Is the 2020 Mercedes-Benz G-Class reliable?

The 2020 Mercedes-Benz G-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 2020 Mercedes-Benz G-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 2020 Mercedes-Benz G-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 2020 Mercedes-Benz G-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

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

78/ 100

KeepScore

MODERATE RISK

Grade: C+

An automotive icon with undeniable presence and capability, but its ownership experience comes with a hefty luxury tax on maintenance and repairs.

Full system breakdown + what I would do

Quick Facts · 2020 Mercedes-Benz G-Class

The system most likely to surface first: electrical/infotainment system (moderate severity).
No active NHTSA safety recalls on record — a clean recall slate for the 2020 model year.
Scores 3 points below the strongest nearby year — the 2022 Mercedes-Benz G-Class earns a 81.

Is the 2020 Mercedes-Benz G-Class Worth Buying?

The 2020 Mercedes-Benz G-Class is an iconic, exceptionally capable, and luxurious SUV, but it demands significant financial commitment beyond its purchase price. While its core mechanicals are generally robust, owners must be prepared for the elevated cost of maintenance and potential repairs inherent to a complex, high-performance luxury vehicle, making it a prudent choice only for those with deep pockets.

Biggest Strengths

Robust body-on-frame construction
Powerful and proven M176/M177 V8 engines
Excellent build quality and material choices

What Tends to Fail First on the 2020 Mercedes-Benz G-Class

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

Electrical/Infotainment Systemmoderate

Adaptive Suspension Componentsmajor

Brake System Wearmoderate

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

2020 Mercedes-Benz G-Class Recall History

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

What breaks on the 2020 Mercedes-Benz G-Class?

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

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Other Mercedes-Benz G-Class Years to Consider

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

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

2020 Mercedes-Benz G-Class Alternatives

Similar class, similar year range — ranked by KeepScore.

2018 ChryslerPacifica

72/100

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Frequently Asked Questions

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