Servicing The Climate Control System - Volvo XC 90 Owner's Manual

MAINTENANCE AND SERVICE
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Lift off the rubber strip by pressing it inward
in the engine compartment.
Detach the flap in the plastic cover by folding
out the release catch and turning the flap
upward.
Screw off the cap and top up with coolant.
The level must lie between the MIN and
MAX marks on the expansion tank.
Reinstall the parts in reverse order.
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IMPORTANT
•
A high content of chlorine, chlorides and
other salts may cause corrosion in the
cooling system.
•
Always use coolant with anti-corrosion
agent as recommended by Volvo.
•
Ensure that the coolant mixture is 50%
water and 50% coolant.
•
Mix the coolant with approved quality tap
water. In the event of any doubt about
water quality, used ready-mixed coolant in
accordance with Volvo recommendations.
•
When changing coolant/replacing cool-
ing system components, flush the cooling
system clean with approved quality tap
water or flush with ready-mixed coolant.
•
The engine must only be run with a well-
filled cooling system. Otherwise, tempera-
tures that are too high may occur result-
ing in the risk of damage (cracks) in the
cylinder head.
Related information
•
Coolant — specifications (p. 530)

Servicing the climate control system

The air conditioning system must only be serv-
iced and repaired by an authorised workshop.
Troubleshooting and repair
The air conditioning system contains fluorescent
tracing agents. Ultraviolet light must be used dur-
ing leak detection.
Volvo recommends that you contact an author-
ised Volvo workshop.
Cars with R134a refrigerant
WARNING
The air conditioning system contains pressur-
ised refrigerant R134a. This system must only
be serviced and repaired by an authorised
workshop.
Cars with R1234yf refrigerant
WARNING
The air conditioning system contains pressur-
ised refrigerant R1234yf. In accordance with
SAE J2845 (Technician Training for Safe
Service and Containment of Refrigerants
Used in Mobile A/C System), service and
repair of the refrigerant system must only be
performed by trained and certified technicians
in order to ensure the safety of the system.