Is the 2017 Mercedes-Benz Sl-Class reliable?

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

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A truly luxurious and capable convertible, but one that demands a substantial budget for its intricate, high-tech systems.

Full system breakdown + what I would do

Quick Facts · 2017 Mercedes-Benz Sl-Class

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

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

The 2017 Mercedes-Benz SL-Class offers an exquisite blend of performance and luxury, making it a compelling choice for those seeking a premium roadster. While the core mechanicals are generally robust, its sophisticated engineering, particularly the retractable hardtop and adaptive suspension systems, presents a moderate risk for high-cost repairs as it ages. Be prepared for significantly higher ownership costs compared to mainstream vehicles.

Biggest Strengths

Robust engine and transmission (if properly maintained)
Exceptional build quality and premium interior materials
High level of safety and driving assistance features

Top Risk Areas

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

Retractable Hardtop Mechanismmajor

AIRMATIC / Active Body Control (ABC) Suspensionmajor

Electrical & Infotainment Systemsmoderate

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 Sl-Class. Always verify with your VIN atnhtsa.gov.

What breaks on the 2017 Mercedes-Benz Sl-Class?

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

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Mercedes-Benz Sl-Class by Year

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

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

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Frequently Asked Questions

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