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Table of Contents > Air conditioning system > Removing and installing refrigerant circuit, expansion valve, condenser

VW Tiguan Heating & Air Conditioner ➜ Removing and installing refrigerant circuit, expansion valve, condenser

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  
theMANUALS.org  
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤  
Heating, air conditioner - Edition 06.2017  
Removing  
– Separate electrical connector -2-.  
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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  
theMANUALS.org  
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  
theMANUALS.org  
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  
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