Stock OEM Dual Mass Flywheels for BMW 5 Series E34 (1987-1995)

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Flywheels don't last forever. They should be treated like any ordinary wear item. Sachs recommends a new dual mass flywheel (DMF) on every other clutch replacement. There are several indicators for replacing the flywheel: damage to the clutch contact plate (from a severely worn clutch disc), grease leaking from inside (overheating), build-up of clutch material on the contact plate (excessive slipping and overheating), and failure of the internal damping system.

The dampening system uses rubber or coil springs to absorb driveline vibrations. Through age, excessive heat, and aggressive use the rubber loses its resilience and the metal springs lose their strength and become brittle. If the clutch and flywheel have become overheated the internal grease may break down as well. A DMF failure can be massive and catastrophic, not to mention dangerous as bits of metal and rubber fling themselves through the transmission bellhousing. Heat and aggressive driving will accelerate the wear so race and track cars should have their stock flywheels replaced at regular intervals or with any new clutch. Even normal street cars should plan for a new flywheel if it has high mileage.

DMF wear can only be checked with the transmission and clutch removed. If you can rotate the outer flywheel more than 20mm in either direction then it should be replaced.


OEM LuK Twin Mass Flywheel -- E36 E34 E39 - M50 M52
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T#:360442
Part#: 21211223593
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Genuine BMW Twin Mass Flywheel D=228mm - 21211223593 - E34,E36
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T#:21749
Part#: 21211223593
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Dual Mass Flywheel - E34 535i
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T#:48932
Part#: 21211223010
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Genuine BMW Twin Mass Flywheel D=265mm - 21201223453 - E34
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T#:48853
Part#: 21201223453
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Dual Mass Flywheel - E30 325i,325ix, E34 525i with M20 engine
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T#:19145
Part#: 11221706573
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