2015 Audi A4 Complaints

ENGINE — Filed 07/15/2026

Oil consumption is extremely high this vehicle burns way to much oil in short amount of time. Oil has to be added every 300 to 400 miles and there are no leaks present

ENGINE AND ENGINE COOLING — Filed 12/02/2025

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.

ENGINE — Filed 11/08/2022

The vehicle has an oil consumption issue whereby I top off the oil in about every 400 miles. The dealership indicated that this is a known problem with Audi. The issue first started with warnings that engine is overheating and with further warnings that oil level is low

ENGINE,FUEL/PROPULSION SYSTEM — Filed 02/15/2025

Spark plug for damaged due to oil seeping into it. This could lead to overheating of engine or cylinders getting damaged potentially leading to vehicle malfunction when I drive. Audi inspected the part and recommended to reseal the top of the engine. There was a warning for check engine which led to identifying the problem

ENGINE — Filed 09/01/2024

No 3 cylinder piston ring failure .Loss of compression.

ENGINE — Filed 03/10/2024

Piston ring defect and blew from over oil consumption. All years from Audi A4 2012-2019 recall law suit but they did not include 2015 which all years and models have same piston ring manufacturer defect it blew on me while I was driving home . Lucky I was in neighborhood and not on highway very unsafe.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE — Filed 03/03/2023

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.

ELECTRICAL SYSTEM — Filed 02/17/2023

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.

UNKNOWN OR OTHER — Filed 09/23/2022

The second (not movable) glass pane of the "panoramic sunroof" spontaneously shattered. That happened three days ago, because of the potential for water damage I need to have this repaired as soon as possible. However, until I get it repaired it is available for inspection. Apparently many Audi owners have experienced a similar phenomenon, commonly called "exploding sunroof", and other people have had the glass completely explode out. I did not have that happen but the glass did shatter entirely and completely. There was no rock or anything else that hit the sunroof as far as we know. It did leave significant cracks in the glass and I have photos of it. If the glass had completely blown out, it would have showered glass pieces into the passenger compartment. I did not involve the police or ask for a report. I will be taking the car to the Audi dealer and probably making an insurance claim because the repair will be fairly expensive. My car has always been dealer serviced on schedule. It is in excellent condition (outside of the shattered sunroof glass anyway). There were and are no warning lights or indicators related to the damaged glass.

ENGINE — Filed 12/07/2021

The engine had catastrophic damage. I was driving, full oil, and the engine just died. The mechanic said the engine was destroyed and believes it was a manufacturing mistake.