Audi RS6 C5 for Sale

What to Look For

• Turbo failure if oil changes not kept up
• Electrical issues with aging wiring harnesses
• Timing belt/chain service critical and expensive
• Carbon buildup on intake valves (direct injection engines)
• DRC (Dynamic Ride Control) shock failures — very expensive
• Differential failures under hard use
• Turbo wastegate rattle on twin-turbo V8s
• Twin-turbo V8 — turbo failures are catastrophically expensive
• Air suspension failures
• Running costs are supercar-level

Pre-Purchase Checklist

• Full service history with timing belt/chain records
• Check turbo for shaft play and oil leaks
• Inspect CV boots and joints
• Test quattro system — listen for binding on tight turns
• Check for electrical faults with VCDS/OBDeleven scan
• Check DRC shocks for leaks if equipped
• Carbon buildup inspection on DI engines
• Listen for turbo wastegate rattle
• Verify differential and transfer case condition
• Check brake rotor condition — expensive to replace

Useful Resources

• https://www.audisport.net/
• https://quattroworld.com/

Frequently Asked Questions

Is the Audi RS6 C5 a good investment?

With an average score of 44/100, the Audi RS6 C5 is currently a speculative investment. Prices may still be declining.

What is a fair price for a Audi RS6 C5?

The median asking price is €29,531, with listings ranging from €11,999 to €130,000. Final transaction prices may differ depending on condition, mileage, and provenance.

How many Audi RS6 C5 are for sale?

PistonAlpha currently tracks 63 active Audi RS6 C5 listings from dealers and auctions across Europe, updated daily.

What should I look for when buying a Audi RS6 C5?

Key areas to inspect: Turbo failure if oil changes not kept up; Electrical issues with aging wiring harnesses; Timing belt/chain service critical and expensive; Carbon buildup on intake valves (direct injection engines). A pre-purchase inspection by a marque specialist is highly recommended.

How have Audi RS6 C5 prices changed over time?

Prices have declined from €89,600 (2002) to €35,000 (2025), a decline of 61%. Values peaked at €89,600 in 2002 and have since corrected 61%.