🇩🇪 Deutsch
Audi · Mid-Size · 2008–2010

Audi RS6 C6

Weaknesses, engine ratings and buying advice

★★★★★
3.0 / 5.0 · Based on 1 engine variants

Body Variants

The Audi RS6 C6 is available as Limousine and Avant — choose your body type for specific insurance data:

Limousine
1 Engines
view Limousine →
Avant
1 Engines
view Avant →

Generations

Engine Overview

The Audi RS6 C6 is available with one engine variant at 579 hp.

RS6 · Benziner· 579 PS
2008 2010
Be Careful 6 weaknesses

The Audi RS6 (Benziner, 579 PS) has the BSM (5.0L V10 BiTurbo) — rated: "Be Careful", 6 known weaknesses.

Vehicle Weaknesses

WeaknessCost
✖Air suspension compressor failure

Vehicles with the optional air suspension (AAS) frequently suffer compressor failures that can cause the car to sink completely. Typical from 100,000 km.

Symptoms: Car sinks on one side or completely, 'Suspension system fault' warning, compressor runs continuously
from 100,000 km
Ad air springsupercharger Audi A6 C6 4FAAS supercharger A6 4Fair spring Audi S6 C6
 High
✖DRC suspension control valves rattle and leak

The DRC hydraulic suspension on the RS6 C6 is highly problematic: control valves rattle audibly and dampers develop leaks. The 15 bar hydraulic system requires dealer-level special tooling for repairs.

Symptoms: Rattling from the suspension especially over bumps, oil marks under the vehicle, unsettled handling
from 70,000 km
Ad DRC shock absorber RS6 C6Hydraulikdamper Audi RS6 4FDynamic Ride Control Ventil RS6 C6
 High
!Control arms worn by high vehicle weight

The vehicle weight of up to two tonnes leads to increased wear across the entire wheel suspension. Control arms are typically the first components that need replacing.

Symptoms: Knocking over bumps, poor cornering behaviour, steering shimmy at higher speeds
from 120,000 km
Ad control arm Audi S6 C6 4F frontcontrol arm A6 4F V10 complete
 High
!Front control arms wear prematurely

The high vehicle weight of the RS6 C6 causes above-average wear of front control arm bushings. Typical problem resulting from heavy weight combined with spirited driving.

Symptoms: Knocking from the front axle, audible bushing wear, uneven tyre wear
from 80,000 km
Ad control arm Audi RS6 C6 frontLenkerbuchsen A6 4F RS6Dreieckslenker RS6 4F
 Medium
NHTSA Owner Complaints
Above Average
3 complaints · 2006–2011
Airbags
2
Seat Belts
1

Top Reported Issues

⚠ Airbags (2 complaints)
⚠ Seat Belts (1 complaints)
Source: NHTSA (nhtsa.gov) · 2026-03

Alternatives

Same Segment

VW Passat CC I

Mittelklasse (2008–2012)

Same Segment

Ford Mondeo BA7

Mittelklasse (2007–2014)

Same Segment

Honda Accord CU

Mittelklasse (2007–2012)

Same Segment

Mazda 6 GH

Mittelklasse (2007–2012)

Same Segment

Toyota Camry XV40

Mittelklasse (2007–2011)

Same Segment

Volvo V70 III

Mittelklasse (2007–2016)

Known Problems and Issues

A total of 17 weaknesses have been documented for the Audi RS6 C6 (2008–2010) — 6 engine-related and 11 vehicle-related. Typical issues affect Suspension, Brakes, Electronics, Rust.

What to watch out for with the Audi RS6? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Audi RS6 C6 have? +
The Audi RS6 C6 has 6 known engine weaknesses and 11 vehicle weaknesses.
What should I look for when buying a used Audi RS6 C6? +
faq.watch_a_none
Which engine is recommended? +
Be careful: BSM (5.0L V10 BiTurbo). No engine is rated 'Good Choice'. The most fun to drive is the BSM (5.0L V10 BiTurbo).
Which Audi RS6 C6 engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Audi RS6 C6 — rated: "Legendary!". {description} The C6 RS6 as a saloon is the rare variant: most buyers chose the Avant. Same V10 BiTurbo, same rumble — but without the practical load floor. One owner, despite oil leaks and engine removal, calls it the greatest car he ever had. Below 4,000 rpm a composed cruiser; above that, a high-performance unit that wants to be warm — wait for 95°C oil temperature. The V10 sound is more muted through the turbos than expected, but with a sports exhaust it's deep and emphatic.
Is the Audi RS6 C6 worth buying used? +
The Audi RS6 C6 requires careful consideration — choosing the right engine variant is crucial.
What horsepower variants are available for the Audi RS6 C6? +
The Audi RS6 C6 is available with engine variants from 579 to 579 hp. Petrol: BSM (5.0L V10 BiTurbo).

Last updated: February 2026 · All information without guarantee