This chapter contains information on the following subjects:
→ Warning lamp and coolant temperature display
→ Coolant specification
→ Checking the coolant level and refilling coolant
Never carry out any work on the engine coolant system if you are not familiar with the necessary procedures and if only unsuitable tools as well as incorrect operating equipment and fluids are available ! The work should be carried out by a qualified workshop if you are uncertain. Volkswagen recommends using a Volkswagen dealership for this purpose.
Serious injuries can be caused if work is carried out incorrectly.
Additional information and warnings:

WARNING
Coolant and coolant additives can pollute the environment. Spilt operating fluids must be collected and disposed of properly and with respect for the environment.
Coolant
Warning lamp and coolant temperature displayPressures, Checking
Note
Check cooling performance. The A/C system is functioning
correctly when the air flowing from the instrument panel vents
has a temperature of 70C or lower.
Setting on Climatronic “LO”.
...
7-Pin« Trailer Socket
If more electrical consumers need to be connected than the
»7-pin« socket allows, a second
»7-pin« socket must be installed.
Pin assignment must conform to DIN ISO 1724:
1 - Left turn signal
2 - Tail ...
Searching for Refrigerant Circuit Leaks with Compressed Air or Nitrogen
Note
This repair manual describes different methods for detecting
leaks in the refrigerant circuit. These methods have been tested
and result in success when used correctly.
If when searching for compressed air / Nit ...