Check coolant level

Check coolant level  - Working on your vehicle - Maintenance and servicing - Volvo XC90 Owners Manual - Volvo XC90

The cooling system must be filled with coolant and not leak to operate at maximum efficiency.

Check the coolant level regularly. The level should be between the MAX and MIN marks on the expansion tank. The check should be made with particular thoroughness when the engine is new or when the cooling system has been drained.

Do not remove the filler cap other than for topping up with coolant. Frequent removal may prevent coolant circulation between the engine and the expansion tank during engine warm up and cooling.

    See also:

    Automatic transmission
    P (Park) Use this position when starting the engine or parking the vehicle. Never use P while the vehicle is in motion. The parking brake should also be set whenever the vehicle is parked. ...

    Immobilizer (start inhibitor)
    Each of the keys supplied with your vehicle contains a coded transponder. The code in the key is transmitted to an antenna in the ignition slot where it is compared to the code stored in the start ...

    Indicator and warning symbols
    Low oil pressure If the light comes on while driving, stop the vehicle, stop the engine immediately, and check the engine oil level. If the oil level is normal and the light stays on after ...