Volvo XC90: Maintenance and service / Refilling coolant
When refilling coolant, follow the instructions on the package. Never fill
the cooling system with only water. The risk of freezing is increased with too low
or too high amounts of coolant.
If there is coolant under the vehicle, smoke from the cooling system, or if more
than 2 liters (about 2 quarts) of coolant has been added to the system, there could
be something wrong with the cooling system and starting the vehicle could damage
the engine. Call a tow truck and do not attempt to start the engine.
WARNING
The coolant may be very hot. Never unscrew the cap when the coolant is
hot. If coolant must be filled, unscrew the expansion tank cap slowly to relieve
overpressure.

Coolant expansion tank



Lift the rubber strip by pressing
it inward into the engine compartment.
Remove the plastic cover by folding
out the catch and lifting the cover upward.
Unscrew the expansion tank cap and
fill coolant as needed. The level should be between the MIN and MAX
marks on the expansion tank.
CAUTION
- Do not ingest the contents. May cause damage to organs (kidneys).
- Use premixed coolant according to Volvo's recommendations. If concentrated
coolant is used, make sure that the coolant mixture is 50% coolant and 50% water
of acceptable quality.
- Do not mix different types of coolant.
- To help ensure sufficient corrosion protection in the system, only
use new coolant when replacing larger components in the cooling system.
- Never run the engine unless the cooling system is properly filled.
An improperly filled cooling system could lead to high temperatures and cracks
in the cylinder heads.
- High levels of chlorine, chlorides and other salts may cause corrosion
in the cooling system.
The engine oil level is monitored by an electronic oil level sensor.
Viewing oil level in the center display
Example of the oil level graphic in the center display
The oil level can be viewed using the electronic oil level gauge in the center
display once the vehicle has been started...
The starter battery is used to start the electrical system and power the starter
motor and other electrical equipment in the vehicle. The vehicle has a single-pole
electrical system that uses the chassis and engine mount as conductors...
Other information:
The Park Assist Cameras (PAC1) can display a 360° panoramic view
as well as separate views for each of the four cameras: rear, front, left and right.
360° view*
The location of the cameras and their approximate fields of
vision.
The 360° view function activates all Park Assist Cameras and all four
sides of the vehicle are shown in the center display at once to help the driver
see what is a..
(Option/accessory)
The seats can be heated for added comfort for the driver and passengers in
cold weather.
Activating and deactivating the heated rear seats from the front seats*
Tap the symbol in the center
of the climate bar to open Climate view in the center display.
Select the Rear climate tab.
Tap the seat heating button
repeatedly to select one of the four levels: Off, High, Medi..