2010 Mercedes-Benz E 3.0L Diesel · NL10 YRP

Diesel E-Class models of this generation typically return 35-45 mpg in real-world driving, though a vehicle with 208,000 miles may see reduced economy if the turbo or injectors are worn. Road tax falls in a higher band given the engine size, and insurance is likely to sit in group 38-44 depending on the specific derivative. Replacement parts including brake components, suspension arms, and electrical modules are pricier than mainstream brands, and specialist labour rates add further cost. An annual running cost of £1,400-£1,800 is a realistic estimate for a high-mileage example, accounting for higher-than-average wear-item replacement.

Begin with a cold-start check to listen for timing chain rattle, a documented weakness on the OM642 diesel engine, and watch for excessive smoke from the exhaust which could indicate turbo or injector wear. Inspect all four tyres closely, as both rear tyres have been flagged at multiple tests and a sidewall cut was noted in 2023; uneven wear can also hint at suspension or tracking issues. Test the parking brake on an incline — the 2026 failure noted efficiency below requirements, which may require caliper or cable replacement. Check that all exterior lighting works, particularly the side repeaters, as one was inoperative at the recent failure. Finally, examine the underside for oil residue consistent with the persistent leak advisory, and inspect the gearbox for smooth changes, as the 7G-Tronic automatic can develop torque converter and valve body issues at high mileage.