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E30 M3 Stock OEM Dual Mass Flywheels

E30 M3 Stock OEM Dual Mass Flywheels

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.

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Genuine BMW Flywheel - 11221311862 - E30,E30 M3

Genuine BMW Flywheel
This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:

Genuine BMW
Part #: 11221311862
Price: $404.91 (USD) 
$461.66 (12% off MSRP)
Ships in 3 days
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E30 M3 Sport Evo BMW Motorsport Lightweight Flywheel This Genuine BMW Motorsport part (used on the Sport Evo M3s) is a precision machined and balanced lightweight steel flywheel. The stock flywheel weights 19.5 lbs, the Motorsport flywheel is under 12 lbs! This lightweight flywheel will allow the motor to "spool up" faster, improving acceleration. This is a perfect flywheel upgrade for someone who does not want a full aluminum lightweight flywheel and also wants factory Motorsport parts on the E30 M3. After the Turner performance chip this is the next biggest "bang for the buck" for your M3. Flywheel mounting bolts available separately.

This item fits the following BMWs:
1987-1991 E30 BMW M3
Genuine BMW
Part #: 11221312519
Price: $714.75 (USD) 
$726.51 (Sale - Save 0%)
Ships on Aug 1, 2018
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