CSR

Audi · NHTSA safety record

2018 Audi S5

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

Owners have filed 26 safety complaints about the 2018 Audi S5 with the US government. Of those, 2 describe a crash, 1 person was injured and no death is recorded. 2 recall campaigns are open against it, covering the seats and the air bags.

The most complained-about system is the engine, named in 9 complaints, 35% of the total. The typical failure was reported at 4,750 miles, the median across the 8 complaints that gave an odometer reading.

Compiled from NHTSA's complaint, recall and investigation files · Covers February 2018 to December 2025 · How this is counted

What is on file

26 complaints on file

26

Complaints

2

Describe a crash

0

Mention fire

1

People injured

0

Deaths

A complaint is an unverified account by the person who filed it, not a finding of fault. One complaint is one ODI number, which is how NHTSA counts them.

A recall is the manufacturer conceding a defect, and the repair is free. Whether one covers your particular car is a question only its VIN can answer, because a campaign covers a production range rather than a model year.

Which system owners named

Complaints naming each system
ENGINE 9 · 35%
UNKNOWN OR OTHER 8 · 31%
AIR BAGS 3 · 12%
VISIBILITY/WIPER 3 · 12%
ELECTRICAL SYSTEM 2 · 8%
PARKING BRAKE 2 · 8%
POWER TRAIN 2 · 8%
SEAT BELTS 2 · 8%
ELECTRONIC STABILITY CONTROL (ESC) 1 · 4%
FORWARD COLLISION AVOIDANCE 1 · 4%
FUEL/PROPULSION SYSTEM 1 · 4%
LANE DEPARTURE 1 · 4%
0 4 8

Red marks a system with a recall campaign against it. One complaint can name several systems, so these add up to more than 26.

When the complaints arrived

By the year NHTSA received them

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2025 at 6.

8 6 4 2
18 19 20 22 23 24 25

This is the year the complaint was filed, not the year the failure happened. The range runs from 2018 to 2025.

Crash test ratings

NHTSA New Car Assessment Program

NHTSA has not crash tested the 2018 Audi S5. Its New Car Assessment Program tests a selection of each year's vehicles and does not reach motorcycles, heavy trucks, motorhomes or most low-volume models, so an absence here says nothing about how the vehicle would perform. It is not a low score.

What owners have reported about this vehicle is below, and it is a different question: a crash test measures what happens to the people inside in a controlled impact, while a complaint records what broke during ordinary use.

Recall campaigns

2 on file

SEATS

21V874000 · November 10, 2021

The defect
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.
The risk
A disabled passenger air bag increases the risk of injury in the event of a crash.
The 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 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new remedy.

Volkswagen Group of America, Inc. · up to 208,332 vehicles across all model years covered

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

19V547000 · July 24, 2019

The defect
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.
The risk
A disabled passenger air bag increases the risk of injury in the event of a crash.
The 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 recall is 74D9.

Volkswagen Group of America, Inc. · up to 145,337 vehicles across all model years covered

In owners’ own words

Quoted from the complaint file

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

FUEL/PROPULSION SYSTEM

1 injured

•Parking Brake Issue: The parking brake failed to disengage after stopping, leading to an accident. •Intoxalock Device Malfunction: The Intoxalock device malfunctioned with incessant beeping and intermittent error messages, causing distractions. •Previous Complaints and Lack of Resolution: Previous complaints about the parking brake and Intoxalock device were dismissed without proper investigation or resolution. •Parking Brake Failure: The parking brake failed to hold the car, leading to uncontrollable movement and collision with an obstacle. •Intoxalock Device Malfunction: The Intoxalock device malfunctioned, causing distractions and contributing to the accident. •Financial Burden and Lack

NHTSA complaint 11621015, quoted in part. Filed by an owner and not verified by NHTSA or by us.

STRUCTURE:BODY

crash · towed · 200 miles

FORWARD COLLISION WARNING AND MITIGATION SYSTEM (PRE SENSE CITY) DID NOT WORK TO PREVENT AN ACCIDENT WHERE I REAR ENDED A CAR THAT WAS STATIONARY. NO WARNING OR ACTION WAS TAKEN BY THE CAR. POLICE REPORT ATTACHED.

NHTSA complaint 11067158. Filed by an owner and not verified by NHTSA or by us.

