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10 Maintenance and service
10
360
WARNING
Coolant can be very hot. If the coolant
requires topping up when the engine is at
operating temperature, unscrew the
expansion tank cap slowly to gently
release the overpressure.
For capacities and for standards regarding
water quality; see Coolant - grade and vol-
ume (p. 411).
Check the coolant regularly
The level must be between the MIN and MAX
marks on the expansion tank. If the system is
not filled sufficiently, high temperatures could
occur, causing a risk of damage to the
engine.
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
cooling 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,
temperatures that are too high may
occur resulting in the risk of damage
(cracks) in the cylinder head.
Brake and clutch fluid - level
Brake and clutch fluid level should be
between the reservoir MIN and MAX marks.
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 reser-
voir. Check the level regularly.
Change the brake fluid every other year or at
every other regular service.
The fluid should be changed annually on cars
driven in conditions requiring hard, frequent
braking, such as driving in mountains or tropi-
cal climates with high humidity.
For capacities and recommended brake fluid
grade, see Brake fluid - grade and volume
(p. 414).
WARNING
If the brake fluid is under the MIN level in
the brake fluid reservoir, do not drive fur-
ther before topping up the brake fluid.
Volvo recommends that the reason for the
loss of brake fluid is investigated by an
authorised Volvo workshop.
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