Flywheel, remove and install

Remove transmission
Lock flywheel in place by inserting a pry bar against the ring gear teeth, or by any other means possible.
Remove six bolts retaining pressure plate.
CAUTION: Pressure plate is located on dowels, but it may still fall off when last bolt is removed.
Remove pressure plate and clutch disc. The pressure plate is the only thing holding the clutch disc, do not drop it when removing the pressure plate.
Check clutch plate for wear, minimum thickness is 7.5mm (0.020"), and cracks.
Check flywheel for scoring or burn marks, replace or resurface if necessary. Dual mass flywheels cannot be resurfaced. Surface (arrow) should be free of ruts and ridges
Lock flywheel with a large screwdriver, or similar.
Remove 8 bolts.
Check condition of pilot bearing in end of crankshaft (arrow). Replace bearing if necessary.

Clean bolt holes in crankshaft

Install flywheel, followed by ring washer (if fitted). Flywheel has one larger hole for locating on dowel in crank shaft.

Replace bolts. If bolts do not have a locking compound already on the threads, use Loctite #270.

Tighten bolts to correct torque.

Mount a dial indicator to the flywheel and check for axial run out. If run out is more than 0.1mm (0.004"), machine or replace.

Friction surface may be machined , but recessed edge must be machined the same amount.

Non dual mass flywheel, minimum thickness, 29.1mm (1.145")

Dual mass flywheel friction surface cannot be machined.

E30 M3 Repair Manual V2.7. Copyright Š1999-2001 Koala Motorsport & Brett Anderson