2018 Audi S4 Problems

Below Average Complaints

Real NHTSA owner complaints for the 2018 Audi S4.

20152019
Complaints
9
Crashes
0
Fires
0
Injuries
0
Fatalities
—
Recalls
2

Worst 2018 Audi S4 Problems

Top 3 most-reported issues with average mileage at failure.

#14 complaints

Engine Problems

#21 complaints

Transmission / Drivetrain

#31 complaints

Brakes

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All Problems by Category

Every NHTSA complaint category for the 2018 Audi S4.

Engine Problems
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Transmission / Drivetrain
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Brakes
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Body Structure
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Suspension Failures
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Unintended Acceleration
1
complaints
Crashes
—
Fires
—
Avg Miles
—

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2018 Audi S4. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2018 Audi S4

2 NHTSA recall campaigns affecting ~353,669 vehicles.

21V874000Air Bags:sensor:occupant Classification:front Passenger · Seats
~208,332 affected

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) may have a contact fault, causing the software to misdiagnose a malfunction and disable the passenger air bag.

19V547000Air Bags:frontal:passenger Side:inflator Module · Air Bags:sensor:occupant Classification
~145,337 affected

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 misdiagnose a malfunction and disable the passenger air bag.

Other Audi S4 Years

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2018 Audi S4 — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2018 Audi S4 reliable?
Verdict: Below Average Complaints. The 2018 Audi S4 has 9 NHTSA complaints, 0 crash-related, and 2 recall campaigns. The most common issue is Engine Problems with 4 complaints. Source: NHTSA via VinItel.
What are common problems with the 2018 Audi S4?
Top reported problems: Engine Problems (4 complaints); Transmission / Drivetrain (1 complaints); Brakes (1 complaints). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
Does the 2018 Audi S4 have any recalls?
Yes — 2 NHTSA recall campaigns affecting an estimated 353,669 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2018 Audi S4?
Fewer complaints than typical for this model. That's a good sign, but every individual car is different — the VIN still tells you what happened to this specific one.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Audi S4 reliability report with year-by-year comparison and generation analysis.

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