2010 Audi A4 2.0L Diesel · ML10 AAO

The 2.0-litre TDI diesel engine in this A4 should return around 50–55 mpg in real-world mixed driving, which remains competitive even against modern hybrids for high-mileage users. Road tax for a 2010 diesel of this specification typically falls into a relatively high VED band, so budget accordingly — confirm the exact band using the registration document. Insurance is likely to sit in group 20–25 depending on trim, which is moderate for an executive saloon.

Maintenance costs are the main consideration. Audi parts and labour tend to be pricier than mainstream brands, and a car at 131k miles will be approaching common replacement items such as clutches (if manual), dual-mass flywheels, water pumps, and suspension bushes. Realistically, annual maintenance including tyres could easily run £600–£900 depending on what is required, and a major item like a timing belt replacement could add £500–£700 when due. Overall estimated annual running cost is approximately £1,400–£1,800 including tax, insurance, fuel, and maintenance.

Start with a thorough inspection of the steering system, as the 2023 MOT recorded play in the nearside front steering rack inner joint. Lift the front wheels if possible and check for free play; excessive movement or clonking over bumps could indicate the rack needs replacement, which is a costly job on these vehicles. Also check all suspension components — top mounts, control arm bushes, and anti-roll bar links are common wear items on high-mileage A4s and align with the model's aggregate failure data showing suspension arm and coil spring issues.

Tyres deserve close scrutiny given the recurring advisories. Uneven or rapid edge wear on the fronts often points to worn suspension bushes or geometry out of alignment. Inspect the rear tyres for cracking or perishing as flagged in 2025, as this can indicate the car has been standing or the tyres are simply old — check the DOT date code on the sidewall. Also examine the brake discs and pads, as these will be the third or fourth set by now and are a likely near-term replacement. Finally, on a 2.0 TDI of this age, check for oil leaks from the cam chain area and turbo, and inspect the EGR valve and DPF for signs of soot build-up — these are known weak points on early Common Rail TDI engines.