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:
Automatic brake intervention
First read and observe the introductory information
and safety warnings The park assist system helps the driver by braking automatically.
The automatic braking does not replace the driver's responsibility for the accelerator,
brake and clutch .
A parking manoeuvre will be interrupte ...
Cleaning the engine compartment
First read and observe the introductory information
and safety warnings The engine compartment of any motor vehicle is a hazardous
area .
The engine compartment should be cleaned by a qualified workshop. Corrosion protection
could be removed and electrical components damaged if the com ...
Aqua Premium system, blending system for 3-stage colours
Issued 04.2013
Product description/objectives
To attain visually perfect colour transition in blending
area or to adjacent parts such as wings or doors.
Technical data sheet
Substr ...
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Handling refrigerants
First aid