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2018 Audi S3: common problems

Owners of the 2018 Audi S3 filed 5 complaints with NHTSA, most often about powertrain and fuel/propulsion system. The maker issued 594 service bulletins for this year. Details by component below, with sources.

Key figures

Owner complaints
5
Technical service bulletins (TSB)
594

What fails most often

4321
  1. 1 Powertrain 40% of all complaints
  2. 2 Fuel/propulsion system 40% of all complaints
  3. 3 Visibility 20% of all complaints
  4. 4 Air bags 20% of all complaints
Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Engines and transmissions

US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.

Drive: AWD

Components owners complain about

ComponentOwner complaintsinvolving a crashTechnical service bulletins (TSB)
Powertrain2039
Fuel/propulsion system208
Visibility1029
Air bags109
Equipment00142
Electrical system00121
Structure0052
Suspension0043
Engine and cooling0039
Service brakes0036
Steering0033
Engine0019
Exterior lighting0015
Wheels0010

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

Comparison

By complaint count this model year ranks 1,688 of 2,102 model years in the NHTSA data (among the 20% least complained about).

On average one model year of the S3 has 3 complaints (12 years in the data). This year has 5, above average.

What to check before buying

Manufacturer service bulletins

Bulletin titles as filed with NHTSA.

NHTSA lists 594 bulletins for this year; the 12 newest are shown here.

Other years of this model

Questions and answers

What are the most common problems with the 2018 Audi S3?

Owner complaints to NHTSA most often mention: powertrain, fuel/propulsion system, visibility. Total complaints: 5. The most frequent symptoms in complaint texts: smoke, burning smell, fire (20%).

How many service bulletins (TSB) were issued for the 2018 Audi S3?

NHTSA lists 594 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2018 Audi S3 from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2018 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.