Suspension/Body - Rear End Cracking/Creaking Noises
42 Cracking or creaking noises from the rear
42 10 04
2022562/3
April 13, 2010.
Supersedes Technical DIAGNOSIS AND REPAIR Group 42 number 10-02 dated April 5, 2010 for reasons listed below.
Affected Vehicles
473
Condition
When driving over manhole covers, curbs or potholes, a cracking or creaking noise occurs in the rear of the vehicle.
Technical Background
-
Production Solution
Improved shock absorber mounting installed in production.
Service
1. Perform this step only if vehicle is A4 Sedan or A5 Coupe. Apply grease on the bump stop of the trunk lid. Perform a test drive. If the noise is
gone, proceed as follows:
^ A4 Sedan: Replace the bump stop. Use Part No. 8K5 827 589 C. The repair is complete.
^ A5 Coupe: Grease the bump stop with Part No. G 060 172 A3 (paste in tube). The repair is complete.
2. Perform this step only if vehicle is A4 Sedan or Avant. Apply grease on the outside of the rear doors locking bars. Perform a test drive. If the
noise is gone, the repair is complete.
474
3. Apply silicon grease G 000 405 A2 on the seat of the jounce bumper (Figure 1, point 8) in the shock absorber mount and on the contact surface to
the shock absorber pipe (Figure 1, point 7). Perform a test drive. If the noise is gone, the repair is complete.
4. Check the noise on a test drive:
a. Drive at 9 - 12 mph with one side of the vehicle on a curb.
b. Repeat with the other side of the vehicle on the curb.
c. If the cracking/creaking occurs only on one side, replace the shock absorber mount on the affected suspension strut (Figure 1, point 9).
5. If the complaint cannot be fixed, locate cause of noise with chassis ears and eliminate.
475
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.
