2011 Audi A4 2.0L Diesel · WM11 OHW

The 2.0 TDI diesel engine fitted to this A4 typically returns around 55-65 mpg on a mix of motorway and town driving, depending on driving style. Road tax for a 2011 2.0-litre diesel A4 usually falls into band D or E, costing roughly £30-£135 per year depending on exact CO2 output. Insurance for a 15-year-old Audi A4 diesel typically sits in groups 20-28, so expect premiums in the £400-£700 range for an average driver.

Routine maintenance on this generation of A4 tends to be moderately priced if you use an independent specialist rather than a main dealer. An interim service is typically £150-£220, while a major service with cambelt (if due) can run £500-£800 including the part. Brake disc and pad replacement on both axles — which may be imminent on this car — would cost £350-£500 at an independent garage. The annual running cost estimate of £1,200-£1,500 reflects the higher-than-average mileage and likely component wear identified at recent MOTs.

Based on the MOT history, suspension components should be the primary focus of any physical inspection. The front upper suspension arm pins and bushes on both nearside and offside have been flagged twice across consecutive tests, culminating in a failure in May 2026. On inspection, jack the car up and check for play in the front suspension by hand. Listen for knocking noises over speed bumps and uneven surfaces — worn bushes often produce audible clonks.

The braking system also warrants close attention. The April 2025 failure cited front and rear brake pads below 1.5mm, plus pitted/scored front and rear brake discs. Even though the car passed in May 2026, no brake-related advisories were recorded, which raises a question: were the brakes replaced or did the tester simply not flag them? Visually inspect pad thickness through the wheel spokes and check disc surfaces for lipping and corrosion. The rear shock absorber advisory for oil misting should be re-examined — any dripping or wet residue on the shock body confirms replacement is needed.

General checks for a high-mileage diesel A4 should include a thorough look underneath for oil leaks from the sump, cam chain tensioner area, and turbo. Inspect the intercooler hoses for splits and check the EGR valve for carbon build-up if access allows. The tyres should also be examined — the 2025 failure noted an offside front tyre below legal tread, so confirm current tyres have adequate depth and are matching brands across each axle.