BMW Dual Mass Flywheel Failure
Sometimes, we see more unusual sights, such as this dual mass flywheel failure. A more common symptom indicating that the dual mass flywheel is on its way out, is shuddering, mostly on pull-away. A BMW dual mass flywheel should not be skimmed. In contrast to a solid flywheel, a dual mass has a damper section in the center.
As can be seen from the photos, the flywheel’s damper section has come apart. This has caused a grease-like substance to be released. It caked onto the outside of the dual mass flywheel, as well as on the inside of the bell-housing. It should be noted that this was still the original flywheel which eventually failed at about 193 000 KM’s.
To prolong the lifespan of the clutch and flywheel, it’s best to avoid clutch balancing. The clutch should be used to engage and disengage gears. Your foot should not stay on the clutch pedal for extended periods of time. And when it is eventually time for replacement, the dual mass flywheel should be replaced in conjunction with the clutch kit. If the vehicle has a solid flywheel, it should be skimmed. Most manufacturers will not validate the warranty if the dual mass flywheel was not replaced with the clutch kit.