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. *tr
2010 Audi S4 powertrain problems
moderate 42 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
42
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 42 powertrain complaints filed for the 2010 Audi S4, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
How fast does it fail?
Cumulative share of the 10 mileage-bearing powertrain complaints filed against the 2010 Audi S4 by each odometer reading. Median failure: 65,000 mi.
10% have failed by38,000 mi
Half the fleet by65,000 mi
90% have failed by99,000 mi
Curve based on owner-reported odometer mileage at the time of complaint. Reflects when owners filed, not when symptoms first appeared. Maintenance habits and driving conditions shift the curve.
What stands out
Of the 5 model years of Audi S4 we track for powertrain problems, this one carries the most owner complaints on file — 42.
Owners have filed 42 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
What owners are reporting 12 most recent
Gearbox malfunction
My s4 lunges at stops, or it feels like I've been hit from behind. Takeoff from a stop is bouncy, bouncy reversing, especially uphill. If I take my foot off the breaks and hesitate before accelerating, sometimes it's smooth. The tac bounces while coasting to a stop, or going down hill with foot off the pedal. These issues have been intermittent the last several years, but are now more profound.…
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. *tr
While driving in rush hour bumper to bumper traffic the 2010 Audi s4 with the dsg s-tronic transmission becomes very jerky, causing it to surge when starting and stopping or driving at low speeds. As a result it is hard to control, especially in tight traffic, parking areas, or around pedestrians. Additionally, when coming to a complete stop when in this condition the shift from 2nd gear to first…
Jerky dsg transmission shifts, whether downshifting or up shift. Going slow or fast, this only happens once trans is up to temp, I'm pretty sure my mechatronics unit is failing.
Audi 7sp dl501 's-tronic' transmission for: 2010-2015 Audi s4 and s5, 2013-2015 Audi rs5, s6 and s7. Vehicles experience mechatronic unit failure and clutch faults. Resulting in: sudden shaking and violent 'juddering,' hesitation from the car when pressing the gas pedal, a 'surge' forward that feels like the car has been rear-ended, and hard downshifting or clunking when slowing down or driving…
My car flashed gearbox malfunction while driving down interstate I-264 in louisville ky. Car seamed fine for about 2 miles and then suddenly went limp and I had no gears. Had to hit flashers and coast into median. Was almost hit by semi truck. Repair shop could not find anything wrong. Happened again 1 day after getting it back from shop. Taking it to Audi now. I have read that this is…
I was driving on a normal stretch of flat highway approximately 65mph and the dash lit up like a christmas tree out of the blue. Car indicated reverse gear not available, transmission warning lights, and tire pressure monitor system problem all at the same time. Car went in to a "limp mode" and it only shifted in even number gears, and felt like the car was dangerously unstable due to erratic…
At approx 55k miles, mechatronics unit failed. Extremely rough shifts from 1-2 and 2-1, lurching forward after coming to complete stop. Dealership replaced mecharonics unit. At 74k miles entire dsg gearbox failed, while on highway with virtually no power or ability to accelerate. Luckily traffic was at near stop due to rush hour, was able to make it to next offramp in what they call 'limp mode'.…
Had powertrain trouble with your 2010 Audi S4?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2010 Audi S4?
It's a documented issue but not catastrophic. 42 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Across the 39 complaints that reported odometer mileage, most powertrain failures cluster between 48,000 and 79,000 miles, with the median around 63,000. A quarter of owners report trouble before 48,000; a quarter make it past 79,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2010/Audi/S4.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.