2017 Mercedes-Benz GLS 3.0L Diesel · S3 COB

The vehicle maintains a roadworthy status, though the maintenance trend indicates a reactive approach to basic consumable upkeep. The most recent test in September 2025 at 100,448 miles passed but flagged advisories for both the offside rear and nearside front tyres being worn to the legal limit and showing uneven wear. This follows a failure in February 2024 where the vehicle failed at 91,053 miles due to insufficient tread depth on both rear tyres. While the core mechanical components appear stable, the recurring issues with tyres suggest the owner often defers replacement until a failure point is reached. At 100,448 miles, the Mercedes-Benz has averaged approximately 11,160 miles per year, which aligns with standard usage for a luxury SUV of this age. The data shows a significant spike in usage between March 2023 (79,112 miles) and October 2024 (94,241 miles), where the vehicle covered over 15,000 miles in just seventeen months. However, usage has since moderated, with roughly 6,200 miles recorded between the October 2024 test and the September 2025 test. This consistent mileage profile suggests the vehicle is in regular use rather than sitting stationary for long periods. A buyer must prioritize an inspection of the alignment and suspension geometry, as the uneven edge wear noted in the 2025 advisories often indicates worn suspension bushes or incorrect tracking. Given the high mileage and weight, a thorough check of the air suspension system and brake components is essential to ensure no hidden leaks or degradation exists. Additionally, the third row seatbelts should be physically tested to ensure they retract fully and lock correctly, as they were previously uninspected or obstructed during the 2024 testing cycle.