Home / AUDI / S4

Audi S4 Problems

The Audi S4 is a high-performance variant of the A4 sedan and wagon, offering turbocharged or supercharged power with Quattro all-wheel drive. With 1,442 complaints and no recorded deaths, the S4 delivers genuine sports car performance in a practical package. Different generations used various engines, from turbo-fives to supercharged V6s, each with distinct characteristics and reliability profiles. The S4 rewards careful ownership but punishes neglect.

1,442
Total Complaints
29
Total Recalls
25
Model Years
0
Reported Deaths
!

Years to Avoid

These years have significantly more complaints than average.

2010 2001 2000
✓

Best Years

These years have the fewest reported problems.

1992 1994 1995

Common Problem Categories

Electrical System 300
Power Train 208
Exterior Lighting 132
Service Brakes, Hydraulic 122
Tires 102

Complaints by Model Year

All Model Years

Year ↓ Complaints Recalls Crashes Fires Rating
2022 2 1 0 0 Good
2021 4 4 0 0 Good
2020 68 3 0 0 Average
2019 6 1 0 0 Good
2018 18 2 0 0 Good
2015 2 1 0 0 Good
2014 46 1 0 0 Average
2013 68 1 0 0 Average
2012 54 1 0 4 Average
2011 68 1 0 0 Average
2010 146 0 4 0 Avoid
2009 0 2 0 0 Good
2008 8 2 0 0 Good
2007 42 2 6 8 Average
2006 74 2 0 0 Average
2005 108 2 8 0 Below Average
2004 74 0 0 4 Average
2003 2 0 0 0 Good
2002 62 1 0 0 Average
2001 184 1 10 0 Avoid
2000 342 1 18 0 Avoid
1995 2 0 0 0 Good
1994 16 0 0 0 Good
1993 36 0 0 0 Average
1992 10 0 0 0 Good

Audi S4 Years to Avoid

The 2000-2002 B5 S4 accumulated the most complaints with twin-turbo 2.7L V6 issues including turbo failures, timing belt service requirements, and engine sludging on early builds. The turbos are expensive to replace ($3,000+ for the pair). Cooling system and electrical components also require attention.

Best Audi S4 Years

The 1995-1997 C4 S4, rare in the US, used a bulletproof turbocharged inline-five. The 2010-2012 B8 S4 with the supercharged 3.0T V6 has proven more reliable than turbocharged predecessors. The supercharger is durable and the engine is well-engineered.

Frequently Asked Questions

Why are B5 S4 turbos so expensive?

The B5 S4 uses twin K03/K04 turbos mounted in a tight engine bay. Labor to access them is extensive, often requiring engine removal. Many owners upgrade to larger RS4 turbos during replacement, increasing costs further.

What maintenance does the S4 require?

All S4s require premium fuel and synthetic oil. Turbocharged versions need timing belt replacement every 75,000 miles. The B8 supercharged models require supercharger service around 100,000 miles. Budget $2,000-4,000 annually for maintenance.

Is the S4 a reliable daily driver?

The B8/B8.5 supercharged S4 (2010-2016) is reasonably reliable for daily use with proper maintenance. Earlier twin-turbo models require more attention and deeper pockets. A well-maintained S4 of any generation can be dependable.

How fast is the S4?

The B8 S4 reaches 60 mph in about 4.5 seconds. Earlier B5 models were slightly slower stock but responded dramatically to tuning. The S4 consistently outperforms its BMW and Mercedes competitors in straight-line acceleration.

Should I buy an S4 or a regular A4?

The S4 costs significantly more to maintain and repair. If you want the performance and will budget for ownership, the S4 is rewarding. For economical transportation, the A4 with the 2.0T offers adequate performance with lower costs.