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. |
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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:
Handling wheels and tyres
Fig. 200 Diagram showing how to swap wheels
First read and observe the introductory information
and safety warnings The tyres are the most used and most underestimated parts
of a vehicle. Tyres are very important as the narrow tyre surfaces are the only
contact between the vehicle and the ...
Control and regulating unit for air conditioning system -J127
This control and regulating unit switches off the
refrigerant flow through the second evaporator if the
temperature at the cooling fins of the second evaporator falls
to the freezing point of water (icing protection).
...
Changing headlights over from driving on right to driving on left (gas
discharge headlights)
If a right-hand drive vehicle is driven in a left-hand drive
country, or vice versa, the headlights must be converted. This
is necessary in order to avoid dazzling oncoming traffic with
the asymmetric low beam headlights.
Note
...
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