IsItAGoodCar
Reliability Guide

Common Problems with the
2007 Subaru Outback Mk3 (BP)

We've identified 4 known issues that can affect the 2007 Subaru Outback Mk3 (BP). 1 of these are serious faults that could be expensive to repair.

4
Known Issues
1
Serious
3
Moderate
0
Minor

All Known Issues

Head Gasket Failure (2.5L Petrol)

SeriousEngine

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.

Est. Repair Cost: £1,200–£2,000
Warning Signs:

Oil leaking onto exhaust (smell of burning oil), Coolant loss, Overheating

What to Inspect:
  • Inspect the underside of the engine for leaks
  • Look for bubbles in the expansion tank
Verified by IsItAGoodCar Research TeamUpdated

Front Suspension Knocking (Strut Mounts, Bushes)

ModerateSuspension & Chassis

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.

Est. Repair Cost: £200–£700
Warning Signs:

Knock or clunk from the front over bumps, Clunking when turning lock to lock, Worn strut top mounts or bushes

What to Inspect:
  • Drive over speed bumps listening for front-end knocks
  • Turn the steering lock to lock and listen underneath
  • Ask whether strut mounts or bushes have been replaced
Verified by IsItAGoodCar Research TeamUpdated

Rear Subframe and Underbody Corrosion

ModerateBodywork & Rust

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.

Est. Repair Cost: £400–£1,500
Warning Signs:

Heavy rust scaling underneath, Corrosion advisories near suspension mounts, Seized suspension bolts

What to Inspect:
  • Inspect the rear subframe on a ramp if possible
  • Read past MOT corrosion advisories closely
  • Check for fresh underseal hiding flaky metal
Verified by IsItAGoodCar Research TeamUpdated

Exhaust System Corrosion and Leaks

ModerateExhaust & Emissions

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.

Est. Repair Cost: £250–£600
Warning Signs:

Loud exhaust roar or hissing, Rattling from underneath the car, Failed MOT on exhaust, emissions or leaks

What to Inspect:
  • Listen for an exhaust blow with the engine cold
  • Inspect the silencer and pipes for rust holes
  • Check MOT history for repeated exhaust advisories
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2007 Subaru Outback Mk3 (BP)

  • Treat early Boxer Diesel (2.0D) models with extreme caution; they are prone to catastrophic crankshaft failure.
  • Check the operation of the self-levelling rear suspension; if it sags, it is expensive to fix with genuine parts.
  • Listen for front CV joint clicking on full lock, as the boots often split and let in grit.
20062008
Check a 2007 Subaru Outback Mk3 (BP) by Registration