Volkswagen Golf Service & Repair Manual: Converting R12 refrigerant circuits to R134a refrigerant circuits and
repairing them (retrofitting)
 Note
| The laws and regulations listed below are valid in the
Federal Republic of Germany. Other or additional laws and
regulations may apply in other countries. |
| Sources in other countries may be obtained from the
responsible authorities. |
| Due to the environmental situation and the consequent
legislation, refrigerant R12 is currently neither in production
nor available. Refrigerant R134a was developed as a replacement
for R12. |
| However, air conditioning systems developed and designed for
refrigerant R12 cannot simply be charged with refrigerant R134a.
To ensure trouble-free operation of the air conditioning system
following a retrofit, various components of the refrigerant
circuit must be replaced. |
| An exact description of the procedure for conversion and
instructions for repair of converted refrigerant circuits can be
found in the
→ Repair manual for air conditioning systems with refrigerant
R12 parts 2 and 3. This workshop manual is only
available as a hard copy. |
|
|
|
Note
The laws and regulations listed below are valid in the
Federal Republic of Germany. Other or additional laws and
regulations may apply in ot ...
Note
The laws and regulations listed below are valid in the
Federal Republic of Germany. Other or additional laws and
regulations may apply in ot ...
Other materials:
Undulations
Radial depressions are slight concavities in the tyre
sidewall.
They run from the bead towards the shoulder of the tyre.
These parts appear in the figure
→ Fig..
The cause is the accumulation of material ...
Tachograph
In many European countries there is an obligation to install
and use a tachograph on vehicles (including passenger vehicles)
that serve purely for commercial purposes to transport goods
where their maximum permissible weight including drawbar trailer
or ...
Releasing gas and draining front gas-filled shock absorbers, DCC shock
absorbers
–
Clamp gas-filled shock absorber vertically in vice.
WARNING
Safety goggles must be worn when drilling.
–
Drill a 3 mm hole -A ...
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