Operation CHARM: Car repair manuals for everyone.

Compressor Drive Unit






Compressor Drive Unit

• If drive plate overload protection activates, check compressor for ease of motion before replacing the drive unit. If compressor creates friction, replace it completely.





1 - Compressor drive unit

• Check, driveshaft must be seated free of play in splines of engine drive wheel with thread tightened. Refer to => [ Compressor Drive Shaft ] Service and Repair.

• Tightening specification 60 Nm

• Loosening and tightening, refer to=> [ Compressor Drive Shaft, Loosening and Tightening ] Service and Repair

• Removing and installing, refer to => [ Compressor Drive Shaft ] Service and Repair

• Grease the splines to the engine drive wheel with Grease (G 000 100).

2 - Hex socket head bolt

• Tightening specification 10 Nm

3 - Drive plate

• With overload safeguard, triggers when torque is too-high compressor produces friction and driveshaft runs freely without driving the compressor.

• Run-out, checking and adjusting, refer to=> [ Drive Plate with Overload Protection, Checking Run-Out and Adjusting ] Adjustments.

• Removing and installing, refer to=> [ Drive Plate with Overload Protection ] Service and Repair

4 - Drive plate

• Attached to compressor input shaft

• With overload safeguard, triggers when torque is too-high and driveshaft runs freely without driving the compressor.

• Tightening specification 30 Nm

• Removing and installing, refer to => [ Drive Plate ] Service and Repair

5 - Rubber element

• Decouples drive unit, dampens vibrations and noises.

• When installing, coat rubber element lightly using soapy water as sliding compound.

6 - Spacer

• The original disc must be installed

• Dimensions: 17.5 x 10 x 3 mm

7 - Circlip

• Replace

• Install on proper side level side to compressor

• Removing and installing, refer to => [ Drive Plate with Roller Bearing ] Service and Repair

8 - Drive plate

• With roller bearing.

• Removing and installing, refer to => [ Drive Plate with Roller Bearing ] Service and Repair

• Clean compressor flange before sliding on drive plate.

9 - Compressor

• Different versions may be installed, depending on engine version and country version of vehicle. .