2014 Audi S4 problems, complaints & recalls
Most-reported problem areas: Steering (6) · Power Train (3) · Fuel/Propulsion System (2)
🧭 Reliability snapshot
Compared against other Audi S4 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (1)
Air Bags 2014-10-24 · campaign 14V667000 · 101,938 vehicles
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2015 Audi A4 and S4 vehicles manufactured February 16, 2012, to October 21, 2014, and 2013-2015 Audi Allroad vehicles manufactured March 12, 2012, to October 21, 2014. Due to an improper algorithm in the air bag control module, if a crash necessitates deployment of the side air bags, a second impact to the front of the vehicle may not command the front air bags to also deploy.
Risk: If the front air bags do not deploy in the event of a secondary impact to the front of the vehicle, there is an increased risk of occupant injury.
Fix: Volkswagen will notify owners, and Audi dealers will update the air bag control unit software, free of charge. The recall began on November 14, 2014. Owners may contact Audi customer service at 1-800-822-2834. Volkswagen's number for this recall is 69K5.
Service bulletins (725)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-25 · TSB_2083409_1 · Service Bulletin/Repair Instructions
this bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.
Unknown Or Other 2026-09-25 · TSB_2052680_2 · Service Bulletin/Repair Instructions
this bulletin provides information for reporting safety related information to the manufacturer.
Steering 2026-09-22 · TSB_2074846_5 · Service Bulletin/Repair Instructions
this bulletin provides information about vibrations and rotational steering vibrations.
Unknown Or Other 2026-09-15 · TSB_2030471_9 · Service Bulletin/Repair Instructions
this bulletin provides information when the license plate mounting bracket threded inserts are stripped.
Structure:body 2026-09-08 · TSB_2068999_5 · Service Bulletin/Repair Instructions
this tsb describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
Unknown Or Other 2026-08-26 · TSB_2074436_3 · Service Bulletin/Repair Instructions
this bulletin provides information when the horn sound quality is poor.
Showing the 6 most recent of 725 bulletins. Search all of them free at nhtsa.gov.
What owners report
2024-04-16 · Steering · 61,000 mi“the contact owns a 2014 audi s4. the contact stated that while driving at 70 mph, he observed multiple unknown warning lights illuminated. the epc warning light was also illuminated. the contact stated that the “do not drive" message was displayed. additionally, the contact stated that the steering wheel was stiff and failed to steer as intended. t…”
2021-03-05 · Power Train · 100,000 mi“my 2014 audi s4 has a epc light that keeps turning on while driving that car. the epc light will put the car into limp mode and will have a rough idle and can barley drive. when that light turns on you have to pull over immediately and restart the car to continue driving and is a complete safety hazard because it will happen when you are on the fre…”
2020-11-26 · Steering · 90,000 mi“the vehicle exhibits "notchy" steering at highway speeds, particularly in cold weather. at or above approximately 55 mph, the steering wheel tries to "bounce" left and right rather than maintaining center--even when traveling on a straight, freshly-paved section of interstate. the driver has to constantly adjust the wheel to keep the car traveling …”
2020-06-14 · Fuel/Propulsion System · 62,600 mi“i have encountered the problem of air bubble formation in my fuel system (code 16903) when reading codes in my car. i thought it was just a fuel pump issue so i replaced it. i then realized it wasn't just a pump issue as the car kept reading those codes and kept stopping. i talked to a local audi dealership and said i would have to get the fuel pum…”
2020-03-02 · Steering · 74,000 mi“while driving, steering can become notchy. steering inputs are not always 100% transferred to the front wheels. there can be a "dead spot" in the steering. the car does not always follow the intended path. the problem comes and goes, and seems to be exacerbated in colder weather.…”
2019-06-17 · Power Train · 58,000 mi“while traveling at 75mph, uphill, in 100f weather the fuel low pressure fuel system developed a vapor bubble that stalled the low pressure fuel pump and starved the motor for fuel. the car stalled on the freeway and would intermittently restart until the low pressure fuel pump failed. the repair required additional valves and hoses he added to th…”
2019-01-02 · Air Bags“the passenger airbag off indicator light is on. checked with audi and they are saying the passenger occupant detection system needs to be replaced. eaxct same issue as the audi recall 74d5…”
2018-08-28 · Unknown Or Other“the engine mounts have gone bad. the dealership says they are leaking and thus have failed. this is a known issue with this model and several other models. the engine mounts fail at around 50000 miles. i've never heard of engine mounts going bad this early in a cars life. maybe after 100000 miles i would expect for the engine mounts to fail but not…”
2016-12-28 · Steering · 42,430 mi“while driving my 2014 audi s4 on the highway and in turns, the steering goes from feeling tight to very light and back to tight again within a matter of split seconds. this causes drifting on the highway and when cornering because you're compensating for the lack of feeling for an instant and using more input than you should, then the steering ge…”
2016-10-15 · Power Train · 10,000 mi“while driving, a sudden brake followed by a quick acceleration leads to bucking with acceleration and the engine remaining revved up. with braking, the car lunges forward. the only way to change it is by shutting the car off entirely. has occurred at least 7 times in passed 2.5 years. research indicates a faulty mechatronics unit, but 2 ny dealersh…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.