Audi · Wagon · 2003–2006
Audi S4 B6 Avant
Weaknesses, engine ratings and buying advice
★★★★★
1.0 / 5.0 · Based on 1 engine variants Engine Overview
The Audi S4 B6 Avant is available with one engine variant at 344 hp.
S4
2003 2005
Stay Away! 8 weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Control arms and ball joints wear The front control arms wear accelerated by the S4's high weight. Ball joint play is a typical MOT failure point. Full replacement often required at 200,000 km. Symptoms: Knocking and banging over surface irregularities, unsettled handling, steering flutter from 150,000 km | Medium |
Frequently Asked Questions
What problems and weaknesses does the Audi S4 B6 Avant have? +
The Audi S4 B6 as Avant has 13 known weaknesses, 5 vehicle-related.
Which engine is recommended? +
None of the available engines are rated 'Good Choice'. Stay Away!!
Is the Audi S4 B6 Avant worth buying used? +
Caution is advised with the Audi S4 B6 Avant — 1 of 1 engine variants are rated 'Stay Away!'.
Last updated: February 2026 · All information without guarantee