Volkswagen Golf Service & Repair Manual: Handling refrigerants
WARNING
| Danger of freezing injuries. |
| The refrigerant can emerge as liquid or as vapour. |
| Do not open containers in which this refrigerant is
present. |
|
| If refrigerant containers are opened, the contents may
escape in liquid or vapour form. The higher the pressure in the
container, the more energetic the emergence will be. |
| How high the pressure is depends on two factors: |
| What type of refrigerant is in the container. “This is
because the lower the boiling point, the higher the pressure.” |
| How high the temperature is. “This is because the higher the
temperature, the higher the pressure.” |
|
|
|
Wear protective glasses
Put on protective glasses. This will prevent the refrigerant entering the
eyes, which in certain circumstances can cause severe injury due to frostbite.
Wear protective gloves and apron
| Refrigerants dissolve fats and oils very well. Therefore,
when they come in contact with the skin, they take away the
protective layer of fat. Skin from which the natural oil and fat
have been removed is vulnerable to cold and germs. |
|
|
|
| Do not allow liquid refrigerant to come
in contact with the skin |
|
The refrigerant will draw its latent heat of evaporation from its
surroundings. That can be your skin. This can result in very low temperatures.
The result is local frostbite (boiling point of R134a is -26.5°C at normal
atmospheric pressure).
Do not breath in refrigerant vapour
 Note
| In high concentrations, emerging refrigerant vapours can mix
with the air and displace the oxygen necessary for breathing. |
|
| Refrigerant can decompose in a burning cigarette. The
resulting substances are poisonous and must not be breathed in. |
|
Refrigerants used in car air conditioning systems belong to
the new generation of refrigerants, the chlorine-free,
partially-fluoridated hydrocarbons (H-CFC, R134a).
...
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 throu ...
Other materials:
Removing and installing model designation on radiator grille
Note
The description applies for all emblems. Here the “GTI”
emblem is shown as an example.
Removing
–
Removing radiator grille
→ Chapter
– ...
Renewing Lambda probe
Note
Do not repair Lambda probe wires, since this can result in
malfunctions.
If necessary, replace attachment parts, cable ties or
marking rings to match the uniform probe to the defective probe
as specified. ...
2-pack HS Performance clear coat
Designation:
2-pack HS Performance clear coat -LZK 769 K06 A5-
Issued 08.2012
Product description
2-pack HS Performance clear coat is a high-gloss, VOC
compliant, high-solid ...
© 2016-2026 Copyright www.vwgolf.org
Product characteristics
Welding and soldering on refrigeration systems