PARKING BRAKE

crash · towed · 7,000 miles

TL* THE CONTACT OWNS A 2018 AUDI S5. THE CONTACT STATED THAT THE GEARBOX AND PARKING BRAKE RELEASED WHILE THE VEHICLE WAS IN PARK. AS A RESULT, THE VEHICLE ROLLED AWAY AND CRASHED INTO A CONCRETE BARRIER. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WERE NO INJURIES SUSTAINED. THE VEHICLE WAS TOWED TO AUDI GREENWICH (181 WEST PUTNAM AVENUE, GREENWICH, CT 06830, (203) 661-1800), BUT THE FAILURE COULD NOT BE DIAGNOSED. THE BODY DAMAGE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 7,000. *JS

NHTSA complaint 11194999. Filed by an owner and not verified by NHTSA or by us.

ENGINE
An Audi dealer has just diagnosed my 2018 S5 Cabriolet Prestige with vacuum system contamination caused by water pump failure. I had requested the diagnostic due to small coolant leaks on the engine and loss of coolant in the expansion tank. No warning lights and no overheating yet. Not yet aware of any loss of performance. I have been advised it is unsafe to continue driving the car. Dealer has quoted me $7800 estimate to repair the car. Purchased the car in 2021 as a Certified Pre Owned vehicle, and it now has about 84K miles on the OD.

NHTSA complaint 11704929. Filed by an owner and not verified by NHTSA or by us.

AIR BAGS
Component/System: Passenger Occupant Detection System (PODS) / Airbag system — Recall 74E3 / NHTSA 21V874. What Happened: The passenger airbag may switch off even when the seat is occupied due to a faulty PODS wiring connection. The warning message “Passenger Airbag Off” appears with a chime. This is an active safety recall that was issued before I purchased the vehicle, but the recall was not disclosed at the time of sale. Safety Risk: If the system shuts off the airbag incorrectly, the passenger may have no airbag protection in a crash, creating a serious risk of injury or death. Inspection Availability: Vehicle is available for inspection. I live on the Big Island of Hawaii, where there

NHTSA complaint 11703772, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ENGINE
VEHICLE Year: 2018 Make: Audi Model: S5 Prestige Trim: 3.0 TFSI (EA839 V6 Turbo) Mileage: 86,000 Engine Code: CWGD COMPLAINT TITLE Latent Engine Failure – EA839 Piston Skirt + Rocker Arm Defects – Dealer Broke Engine Cover, Left Wiring Harness Dangling – Audi Denies Despite Having DIY Receipts For Maintenance DESCRIPTION At 86,000 miles, my 2018 Audi S5 Prestige suffered internal engine failure from metal debris and cylinder wall scoring. Dealer borescope showed: Metal in oil filter (bearing + non-ferrous “other metal”) Deep scoring on multiple cylinders No check engine light. No power loss yet. Still drivable — but seizure is imminent. DEALER NEGLIGENCE AT [Audi Of Chantilly] (Penske

NHTSA complaint 11699716, quoted in part. Filed by an owner and not verified by NHTSA or by us.

UNKNOWN OR OTHER
Vacuum line has coolant due to water pump failure and over heating of engine. Whole water pump and coolant reservoir plus hoses need to be replaced before additional damage to vehicle.

NHTSA complaint 11678414. Filed by an owner and not verified by NHTSA or by us.

ENGINE
To Whom It May Concern, I am submitting this complaint to report a mechanical issue with my 2018 Audi S5 Sportback. Around 57,000 miles, the engine began making a noticeable ticking noise, which I have been advised is due to failing rocker arms. This issue has raised serious concerns, as it can lead to engine misfires, reduced performance, and potentially catastrophic engine damage if left unresolved. The problem appeared without warning, despite regular maintenance and no prior engine alerts. I believe this may be a defect affecting other Audi models with similar engines, and I urge the NHTSA to investigate whether a recall or technical service bulletin should be issued. Vehicle

NHTSA complaint 11672422, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ENGINE
While driving, my Audi overheated randomly, started smoking, had to be towed. Had 72,800 miles, was serviced by Audi at 70k miles and all prior recommended services. Towed to Audi dealership, quoted 29k in engine repairs, Audi could never tell me why engine overheated. Would not cover any expense because “i didn’t buy it there”. Insurance denied two claims because Audi reported it as engine failure although they couldn’t prove what happened to cause the heating, said it was one of the worst engine overheating they had seen. Prior to overheating, service driver system popped up for the first time. Temperature gauges were normal. Will not start or run since. No accountability taken by Audi at

NHTSA complaint 11647150, quoted in part. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Audi S5

Model year Complaints Recalls Deaths
2025 11 2 —
2020 25 4 —
2012 10 1 —
2011 8 1 —

Other 2018 Audi models

Every Audi on this site — 155 vehicles.

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. How many repair attempts it takes, and how long you have to file, is set by the state you bought in and by nothing on this page.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst