Mercedes-Benz GLS Problems: 4 Issues Every Owner Should Know

What are the most common Mercedes-Benz GLS problems?

According to Au7o's analysis of 3,550+ owner reports, the 2017-2025 Mercedes-Benz GLS has 4 documented issues. The most frequently reported are: AIRMATIC Air Suspension Failure, 9G-Tronic Harsh Shift, Panoramic Sunroof Water Leak. Of these, 1 is rated critical and should be addressed promptly.

Is the Mercedes-Benz GLS reliable?

The 2017-2025 Mercedes-Benz GLS has 4 known issues documented across 3,550+ owner reports. 1 issue is rated critical: AIRMATIC Air Suspension Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Mercedes-Benz GLS problems?

Repair costs for known Mercedes-Benz GLS issues range from $100 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, AIRMATIC Air Suspension Failure, typically costs $800-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Mercedes-Benz GLS is the most reliable?

Reliability varies across model years of the Mercedes-Benz GLS. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2017-2025 Mercedes-Benz GLS with 4 documented issues from 3,550+ owner reports.

Mercedes-Benz GLS Problems: 4 Issues Every Owner Should Know

All 4 Known Issues

When Issues Typically Appear

Other Mercedes-Benz Models

Frequently Asked Questions

What are the most common Mercedes-Benz GLS problems?

Is the Mercedes-Benz GLS reliable?

How much does it cost to fix common Mercedes-Benz GLS problems?

What year Mercedes-Benz GLS is the most reliable?