Most common 2015 Audi A4 problems
Share of the 19 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Audi A4 complaints by model year
Best A4 years: 2011, 2016, 2012. Years to avoid: 2020, 2008, 1998, 2006, 1999. Compare all years →
What 2015 Audi A4 owners say
Engine & cooling
The contact owns a 2015 Audi A4. The contact stated that when the vehicle was started, the coolant warning light illuminated. The vehicle was turned off and restarted after 20 minutes, and the coolant warning light was no longer illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 141,177.
The engine failed while I was driving. The car did not show any warning lamps, messages or other symptoms, it just jumped and died. I had the car towed to my mechanic. The mechanic thought it was the starter, but then realized the chain had broken and it hit other parts of the engine, including the pistons catastrophically. The engine is not reparable. My safety was a risk as the car died on a busy road. Audi has asked that I bring the car, at my expense for them to inspect, without offering anything. I have a letter from them indicating that they will not help. ABS SYSTEM and Brake Actuator that is failing or defective. Vehicle was taken to the dealer but was not repaired.
Electrical system
MMI system worked during test drive and then NOT worked after final sale: Safety systems included: The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show. MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates systems controllable by MMI. However, depending on the car model, along with version specified, only some functions will be available. Satellite navigation Radio tuner Media sources Telephone HVAC, climate control Car setup (e.g. central locking), global audio settings, suspension settings Rear view camera and parking sensors Driver information (e.g. fuel economy...) User manual Apple CarPlay 2014 and later model.
Turn signal switch malfunction. When turning right turn direction on, the left turn goes on instead of the right turn. After researching the issue, it looks like it's a common issue with Audi. This is a safety issue and need to be recalled asap.
2015 Audi A4 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | CVT | FWD | 24 / 31 / 26 |
| 2.0L 4-cyl turbo | 6-speed manual | AWD | 22 / 32 / 26 |
| 2.0L 4-cyl turbo | 8-speed automatic | AWD | 21 / 30 / 24 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2015 Audi A4 a good car?
Based on 19 owner complaints filed with NHTSA, the 2015 A4 rates better than average: 81% fewer complaints than a typical year of the A4 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2015 Audi A4?
The engine & cooling — 11 complaints, 58% of all complaints for this model year. Next are the electrical system (3) and lights (2).
How many recalls does the 2015 Audi A4 have?
NHTSA lists no recalls for the 2015 Audi A4. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Audi A4?
The best years by complaints, compared at the same age, are 2011, 2016 and 2012. Years to avoid or approach with caution: 2020, 2008, 1998, 2006 and 1999. See the full Audi A4 years comparison.
At what mileage do 2015 Audi A4 problems happen?
The median mileage reported in complaints is about 46,000 miles; 67% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.