Removing and installing electrical air conditioner compressor V470, Golf GTE — VW

Removing and installing
electrical air conditioner compressor
V470
, Golf GTE
Special tools and workshop equipment required
Torque wrench
V.A.G 1331/
(5…50 Nm)
Air conditioner service station
Removing
Observe safety precautions
Chapter
“
Safety precautions when handling refrigerants
”
.
Comply with notes
Chapter
“
Working on refrigerant circuit
”
.
Observe safety precautions when working on the high-voltage system
Chapter
“
Safety precautions when working on high-voltage system
”
.
Observe safety precautions when working in the vicinity of high-voltage components
Chapter
“
Safety precautions when working in the vicinity of high-voltage components
”
.
Observe the risk category of the high-voltage system
Rep. gr.
00
Risk category of the high-voltage system
.
DANGER
Danger to life due to high voltage.
There is a risk of severe or fatal injury due to electric shock.
The high-voltage system must be de-energised by a suitably qualified technician.
Now de-energise the high-voltage system
Rep. gr.
93
De-energising the high-voltage system
.
Detach front part of front right wheel housing liner far enough to gain access to
electrical air conditioner compressor
V470
General body repairs, exterior
Rep. gr.
66
Wheel housing liner; Assembly overview – front wheel housing liner
.
If fitted, push noise insulation of
electrical air conditioner compressor
V470
5
aside or detach it partly in order to gain access to connectors and bolts.
Separate connector
2
from
electric air conditioner compressor
V470
5
.
Separate high voltage cable
3
from
electric air conditioner compressor
V470
5
.
Disconnect earth wire
4
from
electrical air conditioner compressor
V470
5
.
Extract refrigerant with
air conditioning service station
. Comply with notes
Chapter
.
CAUTION
Risk of freezing injury caused by escaping pressurised refrigerant.
There is a risk of injury to the skin and parts of the body due to freezing.
Always wear safety gloves.
Always wear safety goggles.
Extract refrigerant, and open the refrigerant circuit immediately afterwards.
If more than 10 minutes passed since the refrigerant has been extracted, do not open the refrigerant circuit prior to extracting refrigerant anew. Due to re-evaporation, pressure will be built up in the refrigerant circuit.
Disconnect refrigerant lines
1
and
6
from
electrical air conditioner compressor
V470
5
.
Remove bolts
7
.
Remove
electrical air conditioner compressor
V470
5
.
Installing
Installation is carried out in the reverse order. When installing, note the following:
Only start engine after refrigerant circuit has been assembled.
Only start engine when refrigerant circuits are charged.
Note
The contact points of the
electrical air conditioner compressor
V470
and the engine must be checked prior to installation.
The contact surfaces must be clean, rust- and grease-free.
NOTICE
Risk of damage to the air conditioner compressor. Refrigerant oil may accumulate in the compression chamber of a removed air conditioner compressor.
After installing a new air conditioner compressor or adding new refrigeration oil, give the air conditioner compressor 10 turns by hand before the poly V-belt is fitted.
WARNING
Danger to life due to high voltage.
There is a risk of severe or fatal injury due to electric shock.
The high-voltage system must be brought into operation by a suitably qualified technician.
Specified torque
Chapter
“
Assembly overview - drive unit of air conditioner compressor
”