Is the 2015 Mercedes-Benz S-Class reliable?

The 2015 Mercedes-Benz S-Class scores 72/100 (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 2015 Mercedes-Benz S-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 2015 Mercedes-Benz S-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 2015 Mercedes-Benz S-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

2015 Mercedes-Benz S-Class Reliability ReportCommon Problems, Repair Costs & Expert Verdict

72/ 100

KeepScore

MODERATE RISK

Grade: C+

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Full system breakdown + what I would do

Quick Facts · 2015 Mercedes-Benz S-Class

No active NHTSA safety recalls on record — a clean recall slate for the 2015 model year.
Scores 6 points below the strongest nearby year — the 2016 Mercedes-Benz S-Class earns a 78.
The system most likely to surface first: airmatic suspension system (major severity).

Should You Buy the 2015 Mercedes-Benz S-Class?

The 2015 Mercedes-Benz S-Class (W222) is an automotive masterpiece of luxury, technology, and performance, but it unequivocally demands a significant commitment to its sophisticated upkeep. This isn't a car for the financially faint of heart; while generally well-engineered, its complexity means every repair is inherently expensive and specialized. Expect to invest heavily in its maintenance if you desire its continued excellence.

Biggest Strengths

Exceptional build quality and materials
Robust core engine (M278 V8) with proper maintenance
Sophisticated safety and comfort technology

Top Risk Areas

The systems that break first on the 2015 Mercedes-Benz S-Class. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

AirMATIC Suspension Systemmajor

Complex Electrical & Infotainmentmoderate

Engine Oil Leaks & Ancillariesmoderate

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 2015 Mercedes-Benz S-Class. Always verify with your VIN atnhtsa.gov.

What breaks on the 2015 Mercedes-Benz S-Class?

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

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Mercedes-Benz S-Class by Year

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

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

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Frequently Asked Questions

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