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:
2-pack HS Performance surfacer
Designation:
2-pack HS Performance surfacer -LVM 014 100 A4-, white
2-pack HS Performance surfacer -LVM 014 173 A4-, dark grey
2-pack HS Performance surfacer -LVM 014 190 ...
Removing and installing washer fluid reservoir
Special tools and workshop equipment
required
Drip tray
Note
Removal and installation of washer fluid reservoirs with
headlight washer system are described. Removal and installation
of washer f ...
Leaks or internal damage (e.g. noises or lack of power)
–
Drain refrigerant circuit.
–
Remove air conditioner compressor.
Note
In the event of internal damage (to air conditioner
compressor), purge with R134a refrigerant
→ ...
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Handling refrigerants
First aid