Problems · NHTSA complaints
2014 Audi S5 problems
Owners filed 6 complaints about the 2014 Audi S5 with NHTSA between Dec 2016 and Aug 2026. The most-cited component is power train (2).
Complaints
6
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Power train2
- Engine2
- Fuel/propulsion system2
- Electrical system1
- Steering1
- Suspension1
- Other / unknown1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 28, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
0
0
1
0
0
2
0
1
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 1 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 2 |
| 2023 | 0 |
| 2024 | 1 |
| 2025 | 0 |
| 2026 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Power train
2 reports
“The contact owns a 2014 Audi S5. The contact stated that after starting the vehicle, there was a Control Area Network (CAN) bus system unit TCM error, power brake, and engine failure. The TPMS warning light was illuminated. The dealer was contacted and was unable to determine the cause of the failure. However, the dealer wanted to replace the CAN bus unit. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 70,662.”
Engine
2 reports
“Backup camera, and MMI SYSTEM DONT WORK GOOGLE MAP,suspension front has been replaced at 90k miles”
Fuel/propulsion system
2 reports
“Whenever the ambient temperature outside goes above 95F degrees or I sit in traffic for long periods of time the shuts off. Other times it stalls. There are no warning lamps that turn on to warn of impending shut off. When the car was scanned for codes My scanner shows a “low fuel pressure” code or “steam bubble formation” code.”
Electrical system
1 report
Steering
1 report
“Steering Defective - Do Not Drive Vehicle warning on cluster. Almost impossible to turn steering wheel. Thank goodness did not happen at highway speed. Only 50k miles. YMM not one in the extended warranty that was offered by Audi with this issue. Needed $4k whole new steering rack assembly which was on its 8th revision. Other mult posts with same issue. Audi should expand their help with this issue. Dealership that fixed it was top notch.”
Suspension
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.