Is the 2015 Mercedes-Benz Gl-Class reliable?

The 2015 Mercedes-Benz Gl-Class scores 68/100 (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 Gl-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 Gl-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 Gl-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 Gl-Class Reliability ReportKeepScore 68/100 · top failure points · buy or avoid

68/ 100

KeepScore

MODERATE RISK

Grade: C+

A supremely comfortable and capable luxury SUV, but be prepared for significant upkeep and repair costs, especially as it ages.

Full system breakdown + what I would do

Quick Facts · 2015 Mercedes-Benz Gl-Class

Scores roughly in line with adjacent Mercedes-Benz Gl-Class years — consistency that often signals a stable platform generation.
The system most likely to surface first: airmatic air suspension system (major severity).
No active NHTSA safety recalls on record — a clean recall slate for the 2015 model year.

2015 Mercedes-Benz Gl-Class: Buy or Avoid?

The 2015 Mercedes-Benz GL-Class represents a pinnacle of luxury and capability, but it's a vehicle that demands a substantial commitment to proactive maintenance and has several known high-cost failure points. While offering immense comfort and a commanding presence, buyers must proceed with caution and a healthy repair budget to truly enjoy this full-size SUV.

Biggest Strengths

Exceptional build quality and robust structure
Superior ride comfort and quiet cabin
Powerful engine options (especially V8s) and strong towing capability

2015 Mercedes-Benz Gl-Class — Known Trouble Spots

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

Airmatic Air Suspension Systemmajor

Diesel Emission System (BlueTEC)major

Electrical & Sensor Issuesmoderate

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

Safety Recalls on the 2015 Mercedes-Benz Gl-Class

No active NHTSA safety recalls on file for the 2015 Mercedes-Benz Gl-Class. Always verify with your VIN atnhtsa.gov.

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

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

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Mercedes-Benz Gl-Class — Year-by-Year Comparison

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

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

Competing 2015s Worth a Look

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 2015 Mercedes-Benz Gl-Class

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Frequently Asked Questions

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