Volvo S80 Owner's Manual page 222

Coolant
Checking and topping up the coolant
When topping up the coolant, follow the
instructions on the packaging. It is important
that the mixture of coolant concentrate and
water is correct for the prevailing weather con-
ditions. Never top up with water only. The risk
of freezing increases with both too little and too
much coolant concentrate. For capacities, see
page 272.
06 Maintenance and specifications
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 rec-
ommendations.
•
When changing coolant/replacing cool-
ing system components, flush the cool-
ing 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. High tempera-
tures can occur, causing a risk of
damage (cracks) to the cylinder head.
For capacities and for standards regarding
water quality, see page 272.
Check the coolant regularly
The level must lie between the MIN and MAX
marks on the expansion tank. If the system is
Engine compartment
not filled sufficiently, high temperatures could
occur, causing a risk of damage to the engine.
WARNING
Coolant can be very hot. If the coolant
requires topping up when the engine is at
operating temperature, unscrew the expan-
sion tank cap slowly to gently release the
overpressure.
Brake and clutch fluid
Checking the level
Brake and clutch fluid have a common reser-
voir. The level must be between the MIN and
MAX marks that are visible inside the reservoir.
Check the level regularly.
Change the brake fluid every other year or at
every other regular service.
For capacities and recommended fluid grade,
see page 272. The fluid should be changed
annually on cars driven in conditions requiring
hard, frequent braking, such as driving in
mountains or tropical climates with high
humidity.
06
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