Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Note
lk
Under certain conditions, the fluid
reservoir with desiccant bag no lon‐
ger has to be renewed each time the
refrigerant circuit is opened ⇒ Air
conditioning systems with refriger‐
ant R1234yf - General information;
Rep. gr. 87 ; Refrigerant circuit; Re‐
newing components or ⇒ Air condi‐
tioning system with refrigerant
R134a; Rep. gr. 00 ; Renewing
components .
2.3
Removing and installing refrigerant cir‐
cuit pressure sender - G805-
Special tools and workshop equipment required
♦ Socket 24 mm - T40284-
♦ Torque wrench - V.A.G 1410-
♦ Engine bung set - VAS 6122-
22
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Removing
– Separate electrical connector -2-.
lk
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– If, when detaching the pressure sender, refrigerant escapes
from the refrigerant line for longer than 1 second, tighten the
pressure sender and renew the non-return valve that is de‐
fective.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– Counterhold refrigerant line using a suitable tool.
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant. If handled incorrectly, union could break off and refriger‐
ant could escape.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Counterhold refrigerant lines using a suitable tool.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
– While doing so, detach pressure sender for refrigerant circuit
- G805- -1- using socket, 24 mm - T40284- .
Installing
Install in reverse order of removal, observing the following:
– Renew seal for pressure sender for refrigerant circuit - G805-
-1-.
Specified torques
♦ Pressure sender for refrigerant circuit - G805-
⇒ Item 6 (page 18)
2.4
Removing and installing expansion
valve
Special tools and workshop equipment required
2. Refrigerant circuit
23
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Torque wrench - V.A.G 1331-
♦ Engine bung set - VAS 6122-
lk
Removing
Vehicles with 176 kW TDI bi-turbo engine
– Remove low-pressure turbocharger ⇒ Rep. gr. 21 ; Turbo‐
charger; Removing and installing turbocharger .
Vehicles with TDI engine
– Remove charge air cooler connecting pipe ⇒ Rep. gr. 21 ;
Charge air system; Assembly overview - charge air system .
24
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Continued for all vehicles
– Remove nuts -1- and -3-.
– Fold heat shield -2- as far as possible in -direction of arrow-.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
lk
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
– Unscrew nuts -3- and -4- of refrigerant line with internal heat
exchanger -1-.
– Unscrew bolt -2-.
– Pull refrigerant line with internal heat exchanger -1- off expan‐
sion valve.
2. Refrigerant circuit
25
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Unscrew bolts -1- and -3-.
– Pull expansion valve -4- out of heat insulation -2-. lk
Installing
Install in reverse order of removal, observing the following:
– Moisten new seals -1- with refrigerant oil before installing.
– Press new seals -1- on connecting pipes -2-.
– Check refrigerant lines for dirt and damage.
– Push refrigerant lines -2- into expansion valve by hand.
– Screw bolt -1- in by hand.
– Tighten bolt -1-.
26
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Note
♦ Disregard items -1, 3- and -4-.
♦ If heat insulation -2- is missing or improperly installed, it may
lead to reduced performance of the air conditioning system
(due to changes in the set mapped values through heat radi‐
ation).
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
lk
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.1 System overview - refrigerant circuit”, page 17
♦ Charge air system; Assembly overview - charge air system ⇒
Rep. gr. 21 ; Charge air system; Assembly overview - charge
air system .
2.5
Removing and installing condenser
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
2. Refrigerant circuit
27
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
lk
♦ Engine bung set - VAS 6122-
Removing
– Remove front bumper cover ⇒ General body repairs, exterior;
Rep. gr. 63 ; Front bumper; Removing and installing bumper
cover .
– Remove centre guide profile -A- from lock carrier -arrows-.
28
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Press retainer -4- down and pull air ducts -2- forwards slightly.
– Release air ducts -2- from lower mountings -arrows-.
– Remove air ducts -2- downwards.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
lk
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
– Unscrew bolts -5-.
– Remove refrigerant lines -3- from connection on condenser.
2. Refrigerant circuit
29
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Have a second mechanic release retaining clips -1- on left and
right in -direction of arrow A-. While doing this, remove con‐
denser -3- from mountings upwards in direction of
-arrows B-.
– Remove condenser -3- downwards.
Installing
Install in reverse order of removal, observing the following:
– If the condenser has been renewed, 10% of the total quantity
of refrigerant oil specified for the fitted air conditioning com‐
pressor must be filled into the refrigerant circuit
⇒ “5 Technical data”, page 9 .
