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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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Subaru Forester Mk2 (SG) Faults & Repair Costs
Head Gasket Failure (2.5L Engines)
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.
Coolant smell from engine bay, Oil/coolant weeping at the block join, Bubbles in the expansion tank
- Check the engine block join from underneath
- Look for white residue around the expansion tank
- Confirm if Multi-Layer Steel (MLS) gaskets have been fitted
Self-Levelling Suspension (SLS) Failure
The original rear struts leak and sag over time. Replacing them with OEM parts is prohibitively expensive in the UK.
Rear sits noticeably lower, Bouncy ride over bumps, Fluid leaks on the rear struts
- Check arch-to-tyre gap at the rear
- Look for standard spring conversions as a positive sign
- Inspect the struts for oil misting
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.