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2021 Audi Q3: common problems

Owners of the 2021 Audi Q3 filed 15 complaints with NHTSA, most often about fuel/propulsion system and electrical system. The maker issued 853 service bulletins for this year. Details by component below, with sources.

Key figures

Owner complaints
15
involving a crash
2
Technical service bulletins (TSB)
853
Audi Q3 2021: 3D model with the “Fuel/propulsion system” area highlighted — the most complained-about component
Yellow marks the “Fuel/propulsion system” area, the component owners complain about most for this year. Illustrative only. 3D model: 3DCars4U, CC Attribution.

What fails most often

87654321
  1. 1 Fuel/propulsion system 27% of all complaints
  2. 2 Electrical system 20% of all complaints
  3. 3 Engine 20% of all complaints
  4. 4 Seat belts 13% of all complaints
  5. 5 Structure 7% of all complaints
  6. 6 Steering 7% of all complaints
  7. 7 Exterior lighting 7% of all complaints
  8. 8 Fuel system 7% 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

Symptoms owners describe

How many of the 15 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

Components owners complain about

ComponentOwner complaintsinvolving a crashTechnical service bulletins (TSB)
Fuel/propulsion system4010
Electrical system30250
Engine3025
Seat belts214
Structure10105
Steering1038
Exterior lighting1014
Fuel system1010
Tires107
Lane departure115
Seats113
Forward collision avoidance102
Vehicle speed control101
Equipment00213

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 1,349 of 2,102 model years in the NHTSA data (among the 36% least complained about).

On average one model year of the Q3 has 15 complaints (12 years in the data). This year has 15, about average.

What to check before buying

Manufacturer service bulletins

Bulletin titles as filed with NHTSA.

NHTSA lists 853 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 2021 Audi Q3?

Owner complaints to NHTSA most often mention: fuel/propulsion system, electrical system, engine. Total complaints: 15. The most frequent symptoms in complaint texts: headlights and tail lights (13%), stalls while driving (13%), warning lights, check engine (13%).

How many service bulletins (TSB) were issued for the 2021 Audi Q3?

NHTSA lists 853 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 2021 Audi Q3 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 2021 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.