Cracking noises on load change from rear axle (can be heard from wheel side)

Bulletin number

LI35.30-P-078692

Component

Power train

Summary

Complaint Cracking noises on load change from rear axle (can be heard from wheel side). See attached reference video Cause Micro‑movement between the rear half‑shaft (axle shaft) and wheel bearing mounting surface. Remedy To verify, a test drive and thorough NVH diagnosis must be performed in order to verify the root cause of the noise. If the axle shafts have been identified as the source of the noise, perform the following steps: 1. Verify that rear axle side shaft part number A 214 350 44 06 are currently installed on both sides. ‑ If an earlier part number is installed, replace the affected side shaft(s) with A 214 350 44 06. (Before installation, proceed with remaining steps) 2. Clean the contact surfaces of the side shafts and wheel bearings (remove any existing Molykote coating and wear debris). 3. Install one anti‑knock washer per side (A000 990 86 62) 4. Reinstall both side shafts 5. Perform road test and verify noise is no longer present Note: Application of Molykote coating is no longer required.

Owners of these vehicles have filed 1 complaints in the transmission category.