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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Product Description
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Checklist
Never carry out any work on the engine or in the engine compartment
if you are not familiar with the requisite procedures and general safety requirements,
or if you only have access to incorrect operating equipment, service fluids,
and unsuitable tools . The work should be carried ou ...
Cleaning wheels
First read and observe the introductory information
and safety warningsCleaning steel wheels
An industrial cleaner is needed to remove accumulated brake dust. Steel wheels
should therefore be cleaned regularly with a separate sponge.
Any damage to the paint on steel wheels should be touched u ...
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