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:
Assembly overview - fuel delivery unit/fuel gauge sender, vehicles with
four-wheel drive
1 -
Fuel pump control unit -J538-
Check with → Vehicle
diagnostic tester
Removing and installing
→ Chapter
2 -
Electrical connector
For fuel pump control unit -J538- ...
Comfort
A basic requirement for concentrated and safe driving is the
feeling of comfort in the passenger compartment. Especially when
it is hot and humid, comfort can be attained only through the
use of air conditioning. Of course, open windows, an open
sunroof ...
Removing and installing swivel joint
Special tools and workshop equipment required
Ball joint puller -3287 A-
Angle wrench -V.A.G 1756-
Ring spanner insert -V.A.G 1332/10-
...
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Handling refrigerants
First aid