Is the 2020 Mercedes-Benz Gls reliable?

The 2020 Mercedes-Benz Gls 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 2020 Mercedes-Benz Gls?

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 2020 Mercedes-Benz Gls?

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 2020 Mercedes-Benz Gls?

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.

HomeVehicles

Vehicles Compare Blog Get Report

Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2020 Mercedes-Benz Gls Reliability ReportC+ grade · moderate risk · system-by-system breakdown

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A superb luxury experience comes with a premium price tag for upkeep and a careful eye on its complex tech.

Full system breakdown + what I would do

Quick Facts · 2020 Mercedes-Benz Gls

The system most likely to surface first: air suspension (airmatic/e-active body control) (major severity).
No active NHTSA safety recalls on record — a clean recall slate for the 2020 model year.
Scores 4 points below the strongest nearby year — the 2022 Mercedes-Benz Gls earns a 82.

Is the 2020 Mercedes-Benz Gls Worth Buying?

The 2020 Mercedes-Benz GLS is a magnificent luxury SUV, offering an unparalleled blend of comfort and technology. However, its sophisticated systems introduce a higher level of complexity and maintenance demands than the average vehicle, leading to elevated ownership costs and a moderate risk profile for the discerning used buyer. Prepare for premium upkeep to truly enjoy its grandeur.

Biggest Strengths

Exceptional build quality and materials
Robust core engine and transmission (when maintained)
Advanced safety and driver-assist systems

What Tends to Fail First on the 2020 Mercedes-Benz Gls

The systems that break first on the 2020 Mercedes-Benz Gls. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Air Suspension (AIRMATIC/E-ACTIVE BODY CONTROL)major

48V Mild-Hybrid System (EQ Boost - GLS 450)major

MBUX Infotainment & Electrical Systemsmoderate

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

2020 Mercedes-Benz Gls Recall History

No active NHTSA safety recalls on file for the 2020 Mercedes-Benz Gls. Always verify with your VIN atnhtsa.gov.

What breaks on the 2020 Mercedes-Benz Gls?

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

OwnerKeep Passport · $499 · one-time

Just bought a 2020 Mercedes-Benz Gls? Keep it that way.

Snap a receipt — AI logs it. Build an OwnerScore. Sell with a buyer-ready Passport dossier.

Other Mercedes-Benz Gls Years to Consider

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

All Mercedes-Benz Gls years ranked →Mercedes-Benz Gls years to avoid →Mercedes-Benz Gls common problems →

2020 Mercedes-Benz Gls Alternatives

Similar class, similar year range — ranked by KeepScore.

2018 ChryslerPacifica

72/100

Relevant Products for Your 2020 Mercedes-Benz Gls

Parts and accessories matched to your 2020 Mercedes-Benz Gls

As an Amazon Associate I earn from qualifying purchases.

Frequently Asked Questions

Full Report