IsItAGoodCar
Reliability Guide

Common Problems with the
2000 Subaru Outback Mk2 (BH)

We've identified 4 known issues that can affect the 2000 Subaru Outback Mk2 (BH). 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 (EJ25 Engine)

SeriousEngine

The 2.5L EJ25 engine often develops external oil and coolant leaks from the head gaskets, or internal leaks leading to overheating. Fault reports and UK MOT data both record engine oil/coolant leaks and exhaust leaks as recurring issues on this generation.

Est. Repair Cost: £1,200–£1,800
Warning Signs:

Overheating on hills, Oil weeping from cylinder heads, Sweet smell from exhaust

What to Inspect:
  • Check the lower block for wet oil or blue/green crust
  • Confirm if the radiator is original (plastic tanks often crack)
Verified by IsItAGoodCar Research TeamUpdated

Rear Wheel Bearing Wear

ModerateSuspension & Chassis

A common failure on this generation, often starting as a faint drone that many owners ignore until it becomes a roar. Suspension and wheel-bearing faults are a regularly recorded MOT area on the BH Outback.

Est. Repair Cost: £250–£450 per side
Warning Signs:

Humming noise that increases with speed, Vibration through the floor

What to Inspect:
  • Drive the car at motorway speeds
  • Check for play in the rear wheels
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 the second most common MOT failure area on the Outback, so front-end knocks should be taken seriously on a viewing.

Est. Repair Cost: £200–£600
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

Exhaust System Corrosion and Leaks

ModerateExhaust & Emissions

The BH Outback's exhaust system rusts under UK winter salt, producing loud blowing or rattling noises and a potential MOT failure on exhaust, emissions and leaks. This is a recorded failure area on the Outback and becomes more likely as mileage builds.

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

Loud exhaust roar or rattling, 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 2000 Subaru Outback Mk2 (BH)

  • If looking at a 2.5L, assume the head gaskets will need doing by 100,000 miles if there is no record of replacement.
  • Check for "torque bind" by making tight circles in a car park; a hopping sensation indicates AWD center differential issues.
  • The 3.0L H6 (H6-3.0) is much more reliable regarding head gaskets but significantly thirstier.