– Moisten new seals with refrigerant oil before installing refrig‐
erant line.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
lk
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.2 Assembly overview - condenser”, page 20
♦ Front bumper; Assembly overview - front bumper ⇒ General
body repairs, exterior; Rep. gr. 63 ; Front bumper; Assembly
overview - front bumper cover .
2.6
Removing and installing desiccant bag
or cartridge
⇒ “2.6.2 Removing and installing desiccant bag or cartridge, Mod‐
ine condenser”, page 33
⇒ “2.6.3 Removing and installing desiccant bag or cartridge,
Showa/Keihin condenser”, page 37
2.6.1
Removing and installing desiccant bag
or cartridge, Denso condenser
Special tools and workshop equipment required
30
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Torque wrench - V.A.G 1410-
♦ Engine bung set - VAS 6122-
lk
♦ Commercially available claw grip
Removing
– If necessary, remove parts of charge air system ⇒ Rep. gr.
21 ; Charge air system; Assembly overview - charge air sys‐
tem .
– Remove radiator grille ⇒ General body repairs, exterior; Rep.
gr. 66 ; Radiator grille/front trim; Removing and installing ra‐
diator grille .
2. Refrigerant circuit
31
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Have a second mechanic release retaining clips -1- on left and
right in -direction of arrow A-. While doing this, remove con‐
denser -3- from mountings upwards in direction of
-arrows B-.
– Tip condenser as far forwards as possible.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
lk
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– Unscrew plug -A-.
– Pull dryer mount -C- with desiccant bag -D- upwards out of
receiver.
– Use a claw grip, for example, to pull filter element -E- upwards
out of receiver.
– Immediately seal open receiver with clean plugs from engine
bung set - VAS 6122- .
Installing
Install in reverse order of removal, observing the following:
Note
The plug, seals and desiccant bag must be renewed every time
the receiver has been opened ⇒ Electronic parts catalogue (ET‐
KA) .
– Through the opening, check threads and sealing surfaces of
receiver on condenser for contamination or damage.
32
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Insert filter element -E- in correct installation position into re‐
ceiver of condenser.
– Take desiccant bag -D- out of transport bag and insert it into
dryer mount -C-.
– Insert dryer mount together with desiccant bag into receiver of
condenser.
– Fit and screw in the screw plug -A-.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
lk
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.2 Assembly overview - condenser”, page 20
♦ Radiator grille/front trim; Assembly overview - radiator grille ⇒
General body repairs, exterior; Rep. gr. 66 ; Radiator grille/
front trim; Assembly overview - radiator grille
2.6.2
Removing and installing desiccant bag
or cartridge, Modine condenser
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1410-
2. Refrigerant circuit
33
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Engine bung set - VAS 6122-
lk
♦ Socket T50
Removing
– If necessary, remove parts of charge air system ⇒ Rep. gr.
21 ; Charge air system; Assembly overview - charge air sys‐
tem .
– Remove radiator grille ⇒ General body repairs, exterior; Rep.
gr. 66 ; Radiator grille/front trim; Removing and installing ra‐
diator grille .
– Have a second mechanic release retaining clips -1- on left and
right in -direction of arrow A-. While doing this, remove con‐
denser -3- from mountings upwards in direction of
-arrows B-.
– Tip condenser as far forwards as possible.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
34
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Unscrew protective cap -1- using socket insert T50 .
– Press sealing cap -1- in slightly.
– Remove circlip -arrow-.
– Screw an M12 bolt into cap and pull it carefully out of receiver
-2-.
– Pull desiccant bag out of receiver using a commercially avail‐
able pick-up tool.
– Manufacture tool from welding wire (2 mm ∅) according to fol‐
lowing dimensions.
a - 380 mm
b - max. 7 mm
c - max. 6 mm
To prevent damage to the receiver, it is essential to hook the
welding wire on the strainer as shown in the illustration.
– Carefully pull strainer -2- with welding wire -1- out of receiver.
2. Refrigerant circuit
35
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– If repair work is interrupted, seal open receiver with plug -1- to
prevent ingress of dirt and moisture.
– Seal open receiver immediately with plug -1- to prevent in‐
gress of dirt and moisture.
Installing
Install in reverse order of removal, observing the following:
Note
The protective cap, seals and desiccant bag must always be re‐
newed after opening the receiver ⇒ Electronic parts catalogue
(ETKA) .
