Volvo C30 2012 Owner's Manual page 228

09 Maintenance and service
Oils and fluids
09
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. Otherwise, tem-
peratures that are too high may occur
resulting in the risk of damage (cracks)
in the cylinder head.
For capacities and for standards regarding
water quality, see page 293.
4 Location dependent on whether car is left or right-hand drive.
226
Check the coolant regularly
The level must lie between the MIN and MAX
marks on the expansion tank. If the system is
not filled sufficiently, high local temperatures
could occur, causing a risk of damage (cracks)
to the cylinder head. Top up the coolant when
the level falls to the MIN mark.
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.
NOTE
The engine must only be run with a well-
filled cooling system. Otherwise, tempera-
tures that are too high may occur resulting
in the risk of damage (cracks) in the cylinder
head.
Checking and topping up the brake and
clutch fluid
Brake and clutch fluid have a common reser-
4
voir . The fluid level must be between the
MIN and MAX marks. Check the level regularly.
Change the brake fluid every other year or at
every other regular service.
For capacities and recommended fluid grade,
see the table Fluids on page 293.
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.