2001 Audi S8 Problems: 1 Known Issue
2001 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2001 Audi S8 has 1 documented issue, with 1 rated critical. The most serious is D2 4.2 V8 Timing Belt and Tensioner Service (Interference Engine) ($1,000-$2,500 repair). Across all issues with published estimates, repair costs range from $1,000 to $2,500. DIY maintenance guides at au7o.io.
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Frequently Asked Questions
What are the most common Audi S8 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2001 Audi S8 has 1 documented issue. The documented issue is: D2 4.2 V8 Timing Belt and Tensioner Service (Interference Engine). Of these, 1 is rated critical and should be addressed promptly.
Is the Audi S8 reliable?
The 2001 Audi S8 has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: D2 4.2 V8 Timing Belt and Tensioner Service (Interference Engine). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Audi S8 problems?
Repair costs for known Audi S8 issues range from $1,000 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, D2 4.2 V8 Timing Belt and Tensioner Service (Interference Engine), typically costs $1,000-$2,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2001-2003 Audi S8 D2 4.2 V8 Timing Belt and Tensioner Service (Interference Engine)?
The first-generation D2 S8 uses the 4.2L 40-valve V8, an interference engine driven by a timing belt (intake cams) plus chains (exhaust cams). The belt is a maintenance-critical, age-and-mileage-limited item: Audi specifies replacement around 105k miles, but many specialists reco… Repairs typically run $1,000-$2,500. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.