Volkswagen Golf Service & Repair Manual: Welding and soldering on refrigeration systems
| Before welding and brazing on vehicles (in the vicinity of
the air conditioning system components), extract the refrigerant
and then purge the system by blowing through with compressed air
and using nitrogen. |
| The products of decomposition of refrigerants under heat are
not only poisonous but are strongly corrosive, so that pipework
and system parts could be attacked. This refers primarily to
hydrogen fluoride. |
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| A pungent odour indicates that the products of decomposition
mentioned above are already present. Breathing in these
substances must be avoided under all circumstances, or the
bronchial tubes, lungs and other organs could be injured. |
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WARNING
Danger of freezing injuries.
The refrigerant can emerge as liquid or as vapour.
...
In the event of contact with the eyes or mucous membranes,
wash immediately with copious running water and summon an eye
specialist.
In t ...
Other materials:
Removing and installing metering pump -V54-, Golf GTE
Removing
Note
Pay attention to correct part number of metering pump -V54-
(different versions)
→ Electronic Parts Catalogue.
Checking metering pump -V54- with “end sealing valve” ...
Washing the vehicle with a high-pressure cleaner
First read and observe the introductory information
and safety warnings Follow the instructions provided by the manufacturer
when cleaning your vehicle using a high-pressure cleaner. This applies in particular
to the pressure and the spraying distance .
Maintain sufficient distance fro ...
Diesel
First read and observe the introductory information
and safety warnings Diesel
The service intervals are shorter if you use diesel with a high sulphur content
⇒ BookletService schedule, . A Volkswagen dealership will be able to tell
you which countries have diesel with a high sulphur c ...
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Handling refrigerants
First aid