New Generation N62 Engine Chapter 3 P.26
Course Contents/Background Material
© BMW AG, Service Training
- Coolant compressor
The coolant compressor is supplied by Denso, and is clutch-
free, i.e. it functions all the while the engine is running.
The compressor is a 7-cylinder swash plate compressor.
The compressor's displacement can be reduced to less than
3%. This means that no refrigerant is supplied to the coolant
circuit. There is an internal compressor coolant circuit to
maintain lubrication.
The air conditioning electronics regulate the compressor output
via an external control valve.
The compressor is driven via the 4-V-belt.
Fig. 21: Coolant compressor
Index Description
1 Control valve
KT-7703
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