BMW Dual Mass Flywheel

Sept. 11, 2017
This bulletin applies to 2013 BMW 328i models as well as all models equipped with a dual-mass flywheel (except Motorsport vehicles). Prior to condemning a dual-mass flywheel as defective, the following three criteria have to be checked and evaluated:

This bulletin applies to 2013 BMW 328i models as well as all models equipped with a dual-mass flywheel (except Motorsport vehicles). Prior to condemning a dual-mass flywheel as defective, the following three criteria have to be checked and evaluated:

1. Total rotational angle at no load condition (with applied torque less than 20 N.m.).

2. Secondary plate longitudinal axial play.

3. Friction surface appearance changes due to thermal overload.

The dual-mass flywheel replacement is justified only if one or more of the following criteria are met:

1. The total rotational free-play, measured at the flywheel gear ring, is equal or greater than 7 tooth.

2. The secondary plate total axial bearing play, measured at the outside diameter of the flywheel, is equal or greater than 5 mm.

3. A significant discoloration in the adjoining area outside the friction ring, or a severe erosion of the friction area is present.

Sponsored Recommendations

Learn how electronic parking brake actuators have replaced manual systems and now play a key role in advanced safety features like automatic emergency braking. This WIYB Training...
Not all fuel injectors are created equal. In this WIYB Training Series, we compare Standard® Fuel Injectors against OE, low-cost imports. See why precision engineering and rigorous...
Carrying active OEM subscriptions for all manufacturers is not possible for many shops. However, access to this software is required for certain modern vehicles and repairs, and...
Learn how to properly lubricate your AIRCAT air tools to keep them running at peak performance. Discover essential daily maintenance and storage techniques, along with the right...

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!