– Moisten new seals with refrigerant oil before installing refrig‐
erant line.
– Through the opening, check threads and sealing surfaces of
receiver on condenser for contamination or damage.
– Insert filter element (with strainer) -2- in correct installation po‐
sition into receiver of condenser.
•
The filter element must be inserted as far as stop.
– Take desiccant bag out of transport bag and insert it into re‐
ceiver of condenser.
– Insert sealing cap -1- and press it downwards until circlip
-arrow- can engage in groove.
36
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Screw in protective cap -1- using socket insert T50 .
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
lk
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.2 Assembly overview - condenser”, page 20
♦ Radiator grille/front trim; Assembly overview - radiator grille ⇒
General body repairs, exterior; Rep. gr. 66 ; Radiator grille/
front trim; Assembly overview - radiator grille
2.6.3
Removing and installing desiccant bag
or cartridge, Showa/Keihin condenser
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1410-
2. Refrigerant circuit
37
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Engine bung set - VAS 6122-
♦ Socket T50
Removing
– Depending on engine fitted, remove parts of charge air system
⇒ Rep. gr. 21 ; Charge air system; Assembly overview -
charge air system .
lk
– Remove radiator grille ⇒ General body repairs, exterior; Rep.
gr. 66 ; Radiator grille/front trim; Removing and installing ra‐
diator grille ⇒ General body repairs, exterior; Rep. gr. 66 ;
Radiator grille/front trim; Removing and installing radiator
grille .
– Have a second mechanic release retaining clips -1- on left and
right in direction of -arrow A- and remove condenser -3- up‐
wards out of mountings in direction of -arrow B-.
– Tip condenser as far forwards as possible.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
38
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Unscrew plug -A-.
– Pull desiccant cartridge -E- upwards out of receiver of con‐
denser.
– Seal open receiver immediately with plug -A- to prevent in‐
gress of dirt and moisture.
Installing
Install in reverse order of removal, observing the following:
Note
The protective cap, seals and desiccant bag must always be re‐
newed after opening the receiver ⇒ Electronic parts catalogue
(ETKA) .
– Moisten new seals with refrigerant oil before installing.
– Through the opening, check threads and sealing surfaces of
receiver on condenser for contamination or damage.
– Assemble plug -A- with seals -B- and -C-.
– Remove dryer cartridge -E- from transport bag and insert it in
receiver.
– Install plug -A-.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.2 Assembly overview - condenser”, page 20
♦ Radiator grille/front trim; Assembly overview - radiator grille ⇒
General body repairs, exterior; Rep. gr. 66 ; Radiator grille/
front trim; Assembly overview - radiator grille
Component
Plug
Specified torque
5 Nm
2. Refrigerant circuit
39
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
2.7
Removing and installing damper weight
for refrigerant line, low-pressure side
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
lk
Removing
– Unscrew bolts -3-.
– Remove damper weight -2- from refrigerant line on low-pres‐
sure-side -1-.
Installing
Install in reverse order of removal, observing the following:
– Fit damper weight -2- on refrigerant line on low-pressure-side
-1-. Take specified dimension -a- = 30 ± 5 mm into account
while doing so.
Note
♦ Ensure that the damper weight -2- is firmly seated on the re‐
frigerant line and that it won't make contact with any other
components during any condition.
♦ The refrigerant line on the low-pressure side -1- must not be
pinched by the additional weight -B-.
Specified torques
Component
Specified torque
10 Nm
Bolts on damper weight
2.8
Removing and installing evacuating and
charging valves on low and high-pres‐
sure side
Special tools and workshop equipment required
40
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Adapter set for service connections - T10364-
♦ Torque wrench - V.A.G 1783-
♦ Engine bung set - VAS 6122-
lk
Removing
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
2. Refrigerant circuit
41
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Continued for all vehicles
CAUTION
lk
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
Note
Disregard items -1- and -3-.
– Unscrew valve core -2- with adapter set for service connec‐
tions - T10364- .
Installing
Install in reverse order of removal, observing the following:
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.1 System overview - refrigerant circuit”, page 17
42
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
2.9
Removing and installing refrigerant line
with internal heat exchanger
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
♦ Engine bung set - VAS 6122-
Removing
Vehicles with 176 kW TDI bi-turbo engine
– Remove low-pressure turbocharger ⇒ Rep. gr. 21 ; Turbo‐
charger; Removing and installing turbocharger .
