Is the 2017 Mercedes-Benz S-Class reliable?

The 2017 Mercedes-Benz S-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 2017 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 2017 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 2017 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

2017 Mercedes-Benz S-Class Reliability ReportCommon Problems, Repair Costs & Expert Verdict

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A pinnacle of luxury and technology, but its sophistication comes with a premium price tag for long-term reliability and maintenance.

Full system breakdown + what I would do

Quick Facts · 2017 Mercedes-Benz S-Class

No active NHTSA safety recalls on record — a clean recall slate for the 2017 model year.
Outscores the 2015 Mercedes-Benz S-Class by 6 points — one of the stronger nearby years to consider.
The system most likely to surface first: airmatic/abc suspension system (major severity).

Should You Buy the 2017 Mercedes-Benz S-Class?

The 2017 Mercedes-Benz S-Class offers an unparalleled luxury experience and robust core components, but its sophisticated technology and complex systems introduce a moderate risk for high-cost repairs as it ages. While a well-maintained example can be a rewarding ownership, expect significant investment in maintenance and be prepared for potential high-ticket component failures if an inspection isn't thorough.

Biggest Strengths

Exceptional build quality and materials
Robust engine and transmission (if properly maintained)
Advanced safety and driver-assistance features

Top Risk Areas

The systems that break first on the 2017 Mercedes-Benz S-Class. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

AIRMATIC/ABC Suspension Systemmajor

Electrical and Infotainment Systemmoderate

Engine Oil Leaks (M278 V8)moderate

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 2017 Mercedes-Benz S-Class. Always verify with your VIN atnhtsa.gov.

What breaks on the 2017 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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