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Note
♦
Overfilling with refrigerant oil can occur if the refrigerant oil
level was not checked after the air conditioner compressor
was renewed.
♦
If the air conditioner compressor is not to be replaced, drain
refrigerant oil from air conditioner compressor via the drain
plug. From the total amount of refrigerant oil, fill 50 g direct into
air conditioner compressor and fill remainder in refrigerant cir‐
cuit according to ⇒ vehicle-specific workshop manual .
♦
If the expansion valve is defective (always open) the evapo‐
rator temperature will no longer be regulated so that only
gaseous refrigerant exits the evaporator. It is then possible
that under certain operating conditions, drops of liquid will be
drawn into the air conditioner compressor, which will hen
cause noise (because liquid is incompressible).
10.7 With expansion valve, receiver and
electrical air conditioner compressor
Note
The electrical air conditioner compressor does not have an air
conditioner compressor regulating valve - N280- . Regulation
takes place via the speed of the air conditioner compressor. The
air conditioner compressor contains the control electronics and a
G-supercharger that impels the refrigerant.
Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...
Air conditioning system with refrigerant R134a - Edition 10.2014
158 Rep. gr.00 - Technical data
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