Checking component
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the thermostat and check it according to Checking / replacing the thermostat
- Replace the thermostat if there is any doubt about its function.
Was a fault found in the thermostat?
- YES
Refer to Verification
- NO
Refer to Replacing the engine coolant temperature (ECT) sensor