2018 Audi S4 Engine Problems
- Complaints
- 4about this part
- Share
- 57%of 7 total for the year
- Median mileage
- 1,300miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2018 Audi S4, 57% of the 7 complaints for this model year. Where a mileage was given, the median is 1,300 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“When driving in manual mode and transition from on the throttle to off-throttle, there is a 1-2 second delay before the engine stops accelerating and transitions to deceleration. Especially in first gear, this means that the vehicle continues to accelerate for that period of time. I drove another model of Audi with the same engine/transmission (2018 s5) and it exhibits the same behavior. Since the car does not have a physical throttle cable, this would seem to be caused by the throttle not closing as commanded by the ecu or there being a delay in the throttle being commanded to close. …”
NHTSA complaint #11051028, filed 2017-11, 1,300 miles“My 2018 Audi S4 has a catastrophic engine failure issue and this is common with the EA839 engine. There is a knocking in the motor that is caused by internal engine parts (rocker arms needle bearings) becoming loose and dislodged. The metal shavings travel in the motor oil and destroy the engine from the inside. Hendrick Audi northlake examined the car on February 26, and recommended a new engine be installed at a cost of $32,000. I contacted Audi customer care and they reviewed the case only to offer me no assistance with the new engine expense. …”
NHTSA complaint #11648098, filed 2025-03“Water pump defect for the 3.0L ea839 turbo engine found across many Porsche and Audi models. Defect causes damage to vacuum lines, thermostat, and can eventually lead to engine failure if not resolved. No way of knowing this is happening until you start to lose coolant (which will throw an engine code), but by that point the damage is done. There was a recall for the previous generation vehicle water pumps.”
NHTSA complaint #11665383, filed 2025-06“PCV housing and lines failed. Caused pressure to build up thus shooting off the oil cap shooting oil everywhere! in addition to that it is a huge fire hazard considering the turbo is right next to it.”
NHTSA complaint #11581607, filed 2024-04Related service bulletins
- 11038090Sep 14, 2026This bulletin provides information when there is an abnormal knocking noise from the engine compartment; V6 3.0L TFSI.
- 11036938Aug 13, 2026This bulletin provides information when there is an abnormal engine knocking noise from the engine compartment; V6 3.0L TFSI.
- 11034657Jun 26, 2026This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
- 11034728Jun 10, 2026This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- 11034656Jun 4, 2026This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM.
- 11032174Apr 15, 2026This bulletin provides information when there is an abnormal engine knocking noise from the engine compartment; V6 3.0L TFSI.
- 11032173Apr 15, 2026This bulletin provides information when there is an abnormal engine knocking noise from the engine compartment; V6 3.0L TFSI.
- 11031044Mar 13, 2026This bulletin provides information when there is a Drive System Malfunction, DTCs related to Knock Sensor P0327, P0332, P0328, P0333 - V6 TFS.
- 11029368Feb 20, 2026This bulletin provides information on the use of the Audi frequencly analysis app, and where the application can be downloaded.
- 11029367Feb 20, 2026This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
Engine: other model years
Other parts of the 2018 Audi S4
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2018 Audi S4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology