UK Buyer Reliability Guide2 Known Faults Documented

Subaru Forester Mk2 (SG) Common Problems & Reliability

Many consider the SG the high-water mark for the Forester. While the 2.0L is sturdy, the 2.5L XT models bring higher performance along with greater head gasket and fuel consumption concerns.

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Generation Periods
2
Known Issues
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Critical Faults
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Moderate Issues

Select a Model Year Period

Detailed fault breakdown, symptoms, and estimated repair bills by production year.

Most Common Subaru Forester Mk2 (SG) Faults & Repair Costs

High Risk

Head Gasket Failure (2.5L Engines)

Est. Cost£1,200–£2,000

The 2.5L EJ25 engine in the SG XT is prone to external coolant and oil leaks from the head gaskets, eventually leading to overheating.

Warning Signs:

Coolant smell from engine bay, Oil/coolant weeping at the block join, Bubbles in the expansion tank

Moderate Risk

Self-Levelling Suspension (SLS) Failure

Est. Cost£400–£800

The original rear struts leak and sag over time. Replacing them with OEM parts is prohibitively expensive in the UK.

Warning Signs:

Rear sits noticeably lower, Bouncy ride over bumps, Fluid leaks on the rear struts

Essential Pre-Purchase Step

Buying a used Subaru Forester Mk2 (SG)? Always check for hidden finance and write-off history.

Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.

Inspection Checklist for Subaru Forester Mk2 (SG) Buyers

Avoid 2.5 XT models with no history of head gasket or cambelt work unless the price reflects the risk.
Check for the "saggy butt" look, indicating failed self-levelling rear suspension.
Wind noise from the door gussets (mirrors) is common and can be fixed with a simple seal replacement.