2008 BMW 5 Series 2.5L Diesel · OV08 FHT

Real-world fuel economy on the 2993cc diesel is usually in the mid-30s to low-40s mpg depending on use, with CO2 outputs that historically placed the 5 Series in a higher VED band than modern cars — budget around £300+ for annual road tax on a 2008 plate. Insurance group ratings for this generation sit in the upper brackets, so premiums will be higher than smaller saloons. Combined with diesel-specific maintenance (DPF, EGR, injectors) and the higher-mileage wear items, realistic annual running costs including fuel, tax, insurance and maintenance are likely to be £1,400-£1,800.

Start with a physical check of all four brake discs — the December 2024 advisory flagged wear, pitting and scoring on both fronts and rears, so they should be inspected for lip, thickness and any pulsing under braking. Inspect the tyres closely for uneven shoulder wear, as a nearside front tyre was flagged as worn close to the legal limit and worn on the edge in October 2021. Beyond the MOT record, examine the underside for oil leaks from the 3.0d engine (particularly the rear main and valve cover gasket), check the condition of the timing chain for rattle on cold start, and confirm the DPF is not in limp mode by checking for warning lights and live data.