Volkswagen Golf Service & Repair Manual: Searching for leaks in refrigerant circuits using leak detector -V.A.G 1796
Note
Small leaks can be detected with, for example, an electronic
leak detector. |
– |
Evacuate refrigerant circuit using an air conditioner
service station
→ Chapter. |
Note
If a larger leak is detected during the evacuation process,
determine cause and rectify as described
→ Chapter. |
If during the evacuation process no leak is detected or a
very small leak is detected that but cannot be located, proceed
as follows
→ Chapter. |
Refrigerant gas is quickly dispersed by air motion.
Therefore drafts must be avoided during a search for leaks. |
If the refrigerant circuit is completely empty, charge with
about 10% of refrigerant capacity (sticker R134a or
vehicle-specific workshop manual). |
– |
Prepare leak detector for operation according to its
operating instructions. |
– |
Always hold probe tip under location of suspected leak. |
|
|
|
If the rate of clicks rises or a howl occurs, depending on
model, a leak has been found (see operating instructions for
leak detector). |
|
|
 |
Note
A leak in the refrigerant circuit can be detected, for
example, by pressurising the circuit to a maximum of 15 bar
using cleaned and dr ...
Note
Small leaks can be detected with, for example, an UV leak
detector additive.
–
Evacuate refrigerant circuit using a ...
Other materials:
Removing and installing light switch trim
Special tools and workshop equipment
required
Torque wrench -V.A.G 1783-
Removing
–
Remove rotary light switch -EX1-
...
Anti-corrosion wax
Designation:
Anti-corrosion wax -AKR 321 M15 4-
Anti-corrosion wax -AKR 321 M16 10-
Issued 04.2009
Product description
Anti-corrosion wax -AKR 321 M15 ...
Reservoir
The reservoir collects the vaporised and gaseous mixture
coming from the evaporator to ensure the air conditioner
compressor receives only gaseous refrigerant. Gaseous
refrigerant is formed from the vapour.
Refrigerant oil flowing in the ...
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