2009 Subaru Outback Mk3 (BP)

Early EE20 diesel engines can suffer snapped crankshafts or spun bearings, effectively destroying the engine.

Symptoms: Loud metallic knocking from the engine, Sudden loss of power...

Est. repair cost: £3,000–£6,000

The 2.5L petrol still suffers from external head-gasket leaks that eventually require an engine-out repair, showing as oil leaking onto the exhaust (burning-oil smell), coolant loss or overheating. UK MOT data records engine oil/coolant and exhaust leaks as failure areas on this generation.

Symptoms: Oil leaking onto exhaust (smell of burning oil), Coolant loss...

Est. repair cost: £1,200–£2,000

Knocks and clunks from the front end over bumps and on full-lock turns are commonly traced to worn strut top mounts or suspension bushes. Suspension is a leading MOT failure category on the Outback, so front-end knocks should be investigated at a viewing.

Symptoms: Knock or clunk from the front over bumps, Clunking when turning lock to lock...

Est. repair cost: £200–£700

UK road salt attacks the rear subframe, suspension mounts and underbody, often before the body panels look rusty. Corrosion around prescribed areas is a recorded MOT failure on this generation and can become structural if left unchecked.

Symptoms: Heavy rust scaling underneath, Corrosion advisories near suspension mounts...

Est. repair cost: £400–£1,500

The BP Outback's exhaust system rusts under UK winter salt, causing loud blowing or hissing noises and a potential MOT failure on exhaust, emissions and leaks. Noise, emissions and leaks is a recorded failure area, especially on higher-mileage examples.

Symptoms: Loud exhaust roar or hissing, Rattling from underneath the car...

Est. repair cost: £250–£600