2009 Audi A6 Reliability ReportKeepScore 68/100 · top failure points · buy or avoid
Quick Facts · 2009 Audi A6
- Scores 10 points below the strongest nearby year — the 2008 Audi A6 earns a 78.
- The system most likely to surface first: electrical / mmi system (major severity).
- No active NHTSA safety recalls on record — a clean recall slate for the 2009 model year.
2009 Audi A6: Buy or Avoid?
The 2009 Audi A6 offers a captivating blend of luxury and performance for an enticing used car price, but it's far from a 'set it and forget it' proposition. This vehicle demands an owner who appreciates German engineering and is prepared to invest in meticulous maintenance to mitigate the known risks associated with its complex electronics and sophisticated powertrains. If you seek a refined driving experience and are financially ready for its upkeep, it can be a rewarding, albeit cautious, choice.
The 2009 Audi A6 is a compelling luxury sedan for those on a budget, but it demands an owner who is financially prepared for its sophisticated needs. While offering a truly premium experience and robust core engineering, the potential for expensive electrical and engine-related repairs is significant. Only purchase…
Best Model Years
2010-2011 (later C6 models with the 3.0L TFSI engine generally show fewer issues)
Years to Avoid
2005-2007 (earlier C6 generation models had more initial design quirks and MMI issues)
Biggest Strengths
- Robust build quality and materials
- Sophisticated quattro all-wheel drive system
- Engaging driving dynamics and comfortable ride
2009 Audi A6 — Known Trouble Spots
The systems that tend to fail first on the 2009 Audi A6, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
Failures in the Multi Media Interface (MMI) control unit, parasitic battery drains, and various sensor malfunctions are common. These issues can manifest as inoperable navigation, audio, or climate controls, and can be notoriously diffic…
The direct-injection FSI engines, particularly the 3.2L V6, are highly susceptible to carbon buildup on intake valves, leading to misfires, reduced power, and poor fuel economy. PCV valve failures are also common, contributing to oil con…
Wear and tear on control arm bushings, tie rod ends, and wheel bearings are common, especially on models with larger wheels or driven aggressively. Air suspension components (compressor, struts) on equipped models are also known to fail,…
2009 Audi A6 Mileage Danger Zones
The mileage windows when the 2009 Audi A6 most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the A6 is still relatively fresh. Focus on ensuring all scheduled maintenance has been completed, including brake fluid flush and any minor software updates. Any unusual electrical quirks should be immediately addressed…
Maintenance Zone
This mileage often marks the need for a major service, including spark plugs and potentially a carbon cleaning on FSI engines. Suspension components like control arm bushings may start showing initial signs of wear. Budget for new tires…
Elevated Risk Zone
Here, the risk of more significant, expensive repairs escalates. MMI system failures become more common, and if not already addressed, carbon buildup will severely impact performance. Look for signs of oil leaks or persistent check engin…
High Risk Zone
At this point, the A6 will likely have accumulated several prior repairs. Comprehensive service records are non-negotiable. Expect to replace major wear items like alternator, starter, fuel pump, or major suspension components. Be prepar…
2009 Audi A6 Ownership Cost Outlook
What it typically costs to keep the 2009 Audi A6 on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$800-1,200
Moderate Repairs
$1,000-2,500 occasionally
How Long Does the 2009 Audi A6 Last?
Focus on finding a 2009 A6 with under 100,000 miles, as the likelihood of needing major, costly repairs escalates significantly beyond that point without exceptional prior maintenance.
What 2009 Audi A6 Owners Actually Say
What Owners Love
- Exceptional interior quality and luxurious cabin appointments
- Confident and capable quattro all-wheel drive system
- Refined, quiet, and comfortable ride quality on long journeys
- Strong engine performance and satisfying handling dynamics
Common Frustrations
- Frustrating and expensive MMI system failures and electrical gremlins
- High costs for routine maintenance and unexpected repairs
- Significant carbon buildup issues on FSI engines impacting performance
- Poor fuel economy, especially with the 3.2L V6 and 4.2L V8
Who Should Buy the 2009 Audi A6?
Best For
- Luxury car enthusiasts on a budget seeking premium features for less
- Owners who are comfortable with higher maintenance costs and have a dedicated repair fund
- Individuals who are mechanically inclined or have access to a trusted independent Audi specialist
Not Ideal For
- Budget-conscious buyers who cannot afford unexpected, expensive repairs
- First-time luxury car owners unprepared for complex vehicle systems
How the 2009 Audi A6 Compares to Rivals
The A6 offers a more engaging and luxurious experience than its Japanese rivals, but it falls short in long-term, low-cost reliability. It's generally on par with its German counterparts regarding complexity and maintenance demands, often excelling in interior refinement over…
More Reliable Than
- Early generation Mercedes-Benz E-Class (W211) for some interior quality aspects
- Older BMW 7-Series (E65/E66) in terms of general reliability complexity
Comparable To
- BMW 5-Series (E60 generation)
- Mercedes-Benz E-Class (W211 generation)
Safety Recalls on the 2009 Audi A6
No active NHTSA safety recalls on file for the 2009 Audi A6. Always verify with your VIN atnhtsa.gov.
What breaks on the 2009 Audi A6?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
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Audi A6 — Year-by-Year Comparison
Compare KeepScores across nearby years of the Audi A6. Click any year for its full report.
Competing 2009s Worth a Look
Similar class, similar year range — ranked by KeepScore.
Relevant Products for Your 2009 Audi A6
Parts and accessories matched to your 2009 Audi A6
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Frequently Asked Questions
Just bought a 2009 Audi A6? Keep it that way.
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