Vehicles with TDI engine
– Remove charge air cooler connecting pipe ⇒ Rep. gr. 21 ;
Charge air system; Assembly overview - charge air system .
2. Refrigerant circuit
43
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Continued for all vehicles
– Remove nuts -1- and -3-.
– Fold heat shield -2- as far as possible in -direction of arrow-.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
lk
– Unscrew bolt -7-.
– Pull off refrigerant line -6- with internal heat exchanger from
expansion valve.
– Unscrew nuts -1- and -3- and pull off refrigerant lines -2- and
-4-.
– Remove refrigerant line -5- with internal heat exchanger.
44
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Installing
Install in reverse order of removal, observing the following:
– Clean the connections on the expansion valve -2- and internal
heat exchanger -4-, and check for damage.
– Thoroughly clean connections of refrigerant lines and check
lines for damage.
Note
Ensure proper seating of seals in the groove of the respective
refrigerant line.
– Insert seals -1- and -3- into groove on connection of internal
heat exchanger.
– Insert internal heat exchanger on expansion valve.
– Tighten bolt -5-.
– Connect refrigerant lines -2- and -4- with internal heat ex‐
changer to connections.
– Screw on nuts -1- and -3- and tighten them.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
lk
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.1 System overview - refrigerant circuit”, page 17
♦ Charge air system; Assembly overview - charge air system ⇒
Rep. gr. 21 ; Charge air system; Assembly overview - charge
air system .
2.10
Removing and installing refrigerant line
between condenser and evaporator
Special tools and workshop equipment required
2. Refrigerant circuit
45
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Torque wrench - V.A.G 1331-
lk
♦ Engine bung set - VAS 6122-
Removing
– Remove front bumper cover ⇒ General body repairs, exterior;
Rep. gr. 63 ; Front bumper; Removing and installing bumper
cover .
– Remove right engine mounting ⇒ Rep. gr. 10 ; Assembly
mountings; Assembly overview - assembly mountings .
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
46
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
– Unscrew nut -3-.
– Separate refrigerant lines.
lk
2. Refrigerant circuit
47
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Unscrew bolt -5- of lower refrigerant line -3-.
– Remove refrigerant line -3- from condenser -1-.
– Unclip refrigerant line -3- from retainers, and remove it.
Installing
Install in reverse order of removal, observing the following:
Note
Ensure proper seating of seals in the groove of the respective
refrigerant line.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
lk
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.1 System overview - refrigerant circuit”, page 17
♦ Assembly mountings; Assembly overview - assembly mount‐
ings ⇒ Rep. gr. 10 ; Assembly mountings; Assembly overview
- assembly mountings .
2.11
Removing and installing refrigerant line
between condenser and air conditioner
compressor
Special tools and workshop equipment required
48
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
lk
♦ Torque wrench - V.A.G 1331-
♦ Engine bung set - VAS 6122-
Removing
If necessary, remove parts of the air filter ⇒ Rep. gr. 24 ; Air filter;
Assembly overview - air filter housing or ⇒ Rep. gr. 23 ; Air filter;
Assembly overview - air filter housing .
If necessary, remove parts of the air ducting ⇒ Rep. gr. 24 ; Intake
manifold; Assembly overview - intake manifold or ⇒ Rep. gr. 23 ;
Intake manifold; Assembly overview - intake manifold .
If necessary, remove parts of charge air system air ducting ⇒
Rep. gr. 21 ; Charging; charge air system .
– Remove front bumper cover ⇒ General body repairs, exterior;
Rep. gr. 63 ; Front bumper; Removing and installing bumper
cover .
– If fitted, remove noise insulation ⇒ General body repairs, ex‐
terior; Rep. gr. 66 ; Noise insulation; Removing and installing
noise insulation .
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
2. Refrigerant circuit
49
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
lk
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
– Unscrew bolt -5- of upper refrigerant line -3-.
– Remove refrigerant line -3- from condenser -1-.
50
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Unscrew bolt -3- of refrigerant line -2-.
– Remove refrigerant line -2-.
Installing
Install in reverse order of removal, observing the following:
Note
Ensure proper seating of seals in the groove of the respective
refrigerant line.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
lk
Specified torques
♦ ⇒ “2.1 System overview - refrigerant circuit”, page 17 .
