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
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
1 - Air conditioner compressor
❑ Different versions ⇒
Electronic parts cata‐
logue (ETKA)
❑ Removing and installing
⇒ page 59
❑ Removing from and in‐
stalling on bracket
⇒ page 58
2 - Seal
❑ Renew after removal
❑ Different versions ⇒
Electronic parts cata‐
logue (ETKA)
❑ Moisten with refrigerant
oil before installation
3 - Refrigerant line, high-pres‐
sure side
4 - Bolt
❑ 22 Nm
5 - Refrigerant line, low-pres‐
sure side
6 - Seal
❑ Renew after removal
❑ Different versions ⇒
Electronic parts cata‐
logue (ETKA)
❑ Moisten with refrigerant
oil before installation
7 - High-pressure safety valve
❑ Checking ⇒ page 64
8 - Air conditioner compressor
regulating valve - N280-
❑ Check with ⇒ Vehicle diagnostic tester in “Guided Fault Finding” mode and ⇒ Current flow diagrams,
Electrical fault finding and Fitting locations
9 - Bolt
❑ Qty. 3
❑ 25 Nm
10 - Belt pulley with overload protection
❑ Different versions ⇒ Electronic parts catalogue (ETKA)
❑ Assembly overview ⇒ page 56
11 - Dowel sleeve
❑ Qty. 2
12 - Oil drain plug
❑ Do not remove unless refrigerant circuit is empty.
❑ Renew oil drain plug/seal after each removal
❑ Different versions ⇒ Electronic parts catalogue (ETKA)
❑ Denso air conditioner compressor - 30 Nm
❑ Mahle/Delphi air conditioner compressor - 20 ± 1 Nm
❑ Sanden air conditioner compressor: 15 ± 1 Nm
3. Air conditioner compressor
55
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
3.2
Assembly overview - pulley
⇒ “3.2.2 Assembly overview - belt pulley, Sanden air conditioner
compressor”, page 57
3.2.1
Assembly overview - pulley, Denso air conditioner compressor
1 - Bolt
❑ Qty. 3
❑ 4.5 Nm
2 - Sealing cover
3 - Nut
❑ 25 Nm
–
To loosen and tighten
the hexagon nut, hold
the pulley in position
with a commercially
available oil filter strap
wrench.
4 - Drive plate
❑ With overload protec‐
tion. Deploys in the
event of excessive tor‐
que (e.g. if the air condi‐
tioner compressor can‐
not rotate freely). The
pulley then rotates with‐
out driving the air condi‐
tioner compressor.
5 - Retaining ring
❑ Renew after removal
❑ Do not reverse when in‐
stalling (flat side faces
air conditioner compres‐
sor)
6 - Pulley
❑ Different versions ⇒
Electronic parts cata‐
logue (ETKA)
❑ Sensitive to impact,
handle with care
❑ Removing and installing ⇒ page 65
7 - Air conditioner compressor
❑ Clean the drive shaft of air conditioner compressor before fitting the pulley.
56
Rep. gr.87 - Air conditioning system
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
3.2.2
Assembly overview - belt pulley, Sanden air conditioner compressor
1 - Nut
❑ 25 Nm
Note
To protect the thread of
ditioner compressor driv
additional plastic cap is
shown in illustration).
–
–
To loosen and tighten
the hexagon nut, hold
the pulley in position
with a commercially
available oil filter strap
wrench.
Clean thread of nut
which was tightened
with locking fluid (e.g.
with a thread tap). If it is
not cleaned, the drive
shaft may be torn off
when it is removed the
next time.
–
–
Clean thread of air con‐
ditioner compressor
drive shaft using a wire
brush.
Install nut with locking
fluid. Locking fluid ⇒
Electronic parts cata‐
logue (ETKA) .
2 - Bolt
❑ 12 Nm
–
–
–
To loosen and tighten
bolts, hold pulley in position with a commercially available oil filter strap wrench.
Threaded holes must be cleaned (e.g. with a thread tap) if self-locking bolts or bolts coated with locking
fluid are screwed into them. Otherwise there is a danger that the bolts will shear off when refitted.
Clean threads of bolts which are to be installed with locking fluid using a wire brush. Then install bolts
with locking fluid. Locking fluid ⇒ Electronic parts catalogue (ETKA)
3 - Drive plate
❑ With overload protection (mountings of spring elements). Deploys in the event of excessive torque (e.g.
if the air conditioner compressor cannot rotate freely). The belt pulley then rotates without driving the air
conditioner compressor.
❑ The spring elements of the drive plate absorb vibrations and noise.
4 - Retaining ring
❑ Renew after removal
❑ Do not reverse when installing; chamfer -A- faces away from air conditioner compressor (flat side towards
air conditioner compressor).
5 - Pulley
❑ With rubber elements -B- and threaded plates -C- for decoupling belt pulley from air conditioner drive
shaft (absorb vibrations and noise).
3. Air conditioner compressor
57
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Heating, air conditioner - Edition 06.2017
Note
♦ Depending on design, the threa‐
ded plates may also be connec‐
ted by means of a ring.
♦ “Cold country” vehicles (e.g.
central and northern Europe)
may be fitted with air conditioner
compressors with a smaller ca‐
pacity. On these air conditioner
compressors, the pulley is slight‐
ly different to the version shown
here (e.g. no rubber elements
-B-) ⇒ Electronic parts catalogue
(ETKA) .
lk
6 - Air conditioner compressor
❑ Clean the drive shaft of air conditioner compressor before fitting the pulley.
3.3
Removing air conditioning compressor
from and installing on bracket
Special tools and workshop equipment required
♦ Torque wrench - V.A.G 1331-
Removing
– Remove noise insulation under engine ⇒ General body re‐
pairs, exterior; Rep. gr. 66 ; Noise insulation; Assembly over‐
view - noise insulation .
– If necessary, remove front right wheel housing liner ⇒ General
body repairs, exterior; Rep. gr. 66 ; Wheel housing liner; Re‐
moving and installing front wheel housing liner .
– Remove poly V-belt ⇒ Rep. gr. 13 ; Cylinder block, pulley end;
Removing and installing poly V-belt .
– Disconnect connector -6- on air conditioner compressor -1-.
– Unscrew bolts -5- and remove air conditioner compressor
-1-.
Note
If only the ancillary bracket is to be removed, the refrigerant lines
on the air conditioner compressor must not be released.
58
Rep. gr.87 - Air conditioning system
2024 VW Tiguan Owner's Manual
