2018 Audi A4 Recalls, Complaints & Specs
1 safety recall lists the 2018 Audi A4, and owners have filed 44 complaints with NHTSA. Check your own VIN below.
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1 safety recall for the 2018 Audi A4
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Air bags: front passenger and seats
Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS)…
Remedy: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at…
44 owner complaints filed with NHTSA
Owners of the 2018 Audi A4 have filed 44 complaints with NHTSA; 1 describe a crash. The average mileage at failure in those reports is 30,500 miles. Complaints peaked in 2026 with 17 filed that year.
Most-reported components
What owners are reporting
“A vehicle diagnostic scan dated 04/15/2026 at approximately 88,502 miles showed a stored transmission electronics fault: P084100, described as “Transmission fluid pressure sensor/switch A range/perfor”
Owner complaint to NHTSA, July 2, 2026 · Power train
“A vehicle diagnostic scan dated 04/15/2026 showed electrical communication faults involving vehicle control modules. The scan showed U014100, described as “Lost Communication With Body Control Module”
Owner complaint to NHTSA, July 2, 2026 · Structure
Fuel economy and specs
EPA ratings for the 2018 Audi A4 (A4 Ultra, A4 quattro). Ranges cover every tested configuration.
| Combined | 27–31 mpg |
|---|---|
| City / Highway | 24–27 / 33–37 |
| Fuel | Premium |
| EPA class | Compact Cars |
| Engine | 4 cyl, 2 L |
| Transmission | Automatic (AM-S7); Manual 6-spd |
Compare Audi A4 model years
Recall and complaint counts for every Audi A4 model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 1995 Audi A4 | 1 | 1 |
| 1996 Audi A4 | 4 | 89 |
| 1997 Audi A4 | 6 | 98 |
| 1998 Audi A4 | 4 | 258 |
| 1999 Audi A4 | 4 | 190 |
| 2000 Audi A4 | 2 | 96 |
| 2001 Audi A4 | 1 | 131 |
| 2002 Audi A4 | 1 | 181 |
| 2003 Audi A4 | 3 | 210 |
| 2004 Audi A4 | 2 | 189 |
| 2005 Audi A4 | 3 | 219 |
| 2006 Audi A4 | 3 | 295 |
| 2007 Audi A4 | 3 | 196 |
| 2008 Audi A4 | 4 | 175 |
| 2009 Audi A4 | 2 | 120 |
| 2010 Audi A4 | 0 | 64 |
| 2011 Audi A4 | 0 | 11 |
| 2012 Audi A4 | 0 | 19 |
| 2013 Audi A4 | 0 | 24 |
| 2014 Audi A4 | 0 | 32 |
| 2015 Audi A4 | 0 | 19 |
| 2016 Audi A4 | 0 | 11 |
| 2017 Audi A4 | 1 | 55 |
| 2018 Audi A4 | 1 | 44 |
| 2019 Audi A4 | 1 | 10 |
| 2020 Audi A4 | 3 | 128 |
| 2021 Audi A4 | 4 | 11 |
| 2022 Audi A4 | 3 | 6 |
| 2023 Audi A4 | 0 | 10 |
| 2024 Audi A4 | 0 | 2 |
| 2025 Audi A4 | 0 | 1 |
Checking a specific 2018 Audi A4
How do I know if my 2018 Audi A4 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 1 campaign currently lists the 2018 Audi A4; your car may already have been repaired under it.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Audi dealer with your VIN and the NHTSA campaign number (for example 21V874000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Audi models
- A61,658 complaints
- Q51,342 complaints
- Q71,047 complaints
- A3731 complaints
- S4588 complaints
- A5325 complaints
- TT319 complaints
- A4 Allroad252 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.