Is the 2023 Mercedes-Benz S-Class reliable?

The 2023 Mercedes-Benz S-Class scores 82/100 (B) 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 2023 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 2023 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 2023 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

2023 Mercedes-Benz S-Class Reliability ReportKeepScore 82/100 · top failure points · buy or avoid

82/ 100

KeepScore

MODERATE RISK

Grade: B

An engineering marvel, but prepare for the unique demands of maintaining a technological tour de force.

Full system breakdown + what I would do

Quick Facts · 2023 Mercedes-Benz S-Class

Scores 6 points below the strongest nearby year — the 2025 Mercedes-Benz S-Class earns a 88.
The system most likely to surface first: electrical / 48v mild-hybrid system (major severity).
No active NHTSA safety recalls on record — a clean recall slate for the 2023 model year.

2023 Mercedes-Benz S-Class: Buy or Avoid?

The 2023 Mercedes-Benz S-Class offers unparalleled luxury and cutting-edge technology, making it an exquisite driving experience. While initial build quality is generally strong, its immense technological sophistication introduces a moderate long-term risk for costly electrical and suspension issues, demanding meticulous maintenance for sustained reliability.

Biggest Strengths

Superior build quality and cabin refinement
Robust powertrain options (M256/M177)
Advanced safety and driver-assistance systems

2023 Mercedes-Benz S-Class — Known Trouble Spots

The systems that break first on the 2023 Mercedes-Benz S-Class. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Electrical / 48V Mild-Hybrid Systemmajor

Air Suspension (Airmatic/E-ABC)major

Infotainment and Digital Systemsmoderate

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

Safety Recalls on the 2023 Mercedes-Benz S-Class

No active NHTSA safety recalls on file for the 2023 Mercedes-Benz S-Class. Always verify with your VIN atnhtsa.gov.

What breaks on the 2023 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 — Year-by-Year Comparison

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 →

Competing 2023s Worth a Look

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 2023 Mercedes-Benz S-Class

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Frequently Asked Questions

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