♦ ⇒ “3.1 Assembly overview - drive unit of air conditioner com‐
pressor”, page 54
2.12
Removing and installing refrigerant line
between air conditioner compressor and
evaporator
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
2. Refrigerant circuit
51
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
♦ Engine bung set - VAS 6122-
Removing
If necessary, remove parts of the air filter ⇒ Rep. gr. 24 ; Air filter;
Assembly overview - air filter housing or ⇒ Rep. gr. 23 ; Air filter;
Assembly overview - air filter housing .
If necessary, remove parts of the air ducting ⇒ Rep. gr. 24 ; Intake
manifold; Assembly overview - intake manifold or ⇒ Rep. gr. 23 ;
Intake manifold; Assembly overview - intake manifold .
If necessary, remove parts of charge air system air ducting ⇒
Rep. gr. 21 ; Charging; charge air system .
– If fitted, remove noise insulation beneath engine ⇒ General
body repairs, exterior; Rep. gr. 66 ; Noise insulation; Remov‐
ing and installing Noise insulation .
– Detach coolant expansion tank and place to one side.
Vehicles with R134a refrigerant
– Drain refrigerant circuit ⇒ Air conditioning system with R134a
refrigerant; Rep. gr. 00 ; Working with air conditioner service
station .
lk
Vehicles with R1234yf refrigerant
– Drain refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Draining refrigerant circuit .
Continued for all vehicles
CAUTION
Risk of freezing injury caused by escaping pressurised refrig‐
erant.
There is a risk of injury to the skin and parts of the body due to
freezing.
– Wear protective gloves.
– Wear protective goggles.
– Extract refrigerant and open the refrigerant circuit immedi‐
ately afterwards.
– If more than 10 minutes have passed since the refrigerant
was extracted, repeat the extraction process before opening
the refrigerant circuit. Pressure could build up in the refrig‐
erant circuit from continued evaporation.
– For any further work, immediately seal open lines and con‐
nections with clean plugs from engine bung set - VAS 6122- .
52
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
– Unscrew nut -3-.
– Separate refrigerant lines.
– Unscrew bolt -3- of refrigerant line -4-.
– Unclip refrigerant lines from retainers, and remove them.
Installing
Install in reverse order of removal, observing the following:
lk
Note
Ensure proper seating of seals in the groove of the respective
refrigerant line.
NOTICE
Risk of damage to air conditioner compressor if refrigerant cir‐
cuit is empty.
– Never start the engine if the refrigerant circuit is empty.
Vehicles with R134a refrigerant
– Charge refrigerant circuit ⇒ Air conditioning system with
R134a refrigerant; Rep. gr. 00 ; Working with air conditioner
service station .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning system with refrigerant
R134a; Rep. gr. 00 ; Detecting leaks in refrigerant circuit .
Vehicles with R1234yf refrigerant
– Charge refrigerant circuit ⇒ Air conditioning systems with re‐
frigerant R1234yf - general information; Rep. gr. 87 ; Working
with air conditioner service station; Charging refrigerant cir‐
cuit .
– Perform leakage test on re-established line connections of re‐
frigerant circuit ⇒ Air conditioning systems with refrigerant
R1234yf - general information; Rep. gr. 87 ; Refrigerant circuit;
Detecting leaks .
Specified torques
♦ ⇒ “2.1 System overview - refrigerant circuit”, page 17
♦ ⇒ “3.1 Assembly overview - drive unit of air conditioner com‐
pressor”, page 54
2. Refrigerant circuit
53
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
3
Air conditioner compressor
⇒ “3.2 Assembly overview - pulley”, page 56
⇒ “3.3 Removing air conditioning compressor from and installing
on bracket”, page 58
⇒ “3.4 Removing and installing air conditioner compressor”, page
59
⇒ “3.5 Checking high-pressure safety valve on air conditioner
compressor”, page 64
⇒ “3.6 Removing and installing pulley”, page 65
3.1
Assembly overview - drive unit of air
conditioner compressor
Note
♦ In some cases, it is no longer necessary on air conditioning
systems with refrigerant R1234yf to renew the desiccant bag
each time the refrigerant circuit is opened ⇒ Air conditioning
system with refrigerant R1234yf; Rep. gr. 87 ; Refrigerant cir‐
cuit; Renewing components .
♦ In some cases, it is no longer necessary on air conditioning
lk
systems with R134a refrigerant to renew the desiccant bag
each time the refrigerant circuit is opened ⇒ Air conditioning
system with R134a refrigerant; Rep. gr. 00 ; Renewing com‐
ponents .
♦ The illustration shows a different version.
54
Rep. gr.87 - Air conditioning system
2024 VW Tiguan Owner's Manual
