2020 Mercedes-Benz GLS 400 AMG LN Prem+exe D 4M A 2.9L Diesel · AS66 FAN

The vehicle remains roadworthy, but the maintenance trend shows a clear shift toward neglected consumable upkeep. While the car passed its most recent test in March 2026 at 36,325 miles, the tester flagged all four tyres as being close to the legal limit and showing uneven wear. This represents a significant decline from the clean records seen in 2023 and 2024, suggesting that preventative maintenance has recently been deferred. The mileage pattern is consistent with a low-useage luxury vehicle, averaging approximately 6,000 miles per year. Between the March 2023 test at 14,310 miles and the March 2026 test at 36,325 miles, the vehicle covered 22,015 miles, indicating steady but light usage. The jump of 6,576 miles between the March 2025 and 2026 tests shows that despite the low annual mileage, components are reaching their end of life faster than the expected intervals. A buyer must inspect the suspension geometry and alignment, as the edge wear noted on all tyres in 2026 often indicates incorrect tracking or worn suspension bushes. The previous advisory for thin front brake pads at 29,749 miles suggests that the braking system is now due for a comprehensive overhaul. Given the age of the vehicle and the low mileage, a physical inspection should also check for perished rubber components and brake fluid moisture, as long periods of standing can cause degradation that mileage alone does not reveal.