2001 Mercedes ML 3.2L Petrol · YJO 7

The 3.2-litre petrol V6 in the ML is a relatively thirsty unit by modern standards, and owners should realistically expect fuel economy in the low 20s mpg in mixed driving, dropping further under load. Road tax for a petrol vehicle of this age and engine size will fall into a higher bracket than equivalent diesels, and insurance is likely to sit in a mid-to-high group given the vehicle's size and performance. Typical maintenance costs for the ML include premium parts pricing through Mercedes-Benz dealerships, though independent German specialists can reduce labour costs substantially.

The estimated annual running cost, factoring in fuel, tax, insurance, and maintenance provision, is likely to fall in the region of £2,200-£2,800. This is notably higher than average family SUVs of comparable age due to the engine size and specialist servicing requirements. Set aside a contingency fund for potential suspension or electrical repairs, which are commonly reported on W163-generation MLs approaching this mileage bracket.

With no recorded MOT defects, the inspection cannot rely on test history alone and must focus on known W163 ML weak points. The aggregate model data flags drive shaft joints, anti-roll bar components, and tyres as the most common MOT failure areas, so these should be examined visually and by hand for wear and play. The 3.2-litre petrol engine should be checked for oil leaks from the timing chain area, coolant leaks, and smooth running across the rev range, while the automatic transmission should be tested for smooth shifts both warm and cold.

Given the 151,205-mile odometer reading, pay particular attention to suspension components including coil springs, shock absorbers, and any air suspension system fitted to higher-spec variants. Inspect the bodywork for rust around wheel arches, sills, and the rear tailgate — common areas for corrosion on early 2000s Mercedes SUVs. Verify all electrical systems work, including the sunroof, climate control, and central locking, as wiring faults are a frequent complaint on this generation. A compression test or at minimum a diagnostic scan is advisable given the engine's age and mileage.