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Reliability Database

Audi

Engine Reliability & Known Problems

Based on 12,927 NHTSA complaints. Updated April 2026.

28 Models
116 Engines Rated
52 Generations
12,927 NHTSA Complaints
Engine Ratings Overview
46 recommended 46 caution 24 avoid

Midsize Sedan

7 models
A4
4 generations · 12 engines
2002-20052006-20082009-20162017-2025
6 recommended 3 caution 3 avoid
A4/S4
1 generation · 2 engines
2007
1 recommended 1 avoid
A4/S4 Avant
1 generation · 2 engines
2007
1 recommended 1 caution
A4/S4 Cabriolet
2 generations · 4 engines
20052007
1 recommended 1 caution 2 avoid
A5
2 generations · 7 engines
2008-20162018-2025
5 recommended 1 caution 1 avoid
A6
4 generations · 12 engines
2000-20042005-20112012-20182019-2025
5 recommended 6 caution 1 avoid
A6/S6
1 generation · 2 engines
2007
1 recommended 1 caution

Luxury Sedan

5 models
A8L
4 generations · 4 engines
2004201320142015
3 caution 1 avoid
Allroad
5 generations · 8 engines
20012002200320042015
3 recommended 2 caution 3 avoid
Audi E-Tron
1 generation · 1 engine
2022
1 avoid
Audi E-Tron Sportback
1 generation · 1 engine
2022
1 avoid
e-tron
1 generation · 1 engine
2019-2023
1 avoid

Compact SUV

5 models
Audi Q3
1 generation · 1 engine
2022
1 caution
Audi Q5
1 generation · 2 engines
2022
1 caution 1 avoid
Audi Q5 Sportback
1 generation · 2 engines
2022
1 caution 1 avoid
Q3
2 generations · 5 engines
2015-20182019-2025
4 recommended 1 caution
Q5
2 generations · 10 engines
2009-20172018-2025
4 recommended 4 caution 2 avoid

Luxury SUV

4 models
Audi Q4 E-Tron
1 generation · 1 engine
2023
1 caution
Audi Q4 Sportback E-Tron
1 generation · 1 engine
2023
1 caution
Q4 e-tron
1 generation · 1 engine
2022-2025
1 caution
Q6 Sportback E-Tron
1 generation · 1 engine
2025
1 caution

Midsize SUV

3 models
Audi Q7
1 generation · 2 engines
2023
2 recommended
Q7
2 generations · 13 engines
2007-20152017-2025
7 recommended 6 caution
Q8
1 generation · 2 engines
2019-2025
2 caution

Full-Size Sedan

2 models
A7
2 generations · 5 engines
2012-20182019-2025
2 recommended 2 caution 1 avoid
A8
4 generations · 7 engines
2000-20032004-20102011-20182019-2025
2 recommended 5 caution

Compact Sedan

1 model
A3
2 generations · 5 engines
2006-20132015-2020
2 recommended 1 caution 2 avoid

Sports Car

1 model
TT
2 generations · 2 engines
2000-20062008-2014
2 avoid
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