This bulleitn provides information when there are running problems/restricted functions, 0B5 gearbox.
full bulletin at NHTSA ↗2012 Audi S4 powertrain problems
moderate Owners of the 2012 Audi S4 have filed 14 NHTSA complaints about the powertrain, typically surfacing around 76,000 miles at roughly $2,500 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Failure mileage
Complaints
14
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2010 S4 | 42 |
| 2011 S4 | 22 |
| 2012 S4 (this page) | 14 |
| 2013 S4 | 8 |
| 2014 S4 | 3 |
When does it fail?
Of the 14 powertrain complaints filed for the 2012 Audi S4, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 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 11 mileage-bearing powertrain complaints filed against the 2012 Audi S4 by each odometer reading. Median failure: 67,000 mi.
10% have failed by25,000 mi
Half the fleet by67,000 mi
90% have failed by98,000 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
Among the 5 model years of Audi S4 in our records for powertrain problems, this one ranks #3 by owner-complaint volume.
No new NHTSA powertrain complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides information when there is restricted function with DTC P141D (8940), 0B5 gearbox.
full bulletin at NHTSA ↗This TSB provides information when event memory entries cannot be deleted (Mode$0A error) on gearboxes: DL501, DL382/DL382E and DQ500.
full bulletin at NHTSA ↗This bulletin offers information about the basic information needed for technical requests for gaerbox complaints.
full bulletin at NHTSA ↗This bulletin offers information about the basic information needed for technical requests for gaerbox complaints.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of the 2012 S4 consistently report mechatronic unit failures starting around 61,000 miles and pushing toward 86,000 miles. When the mechatronic control module fails, the transmission lights up with "gearbox malfunction" on the dash and drops into limp mode, cutting engine power to a crawl—some cars won't exceed 20–40 mph. Reverse gear becomes unavailable or severely restricted. On the highway, this loss of power has nearly caused accidents; at least one owner stalled in traffic on train tracks. Audi issued TSB 2032211 for drive-position-sensor electrical errors (codes P179E, P179F), but owners say the problem persists across the board regardless of service intervals.
Hard and jerky shifting plagues these transmissions from day one. Owners report clunky, hesitant 1st-to-2nd transitions, banging and shaking above 30 mph, and hesitation in reverse. Some dealers dismiss the behavior as "within specs" even after multiple service visits. Slipping gears and sudden lurches from stops or during shifts—sometimes launching the car forward unexpectedly—are also documented. Mechatronic replacement costs $5,400 at dealerships. Warranty denial is common; one owner's powertrain warranty was voided over a claimed prior ECU tune performed by the previous owner, despite verification from multiple tuners that no tune was on file.
Same Audi S4 powertrain reports on nearby years: 2010 · 2011
Failure modes owners describe
Mechatronic unit failure (gearbox malfunction)
The mechatronic unit—the integrated control electronics for the DSG transmission—fails prematurely, triggering gearbox malfunction alerts and forcing the vehicle into limp mode with severe power loss.
When: Between 61,000–86,000 miles reported; one complaint noted intermittent behavior starting 10–15k miles prior to full failure
Symptoms owners cite: Gearbox malfunction warning on dash; Loss of all or most engine power to transmission; Car unable to exceed 20–40 mph in limp mode; Reverse gear unavailable or severely limited; Vehicle stalls or lurches during stops or freeway merges
Codes mentioned: P179E, P179F
Repairs/costs cited: Mechatronic unit replacement reported at $5,400; circuit board replacement also mentioned; some owners told TCU and ECU software update would be attempted first, followed by mechatronic or full transmission replacement if unsuccessful
Recalls/TSBs owners mention: TSB 2032211 issued; however, some owners reported warranty denial based on alleged prior ECU tune performed by unknown previous owner; Audi does not cover mechatronic or circuit board failures under powertrain warranty in some cases, classifying them as electronic components
Hard and jerky shifting in low gears
Transmission shifts harshly, hesitantly, or with banging and jolting sensations, especially in 1st and 2nd gears and reverse; behavior worsens over time and persists even after dealer review.
When: Reported from new ('clunky since new') through later in vehicle life; becomes progressively worse; one owner reported onset around 61,000 miles
Symptoms owners cite: Hard or abrupt shifts from 1st to 2nd and reverse; Jerky acceleration and deceleration in low gears; Hesitation on takeoff and reversing; Banging or shaking sensations on highway acceleration above 30 mph; Clunky transmission feel since new
Codes mentioned: P179E
Repairs/costs cited: One owner reported dealers repeatedly dismissed complaints as 'operating within manufacturer specifications' despite multiple visits
Transmission slipping and uncontrolled engagement
Gears slip between shifts or fail to engage cleanly; transmission lurches forward suddenly from stops or launches vehicle abruptly during shift events without driver input.
When: Reported during stop-and-go urban driving; can occur at any speed
Symptoms owners cite: Gears slip or feel loose between shifts; Sudden lurch or lunge forward from a stop; Abrupt upshift or downshift that launches car forward without warning; Hard downshifts in stop-and-go traffic
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 12 most recent
While driving approaching a stoplight, I received a "gearbox malfunction. Ok to continue driving with limited functionality" error. The car then barely accelerated and I could not go more than 20mph (I was on a busy road speed limit 35mph but everyone goes about 50). I was able to finally get it to drive well enough to get it to the dealer. Dealer said it needs a new circuit board which is not…
Dsg transmission started to shift poorly. Shifts would "slip" between gears and sometimes it would down shift very hard. This occured mostly in urban driving, stop and go.
Circuit board on the mechatronics unit failed and car is under 100k miles. Sudden shaking and banging on the highway when giving it gas above 30. Frequent jolts, dangerous to drive...
While driving today on the highway my 2012 Audi s4 experienced the common dsg gearbox malfunction alert along woth the TPMS fault light. On the highway loosing all power and causing the vehicle slow drastically while in traffic nearly causing an accident. The amount of complaints on this same issue is astonishing that Audi has not taking care if this yet. This malfunction can cause a serious…
Very abruptly shifts up or down launching the car forward without warning
The dsg transmission in my Audi s4 experiences abrupt jerking from 2nd to 1st great while decelerating. It also jerks and feels like it is being hit while shifting from 1st to 2nd when accelerating normally.
Premature transmission mechatronic failure. Car unable to reverse during a 3 point turn in a roadway across train tracks. Since new the car had a clunky transmission. It progressively got worse but when brought to the dealer it was always, "operating within manufacturer's specifications" this is the 2nd Audi in a row that has been brought in multiple times for a problem that the dealer claims…
Dsg transmission is shifting very rough and sometimes slips. Also lurches forward suddenly from a stop causing the car to lunge forward.
While driving in traffic, my car dropped into lower gears and stopped moving, and two error codes popped up "gearbox malfunction" and "TPMS malfunction". Looking this up online and discussing with my mechanic, this is something happening in a lot of the cars that are this make & model and have the same transmission.
A gearbox malfunction (with codes p179e and p179f) may cause the car enter one of the "limp mode" states, which can cut engine power from the transmission. A message on the dash may say "gearbox malfunction" with a message if the car is driveable or must be brought to the repair shop. In some cases, this loss of power can make things difficult to pull over safely, as the stall can happen in an…
Had powertrain trouble with your 2012 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 2012 Audi S4?
It's a documented issue but not catastrophic. 14 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 13 complaints that reported odometer mileage, most powertrain failures cluster between 61,000 and 86,000 miles, with the median around 76,000. A quarter of owners report trouble before 61,000; a quarter make it past 86,000. 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/2012/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.