Customer states constant howling, droning, or scraping noises heard from the front of the vehicle when...
Audi technical service bulletin 34 13 13 2028650 for 2009-2011 Audi A4, 2010-2011 Audi S4 and 2008-2011 Audi A5 and others.
- Bulletin number
- 34 13 13 2028650
- Component
- Power train
- Summary
- Customer states constant howling, droning, or scraping noises heard from the front of the vehicle when accelerating lightly. The ball bearing for the left flange shaft spins in the gearbox housing because of a gap between the outer bearing ring and the support bracket. This can result in grinding marks and swarf (Figure 1, Figure 2).
Owners of these vehicles have filed 105 complaints in the transmission category.
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