Is the 2009 Mercedes-Benz E-Class reliable?

The 2009 Mercedes-Benz E-Class scores 78/100 (C+) on OwnerKeep's reliability index, which places it in the moderate risk category. See the full report for the specific strengths and failure points.

What are the common problems with the 2009 Mercedes-Benz E-Class?

See the Common Issues section above for the top failure areas reported by real owners, with typical mileage ranges where problems start showing up.

How much does it cost to maintain a 2009 Mercedes-Benz E-Class?

Expected maintenance costs depend heavily on age, mileage and how well the vehicle was kept up. Run the full report for a year-by-year cost outlook.

What should I check before buying a 2009 Mercedes-Benz E-Class?

Focus on the top risk areas flagged in this report, review service history, and verify the vehicle is not inside one of the mileage danger zones listed above.

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Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2009 Mercedes-Benz E-Class Reliability ReportCommon Problems, Repair Costs & Expert Verdict

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A premium sedan offering superb value, provided you are prepared for its complex, potentially expensive maintenance demands.

Full system breakdown + what I would do

Quick Facts · 2009 Mercedes-Benz E-Class

No active NHTSA safety recalls on record — a clean recall slate for the 2009 model year.
Outscores the 2008 Mercedes-Benz E-Class by 6 points — one of the stronger nearby years to consider.
The system most likely to surface first: airmatic air suspension (major severity).

Should You Buy the 2009 Mercedes-Benz E-Class?

The 2009 Mercedes-Benz E-Class offers a luxurious driving experience at an accessible price point, but it demands diligent preventative maintenance and a healthy repair budget. While fundamentally robust, specific high-cost components can lead to financial pain if not properly inspected or maintained, making it a purchase that requires careful consideration.

Biggest Strengths

Excellent build quality and material robustness (excluding specific weak points)
Strong, refined powertrains (especially M273 V8 and OM642 Diesel)
Exceptional ride comfort and safety features

Top Risk Areas

The systems that break first on the 2009 Mercedes-Benz E-Class. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Airmatic Air Suspensionmajor

7G-Tronic Transmission (722.9)major

Engine Oil Leaks & Intake Manifoldmoderate

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

No active NHTSA safety recalls on file for the 2009 Mercedes-Benz E-Class. Always verify with your VIN atnhtsa.gov.

What breaks on the 2009 Mercedes-Benz E-Class?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Mercedes-Benz E-Class by Year

Compare KeepScores across nearby years of the Mercedes-Benz E-Class. Click any year for its full report.

All Mercedes-Benz E-Class years ranked →Mercedes-Benz E-Class years to avoid →Mercedes-Benz E-Class common problems →

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Frequently Asked Questions

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