THE WEEKLY DRIVER

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Reliability Database
Mercedes-Benz

GLS-Class

Full-Size SUV
Best Engine ❌ Avoid (1.7)
2 Generations
6 Engines Rated
179 Total Complaints
Engine Ratings
4 recommended 1 caution 1 avoid

Generation Timeline

2013-2019 X166
2 engines
87 complaints 🔥 11
3.0L 6-cyl ✅ Recommended (4.8)
→
2020-2025 X167
4 engines
92 complaints 🔥 3
3.0L 6-cyl ❌ Avoid (1.7)
→
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