Reliability Guide

Common Problems with the
1997 Subaru Forester Mk1 (SF)

The launch year for the original Forester. These earliest models are now well into the age range where structural corrosion becomes a critical issue, particularly in the rear strut towers and front subframe.

What changed for 1997

  • Launch of the original Forester with Impreza mechanicals
  • Introduction of 2.0L naturally aspirated engine
  • Symmetrical AWD as standard

Common MOT watch-outs

  • !Rear strut tower corrosion from inside out
  • !Front subframe "U-brace" rot
  • !Rear wheel bearing failure
2
Known Issues
1
Serious
1
Moderate
0
Minor

All Known Issues

Rear Strut Tower and Chassis Corrosion

SeriousBodywork & Rust

UK road salt attacks the rear strut towers and the "U-brace" front subframe, often rotting them from the inside out.

Est. Repair Cost: £500–£2,500
Warning Signs:

Corrosion in the boot area, Knocking from rear suspension, MOT failure for structural rust

What to Inspect:
  • Pull back the boot carpet to see the towers
  • Check the front subframe for flaky or holed metal
  • Inspect brake lines for heavy corrosion
Verified by IsItAGoodCar Research Team

Rear Wheel Bearing Failure

ModerateSuspension & Chassis

The SF is known for chewing through rear wheel bearings, which can be a difficult and labor-intensive job to replace if the hub bolts are seized.

Est. Repair Cost: £200–£400 per side
Warning Signs:

Low-frequency drone from the rear, Noise changes when cornering, Vibration at speed

What to Inspect:
  • Listen for humming on a smooth road
  • Check for play in the rear wheels when jacked up
Verified by IsItAGoodCar Research Team

Buying Tips for 1997 Subaru Forester Mk1 (SF)

  • Pull back the boot carpet to check the rear strut towers
  • Inspect the front subframe for flaky or holed metal
  • Listen for rear wheel bearing drone at speed