Head Gasket Failure (2.5L Engines)
SeriousEngineThe 2.5L EJ25 engine in the SG XT is prone to external coolant and oil leaks from the head gaskets, eventually leading to overheating.
Est. Repair Cost: £1,200–£2,000
Reliability GuideCommon Problems with the
Common Problems with the
2004 Subaru Forester Mk2 (SG)
We've identified 2 known issues that can affect the 2004 Subaru Forester Mk2 (SG). 1 of these are serious faults that could be expensive to repair.
2
Known Issues
1
Serious
1
Moderate
0
Minor
All Known Issues
Self-Levelling Suspension (SLS) Failure
ModerateSuspension & ChassisThe original rear struts leak and sag over time. Replacing them with OEM parts is prohibitively expensive in the UK.
Est. Repair Cost: £400–£800
Buying Tips for 2004 Subaru Forester Mk2 (SG)
- ✓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.