IsItAGoodCar

Common Problems with the
2019 Subaru Forester Mk5 (SK)

Early UK e-Boxer cars are worth checking carefully for software updates and consistent hybrid-system behaviour.

2
Known Issues
0
Serious
2
Moderate
0
Minor

The 2019 period has 1 more issue than the Subaru Forester Mk5 (SK) average across all year periods.

All Known Issues

Thermo Control Valve Failure

ModerateCooling System

SK Foresters can trigger multiple warning lights and poor cabin heat when the thermo control valve sticks or fails internally.

Estimated cost: £400–£900Affects: 2019–2023

Typical symptoms

  • •Engine management warning
  • •Poor heater performance
  • •Cooling fan running unexpectedly

What to inspect before you buy

  • ✓Make sure the heater gets hot quickly
  • ✓Scan for stored cooling-system faults
  • ✓Ask whether the valve has already been replaced

Lineartronic CVT Hesitation or Judder

ModerateGearbox & Transmission

Later CVTs are generally better, but neglected fluid changes can still lead to shuddering, hesitation and expensive transmission diagnostics.

Estimated cost: £300–£1,800Affects: 2018–2023Often appears around: 50,000+ miles

Typical symptoms

  • •Shudder under light throttle
  • •Delayed response pulling away
  • •Transmission warning messages

What to inspect before you buy

  • ✓Drive at low speed in traffic-like conditions
  • ✓Check for smooth response on inclines
  • ✓Look for documented CVT servicing rather than verbal assurances

Buying Tips for the 2019 Subaru Forester Mk5 (SK)

  • ✓Watch for warning lights after repeated stop-start operation on the test drive.
2018 Subaru Forester Mk5 (SK)2020–2023 Subaru Forester Mk5 (SK)

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Other Subaru Forester Mk5 (SK) Year Periods

201820192020–2023

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