The Lemon Index
201420164th generation (C7)
One of the most reliable · most complaints: airbags
Fewest complaints of its generation (4th generation (C7)).
8 owner complaints, first 3 years 21–29 mpg combined, EPA
Similar cars, same year
2015 Lexus ES 212015 BMW 5 Series 152015 Mercedes-Benz E-Class 31
Lemon Index: 100 = the average car, lower is better.
Engines & versions
When problems show up
Only 5 complaints listed a mileage: too few to say when problems show up.
Questions to ask the seller
- Were recalls 18V862000 (electrical), 18V370000 (airbags) and 18V229000 (engine) done? It has 4 recalls in all. Ask for the dealer printout, or check the VIN.
- Is the airbag light off, and were any airbag recalls done?
- Any oil burning, leaks or check-engine lights? Ask for oil-change records.
- Do the brakes feel even, with no ABS or brake warning light? When were the pads and brake fluid last done?
- Audi sent dealers 1115 repair notes for this car. Was this one done: “Supersedes Technical Service Bulletin Group 01 number 13-86 dated April 15, 2013”?
From this year's own recalls, top problems, top repair bills and Audi's repair notes. Recall repairs are free at any dealer.
How serious. Out of all 8 owner complaints filed so far (every year since it was sold, not just the first 3), owners reported:
“Average car” = what the same number of complaints would include at the rate across every model year we track. Owners report these themselves; NHTSA doesn't confirm the cause.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
Check engine light on? Look up any code →
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 4K to 58K miles (7K to 93K km) on the car (5 of all 8 complaints filed so far listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
In owners' words
Takata recall dealership indicates that this replacement product is not available anywhere to have it fixed.
2015 Audi A6 owner · NHTSA complaint 11056629
Problems Audi told dealers about
Audi sent dealers 1115 repair notes for this car. The ones about its biggest problems:
- Supersedes Technical Service Bulletin Group 01 number 13-86 dated April 15, 2013
- Supersedes Technical Service Bulletin Group 37 number 13-07 dated May 29, 2013
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Recalls 4
- Electrical · recall issued 2018
The auxiliary heater electrical connector on these vehicles may have been incorrectly inserted into the auxiliary heater, possibly resulting in increased electrical resistance.
- Airbags · recall issued 2018
Stress or wear of the body-sensing mat within the front passenger seat may cause the Passenger Occupant Detection System (PODS) control module to malfunction.
- Engine · recall issued 2018
These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that can either become blocked with debris from the cooling system causing it to overheat or can short-circuit from moisture within the …
Show all 4 recalls
- Engine · recall issued 2017
These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that can be blocked with debris from the cooling system, resulting in the pump overheating.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Canada? See recalls at Transport Canada
Safety
Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| Audi A6 4 DR FWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★★ |
| Audi A6 4 DR AWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★★ |
Fuel cost and engines
About $2,850–$3,800 (USD) a year in fuel (EPA estimate at U.S. prices, 15,000 miles or 24,000 km a year). Engines: 2.0L 4-cyl, 3.0L 6-cyl.
Every Audi A6 year. 2015 is highlighted. Lower is better.
Newest year first. Red = worse than average, gray = about average, too new (2023+: a partial score, marked “partial”) or too few complaints to score.
Embed this chart
Put this chart on your site, blog or forum. Free, with the credit line built in; the 2015 bar is highlighted.
<iframe src="https://lemonindex.com/embed/cars/audi-a6/?y=2015" title="Audi A6 reliability by model year (The Lemon Index)" width="100%" height="330" style="border:0;max-width:720px" loading="lazy"></iframe><p style="font-size:13px;margin:4px 0 0">Data: <a href="https://lemonindex.com/cars/audi-a6/2015/">Lemon Index</a> (2015 Audi A6 reliability)</p>Quick answers
Is the 2015 Audi A6 reliable?
Yes, it is one of the most reliable by government complaints. It drew about a third as many complaints as the average car filed with NHTSA in its first 3 years, per car sold (Lemon Index 35; 100 is average, lower is better).
What are the most common 2015 Audi A6 problems?
In owner complaints to the government, the parts named most are airbags (38%), engine (25%) and brakes (12%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2015 Audi A6 have?
4 safety recalls (latest: electrical). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2015 Audi A6 get?
21 to 29 mpg combined, depending on the engine (EPA estimate).
Is the 2015 Audi A6 safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
Does the 2015 Audi A6 have transmission problems?
Transmission and drivetrain issues aren't among its top 5 complaint areas.
How much does the 2015 Audi A6 cost in fuel a year?
About $2,850 to $3,800 a year, by the EPA's current estimate.
What engines does the 2015 Audi A6 have?
2.0L 4-cyl, 3.0L 6-cyl.
Is there a better Audi A6 year than the 2015?
Not nearby: the 2015 drew the fewest complaints per car sold of the Audi A6 years within 3 model years of it.
The Lemon Index counts owner complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model years (100 = average, lower is better). It measures complaints, not crash safety. A complaint is an owner's report, not a confirmed defect. How it works