2007-2023 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated June 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2007-2023 Audi RS4 has 2 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $800 to $1,800. DIY maintenance guides at au7o.io.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2007-2023 Audi RS4 has 2 documented issues. The most frequently reported are: 4.2L V8 Carbon Buildup on Intake Valves, Carbon Buildup on Intake Valves (2.9T Twin-Turbo V6). None are rated critical, but regular maintenance is recommended.
The 2007-2023 Audi RS4 has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Audi RS4 issues range from $800 to $1,800, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
Reliability varies across model years of the Audi RS4. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2007-2023 Audi RS4 with 2 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
The B7 Audi RS4 with the high-revving 4.2L FSI V8 develops significant carbon deposits on the intake valves due to direct fuel injection. This high-performance engine is particularly affected because of its FSI system design. Repairs typically run $800-$1,500. Severity: medium.
The 2.9T twin-turbo V6 in RS4 Avant and RS5 (2018-2023) suffers from carbon buildup on intake valves due to direct injection. Similar to other Audi DI engines, oil vapors from PCV system bake onto valve backs. The twin-turbo setup and high performance accelerate carbon accumulati… Repairs typically run $1,000-$1,800. Severity: medium.
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.
