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 ...
Other materials:
General Information
All components of the refrigerant circuit submitted for
quality observation are always to be sealed (use original
sealing caps of original part).
To date, the original parts (compressor, reservoir,
receiver/dryer, evaporator and co ...
Lifting the vehicle with the jack
Fig. 168 Jacking points for the
vehicle jack (mirrored on the right-hand side of the vehicle)
Fig. 169 Vehicle jack at the rear
left-hand side of the vehicle
First read and observe the introductory
information and safety warnings
The jack may be applied only at the jacking points shown (m ...
Cleaning and changing windscreen wiper blades
Fig. 142 Variants A and B: Changing the
windscreen wiper blades. Variants B and C: Changing the rear window wiper blade
First read and observe the introductory information
and safety warningsThe factory-fitted windscreen/window wiper blades are
coated with graphite. The graphite coating ens ...
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Refrigerant Circuit Pipes and Hoses