Notes to repairs on refrigerant circuit
Statutes and regulationsVacuum generation with manual vacuum pump -VAS 6213-
In certain cases, vacuum can be generated with the manual
vacuum pump -VAS 6213- instead of with the engine or the vacuum
pump.
–
To do this, connect manual vacuum pump -VAS 6213- to vacuum
hose from connection -B- on brake ...
Checking systems with an expansion valve, receiver and air conditioner
compressor regulating valve -N280- (with externally regulated air conditioner
compressor)
Note
Connecting air conditioner service station
→ Chapter.
Observe the test prerequisites
→ Chapter.
–
Raise engine speed to 2,000 rpm.
...
Bleeding fuel line to metering pump -V54- (filling with fuel)
Note
Air/fuel vapour in the fuel supply to the auxiliary heater
can lead to malfunction when the auxiliary heater is in the
sparking mode. To prevent air/fuel vapour from being drawn in by
the metering pump -V54- and conveyed to the auxili ...