Oil Leaks from Valve Covers or Oil Pan

Over time, the seals for the valve covers or the oil pan can degrade, leading to oil leaks. These leaks can be minor drips or more significant seeps. Estimated repair cost: $400 - $1,200.

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2017 Mercedes-Benz GLS-Class Maintenance guide

Name: Maintenance dataset for 2017 Mercedes-Benz GLS-Class
Creator: Carfocal

v1.0Updated Jun 14, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2017 Mercedes-Benz GLS-Class presents a strong reliability profile with no reported recalls or complaints, earning an 'Excellent' public reliability verdict. Preventative care should focus on the air suspension system and regular fluid changes to maintain its luxury SUV capabilities.

View Critical Issue: Air Suspension System Malfunctions

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Reliability Score

Est. Annual Maintenance Cost

$300 - $600

TSBs & Recalls

0 TSBs | 0 Recalls

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Key Takeaways

Excellent reliability with no reported recalls or complaints.
Focus on preventative maintenance for the air suspension system.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance