Volvo XC90 Owner's Manual page 580

MAINTENANCE AND SERVICE
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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.
14 Some vehicles do not have any light bulbs.
15 An authorized Volvo workshop is recommended.
LED (Light Emitting Diode)
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578
CAUTION
• Do not ingest the contents. May cause
damage to organs (kidneys).
• Use premixed coolant according to Vol-
vo's recommendations. If concentrated
coolant is used, make sure that the cool-
ant mixture is 50% coolant and 50%
water of acceptable quality.
• Do not mix different types of coolant.
• To help ensure sufficient corrosion pro-
tection in the system, only use new cool-
ant 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.
Related information
• Engine compartment overview (p. 574)
• Coolant specifications (p. 631)
Replacing bulbs
Bulb types vary depending on model and equip-
14
ment level. If a light bulb breaks, it can be
replaced by following the procedure shown in
the Owner's Manual.
If you are experiencing problems with any lights
other than light bulbs, contact a workshop
If there is a problem with an LED
entire lamp unit will normally need to be
replaced.
NOTE
For information on lights not mentioned in the
Owner's Manual, contact a Volvo dealer or a
certified Volvo service technician.
WARNING
The vehicle electrical system must be in igni-
tion mode 0 when bulbs are replaced.
CAUTION
Never touch the bulb glass with your bare fin-
gers. Grease and oils from your fingers vapor-
ize in the heat and will leave a deposit on the
reflector, which may damage it.
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light, the