Drivetrain - Cracking/Rubbing Noise On Turns Or Acceleration
39 Rubbing noise or vibrations when cornering or fully accelerating39 12 11
2021998/2
March 14, 2012.
Supersedes Technical Service Bulletin Group 39 number 09 - 03 dated December 16, 2009 for reasons listed below.
Affected Vehicles
Condition
^ Loud metallic (cracking) noises from the differential when fully accelerating.
^ Rubbing in the drivetrain when maneuvering without fully turning the steering wheel.
Condition is more likely when more than 35,000 miles are on the odometer.
Technical Background
Abnormal wear of the chrome splines, which can lead to metallic noises or rubbing noises from the transfer box.
Production Solution
Transfer box improved in production.
Service
1. Try to reproduce the customer complaint so that it can be clearly assigned to this TSB.
2. Check the part number of the transfer box.
Old: 0AQ.341.010.E
New: 0AQ.341.010.J
3. If the old differential is installed and the mileage is greater than 35,000, replace the differential.
4. If the complaint matches fully but the new part number is installed or the old part number is installed and the mileage is less than 35,000, open a TAC ticket and call the Audi Technical Assistance Center.
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.