RecallMyCar

2018 Audi S4 Recalls, Complaints & Specs

2 safety recalls list the 2018 Audi S4, and owners have filed 7 complaints with NHTSA. Check your own VIN below.

2
safety recalls
7
owner complaints to NHTSA
24
MPG combined (EPA)

2 safety recalls for the 2018 Audi S4

Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.

  1. Air bags: front passenger and seats

    NHTSA 21V874000 Reported 208,332 vehicles potentially affected Volkswagen Group of America, Inc.

    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…

  2. Inflator module (air bags) and occupant classification (air bags)

    NHTSA 19V547000 Reported 145,337 vehicles potentially affected Volkswagen Group of America, Inc.

    Volkswagen Group of America, Inc. (Audi) is recalling certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad vehicles. Oxidation on the Passenger Occupant Detection System (PODS) connecting cable may cause the software to…

    Remedy: Audi will notify owners, and dealers will install cable ties to the harness, free of charge. The recall began September 9, 2019. Owners may contact Volkswagen customer service at 1-800-893-5298. Audi's number for this…

7 owner complaints filed with NHTSA

Owners of the 2018 Audi S4 have filed 7 complaints with NHTSA. The average mileage at failure in those reports is 3,700 miles. Complaints peaked in 2018 with 2 filed that year.

Most-reported components

What owners are reporting

“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”

Owner complaint to NHTSA, June 6, 2025 · Engine

“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)”

Owner complaint to NHTSA, March 13, 2025 · Engine

Fuel economy and specs

EPA ratings for the 2018 Audi S4. Ranges cover every tested configuration.

Combined24 mpg
City / Highway21 / 30
FuelPremium
EPA classCompact Cars
Engine6 cyl, 3 L
TransmissionAutomatic (AM-S8)

Compare Audi S4 model years

Recall and complaint counts for every Audi S4 model year in NHTSA's database.

Model yearRecallsComplaints
1989 Audi S410
1990 Audi S410
1991 Audi S410
1992 Audi S425
1993 Audi S4216
1994 Audi S427
1995 Audi S421
1996 Audi S410
2000 Audi S41143
2001 Audi S4187
2002 Audi S4122
2003 Audi S411
2004 Audi S4129
2005 Audi S4243
2006 Audi S4230
2007 Audi S4213
2008 Audi S424
2009 Audi S420
2010 Audi S4060
2011 Audi S4126
2012 Audi S4122
2013 Audi S4133
2014 Audi S4117
2015 Audi S411
2018 Audi S427
2019 Audi S412
2020 Audi S4316
2021 Audi S442
2022 Audi S411

Checking a specific 2018 Audi S4

How do I know if my 2018 Audi S4 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. 2 campaigns currently list the 2018 Audi S4; your car may already have been repaired under some of them.

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 19V547000).

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

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.