Volkswagen Polo Service & Repair Manual: Pressure Relief Valve
Caution
| Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
system. |
| Only use tools and materials approved by the
manufacturer. |
| The warranty is voided if non-approved tools or
materials are used. |
|
| All components of the refrigerant circuit submitted for
quality observation are always to be sealed (use original
sealing caps of original part). |
| Replace damaged or leaking components of refrigerant
circuit. Refer to
→ Chapter „Components, Replacing“. |
| To date, the original parts (compressor, reservoir,
receiver/dryer, evaporator and condenser) have been filled with
nitrogen gas. This charge is being gradually discontinued. There
is little or no pressure equalization when removing the sealing
plugs from the original part. |
|
|
|
| The pressure relief valve is installed on the A/C compressor
or receiver/dryer. |
| At a pressure of approximately 38 bar (551 psi) positive
pressure, valve opens and closes again once pressure has
dissipated (approximately 30 bar (435 psi)). |
| Refrigerant does not escape completely. |
| Depending on the version, a transparent plastic disc may be
installed which breaks off as soon as the valve is activated. |
|
|
|
Caution
Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
sys ...
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Battery Safety Label
Battery Safety Label
1. -
When working in the area of batteries, fire, sparks, open
flame and smoking are prohibited. Avoid sparks when working with
cables and electrical devices, and from electrostatic discharge.
Avoid s ...
Special Tools
Special tools and workshop equipment
required
Torque Wrench 1331 5-50Nm -VAG1331-
Crimping Pliers, Complete -VAS1978/1A-
...
7-Pin« Trailer Socket
If more electrical consumers need to be connected than the
»7-pin« socket allows, a second
»7-pin« socket must be installed.
Pin assignment must conform to DIN ISO 1724:
1 - Left turn signal
2 - Tail ...
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Refrigerant Circuit Pipes and Hoses