This TSB provides information when the gearbox warning light is on; event memory entry P0174A00/P174E00.
full bulletin at NHTSA ↗2017 Audi A3 powertrain problems
moderate Owners of the 2017 Audi A3 have filed 6 NHTSA complaints about the powertrain 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 →
Complaints
6
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2015 A3 | 8 |
| 2016 A3 | 9 |
| 2017 A3 (this page) | 6 |
| 2018 A3 | 4 |
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.
The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Added Model years
full bulletin at NHTSA ↗This bulletin provides information when there is an oil leak near the transmission cooler.
full bulletin at NHTSA ↗This bulletin provides additoinal information to assist in determining the energy content of lithium-ion high-voltage batteries.
full bulletin at NHTSA ↗This bulletin provides information when there is a gearbox malfunction warning; DTC P0C2900 in the TCM.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
The high voltage battery no longer charges to full. Only 7 out of 8 possible indicator bars are illuminated, the car now only shows 17-20 miles available. When I purchased the car 3 years ago, it showed 28-29 miles available. Car was at Audi dealership, got tested, Audi says it's within tolerance. I disagree, 30% to 40% of the capacity is lost so far. There are many more owners that are reporting…
2017 Audi A3 Etron Sportsback- Engine light turned on at 50k, when scanned for errors no codes. Then around 55k miles started to stall when slowing down or at a full stop. The car must be turned off then immediately go into drive. Felt very dangerous when driving in high traffic areas and areas with many stop lights/signs. Car error say Transmission Malfunction first then says something about…
“Transmission Malfunction/no reverse gear. Okay to continue driving” comes on constantly the past 2 years now. I’ve only had this vehicle 3 years. Yes , it is available for inspection. This puts my safety and the safety of my other passengers at risk because my vehicle will abruptly slow down in fast flowing traffic and it will uncontrollably accelerate when it’s time to come to complete stops. A…
This concerns a recall issued. Audi issued a recall/reimbursement for transmission failure. Mine failed. Car stopped in the middle of roadway. I had transmission repaired before recall was issued. I have attempeted reimbursement and am denied by audi due to my vehicle being a theft recovery. However they have performed multiple recalls on this vehicle since I have owned it with the theft…
Had powertrain trouble with your 2017 Audi A3?
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 2017 Audi A3?
It's a documented issue but not catastrophic. 6 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?
Based on the 6 complaints filed, powertrain issues most often appear around 47,000 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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/2017/Audi/A3.
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.