M/T - Clacking Noises On Load Change

34 Transmission makes clacking noise at load change

34 10 02

2014532/5

June 17, 2010

Supersedes Technical Service Bulletin Group 34 number 08-04 dated November 25, 2008 for reasons listed below.





Affected Vehicles





Condition

^ Load change noise (clacking) on the A3 and TT with manual gearbox (02Q, 02M, 02Y).

^ Clacking noises from the area of the transmission swivel support at load change.

Technical Background

Engine vibrations can cause the attachments on the swivel support to become loose.

Production Solution

Modification in production.

Service





Because of the anticorrosion protection, the HeliCoil elements pictured in Figure 1 must be installed. If elements without surface coating are installed, the thread may be destroyed by corrosion.

1. Install HeliCoil thread elements (N 100 655 03) on both mounting holes in the gearbox housing for the attachment of the swivel support bolts. Contrary to the Repair Manual, use the following two bolts to attach the swivel support:

^ M10x35 (N 910 661 01).

^ M10x75 (N 106 802 01).

2. Torque bolts to 50 Nm + 90°.





Warranty





Required Parts and Tools

Additional Information

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.