2015 Audi A4 problems & reliability
19 owner complaints filed with NHTSA for the 2015 Audi A4. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
2 complaints report injuries (2 injured).
Federal crash records (FARS 2020–2023): 2015 Audi A4 vehicles were involved in 8 fatal crashes with 4 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine → | 10 | 53% |
| Electrical System | 3 | 16% |
| Exterior Lighting | 2 | 11% |
| Unknown OR Other | 2 | 11% |
| Air Bags | 1 | 5% |
| Engine and Engine Cooling | 1 | 5% |
| Forward Collision Avoidance | 1 | 5% |
| Fuel/propulsion System | 1 | 5% |
| Power Train | 1 | 5% |
| Structure | 1 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“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 · filed Jul 15, 2026
“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…”
Engine and Engine Cooling · filed Dec 4, 2025
“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 · filed Feb 18, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
490 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2015 Audi A4. The 10 most recent:
This bulletin provides a statement regarding the bottleneck of supply for VW approved oil types VW 504.00 and VW 507.00.
TSB_2082846_1 · Service Bulletin/Repair Instructions · issued Jul 27, 2026
This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
TSB_2073747_4 · Service Bulletin/Repair Instructions · issued Jul 9, 2026
This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
TSB_2073282_1 · Service Bulletin/Repair Instructions · issued Jul 9, 2026
This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
SM 01-2026 · Other · issued Jul 9, 2026
This bulletin provides infomraiotn when there is a gearbox malfunction message in the instrument clostuer; DTC P0706; vehicles with 0AW gearbox.
TSB_2034863_5 · Service Bulletin/Repair Instructions · issued Jul 2, 2026
This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
TSB_2074640_3 · Service Bulletin/Repair Instructions · issued Jun 26, 2026
This bulletin provides information when there are noises from the area around the instrument cluster.
TSB_2059335_7 · Service Bulletin/Repair Instructions · issued Jun 23, 2026
This bulletin provides informaiton when the transmission warning message appears in the cluster; P074100 stored in the TCM.
TSB_2028902_5 · Service Bulletin/Repair Instructions · issued Jun 23, 2026
This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
TSB_2074729_3 · Service Bulletin/Repair Instructions · issued Jun 23, 2026
This bulletin provides informaiton when there is a leak on the oil hole between the planetary and the transfer box.
TSB_2082086_1 · Service Bulletin/Repair Instructions · issued Jun 22, 2026
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2015 Audi A4 in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2015 Audi A4?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.