2003 Mercedes-Benz E 3.2L Diesel · RX03 ABV

The 3.2-litre diesel E-Class is a fairly thirsty executive saloon, with real-world fuel economy typically in the mid-30s mpg, so budget around £1,500-£2,000 annually on diesel at current prices for average mileage. Road tax for a vehicle of this age and engine size sits in a higher band than modern equivalents, and insurance will likely be in group 35-40 territory given the engine capacity and performance. Servicing and parts at a Mercedes-Benz main dealer carry premium pricing, though independent specialists offer more competitive rates for this model.

At 205,000 miles, major service items such as timing chain replacement, injector overhaul, and turbo servicing are either due or overdue, each potentially costing £800-£2,000. Suspension components, identified as the top MOT failure reason across the model, typically cost £200-£500 per corner to replace properly. Estimated annual running costs including fuel, tax, insurance, and routine maintenance are likely to fall in the £2,400-£3,000 range, rising further if deferred major work becomes necessary.

Given the model-wide data flags suspension arms and engine MIL (malfunction indicator lamp) issues as the top failure causes, both areas deserve close scrutiny on RX03ABV. Have the suspension inspected for worn bushings, ball joints, and drop links, which are common on high-mileage W211 chassis. Request that any diagnostic scan be performed to check for stored fault codes, particularly around the engine management system, emissions system, and the notorious swirl flap assembly in the 3.2-litre diesel inlet manifold.

Because the failed MOTs in June 2024 and April 2023 do not list specific defects in the records provided, request the actual MOT refusal notices or test sheets from the seller or directly from DVSA to understand what was identified. Inspect the underside for oil leaks from the OM648 engine, pay particular attention to the injector leak-back rates, and check the condition of the automatic transmission fluid. Finally, examine the bodywork closely for corrosion around the arches and undertrays, as a 23-year-old executive saloon used on UK roads will have accumulated significant wear.