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Differential, remove and install

Raise and support the rear of the vehicle.
Disconnect wiring for speedometer (green arrow) and remove harness from securing clip (blue arrow). 620014.jpg (16257 bytes)
Remove the six 8mm Allen head bolts and 3 supports (blue arrow) securing each axle to the differential.
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Pull axle away from differential and tie it to the body with string or wire. Do not let axle hang from car.
Remove the four 17mm nuts securing the driveshaft to the differential.

The driveshaft can be locked in place by placing manual transmission in gear or Automatic in Park.

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Support differential with jack or similar.

Remove the four 19mm bolts securing differential to rear sub-frame.

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Remove 19mm bolt from rear differential mount. 330007.jpg (16353 bytes)

CAUTION!: Differential is heavy, take care not to drop it when removing final bolt.

Torques :
Differential to rear sub-frame, 19mm bolts : 110 Nm (80 ft lbs.)
Differential cover mount to body : 87 Nm (63 ft lbs.)

 

 

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E30 M3 Repair Manual V2.7.  Copyright ©1999-2001 Koala Motorsport & Brett Anderson