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Reliability Database

Audi

Engine Reliability & Known Problems

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

28 Models
68 Engines Rated
52 Generations
12,927 NHTSA Complaints
Engine Ratings Overview
43 recommended 19 caution 6 avoid

Midsize Sedan

7 models
A4
4 generations · 8 engines
2002-20052006-20082009-20162017-2025
6 recommended 2 caution
A4/S4
1 generation · 1 engine
2007
1 recommended
A4/S4 Avant
1 generation · 1 engine
2007
1 recommended
A4/S4 Cabriolet
2 generations · 2 engines
20052007
1 recommended 1 caution
A5
2 generations · 5 engines
2008-20162018-2025
5 recommended
A6
4 generations · 8 engines
2000-20042005-20112012-20182019-2025
4 recommended 4 caution
A6/S6
1 generation · 1 engine
2007
1 recommended

Luxury Sedan

5 models
A8L
4 generations · 0 engines
2004201320142015
Allroad
5 generations · 3 engines
20012002200320042015
3 recommended
Audi E-Tron
1 generation · 0 engines
2022
Audi E-Tron Sportback
1 generation · 0 engines
2022
e-tron
1 generation · 0 engines
2019-2023

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 · 4 engines
2015-20182019-2025
3 recommended 1 caution
Q5
2 generations · 8 engines
2009-20172018-2025
4 recommended 2 caution 2 avoid

Luxury SUV

4 models
Audi Q4 E-Tron
1 generation · 0 engines
2023
Audi Q4 Sportback E-Tron
1 generation · 0 engines
2023
Q4 e-tron
1 generation · 0 engines
2022-2025
Q6 Sportback E-Tron
1 generation · 0 engines
2025

Midsize SUV

3 models
Audi Q7
1 generation · 2 engines
2023
2 recommended
Q7
2 generations · 10 engines
2007-20152017-2025
6 recommended 4 caution
Q8
1 generation · 1 engine
2019-2025
1 caution

Full-Size Sedan

2 models
A7
2 generations · 3 engines
2012-20182019-2025
2 recommended 1 avoid
A8
4 generations · 3 engines
2000-20032004-20102011-20182019-2025
2 recommended 1 caution

Compact Sedan

1 model
A3
2 generations · 3 engines
2006-20132015-2020
2 recommended 1 avoid

Sports Car

1 model
TT
2 generations · 0 engines
2000-20062008-2014
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