2015 Audi A6 problems
Light NHTSA footprint — 21 owner complaints. Either a clean record or thin data; we'll show what's there.
The 2015 Audi A6 has 21 NHTSA owner complaints on file (U.S. federal records, as of July 2026). The most-reported system is engine at 6 complaints, typically surfacing around 80,667 miles (~$3,100 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2012 A6 | 59 | 1 |
| 2013 A6 | 52 | 2 |
| 2014 A6 | 41 | 1 |
| 2015 A6 (this page) | 21 | 0 |
| 2016 A6 | 51 | 1 |
| 2017 A6 | 20 | 0 |
| 2018 A6 | 2 | 2 |
Above-average reliability for the segment. Few systemic issues on file.
Buyable on the data — keep up the usual maintenance and inspect normally.
- No systemic severe-failure pattern in the complaint record
- Reliability score 8.6/10 — above the segment average
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
NHTSA crash-test safety ratings 5 / 5 overall
Driver-assist features on the tested model: Electronic stability control: Standard · Forward collision warning: Optional · Lane departure warning: No
Source: NHTSA New Car Assessment Program — tested configuration: 2015 Audi A6 4 DR FWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Buying a used 2015 Audi A6? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.
What to inspect on this specific car
- engine — 6 owner reports · tends to show around 80,667 mi · ~$3,100 to fix
- airbags — 3 owner reports · ~$1,100 to fix
- electrical — 3 owner reports · tends to show around 73,493 mi · ~$850 to fix
Recalls to confirm are done
Run the VIN from the listing — no active recalls on this model right now, but confirm none were opened after this car was built.
Verdict for buyers: 8.6/10 model. The priciest documented failure is engine (~$3,100) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.
See the full pre-purchase inspection checklist →Ask anything about your 2015 Audi A6
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
Top trouble spots 3 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
Takata recall dealership indicates that this replacement product is not available anywhere to have it fixed.
The brakes are grabby and with a gentle depression of the brake pedal the car comes to a sudden jerky stop. Usually happens from slowing down from 10mph to 0mph the transmission jerks hard when speed drops from 15mph the engine erroneously shows check engine light during…
Coolant sprayed on engine components due to leaking Coolant /Water pump. Coolant level is falling below minimum level - Problem confirmed by the dealer 1. Water pump 2. Coolant sprayed onto engine components - potential fire hazard 3. Confirmed by dealer 4. Unknown 5, Umknown
While driving at night there was a flash flood on a known flood road. After proceeding through what was maybe 6"-12" of water, vehicle's amber steering defective warning light appeared with the notification stating that the vehicle was safe to drive. The next day while driving,…
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2015 Audi A6 reliable?
Mostly yes. With a reliability score of 8.6 out of 10 based on 21 owner complaints filed with NHTSA, the 2015 Audi A6 is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2015 Audi A6?
On the NHTSA data, the 2015 Audi A6 does not need avoiding. Buyable on the data — keep up the usual maintenance and inspect normally. The record behind that call: No systemic severe-failure pattern in the complaint record; Reliability score 8.6/10 — above the segment average. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2015 Audi A6?
Inspect the engine first — it's the most-reported issue on this model, with 6 owner complaints filed. Typical failure occurs around 80,667 miles. Average repair cost runs about $3,100 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2015 Audi A6 a good used car to buy?
It scores 8.6 out of 10 on our NHTSA-based read of 21 owner complaints. The main thing to watch is engine. Typical failure occurs around 80,667 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2015 Audi A6?
Based on NHTSA records, the most-reported issue is engine, with 6 complaints filed. Typical failure occurs around 80,667 miles. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Typical failure occurs around 80,667 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Audi A6 has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2015 Audi A6?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 21 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.