Mechatronics unit failed in the vehicle automatic transmission. Transmission failure message listed on car dashboard. Car would not shift out of 1st gear and there was no reverse gear. Car had to be towed to the dealership for repair. Multiple web forum posts stated the audi b8 models suffered this failure frequently.
2010 Audi S4 transmission complaints
Page 3 of 3: complaints 41 to 42 of 42, newest first, as owners wrote them.
The transmission begins to jerk and slam causing the vehicle to accelerate just prior to stopping in stop/go traffic. Noticed that this happens only after driving in stop/go situations and usually around 5mph. Also clanks/jerks while in reverse. Dealer keeps saying they cannot reproduce.
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