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Over 60% of coolant additive in the coolant reduces the antifreeze protec-
■
tion and cooling effect.
A coolant additive that does not comply with the correct specification can
■
significantly reduce the corrosion protection of the cooling system.
Any faults resulting from corrosion may cause a loss of coolant and can con-
■
sequently result in major engine damage.
Do not fill the coolant above the mark
■
If an error occurs, leading to the engine overheating, the help of a professio-
■
nal garage is to be sought - there is a risk of serious engine damage occurring.
Additional headlights and other attached components in front of the air inlet
■
impair the cooling efficiency of the coolant.
Never cover the radiator - there is a risk of the engine overheating.
■
Note
The coolant capacity is approximately 1 l greater on vehicles that are fitted
with an auxiliary heater (auxiliary heating and ventilation).
Checking the coolant level
Read and observe
and
The coolant expansion bottle is located in the engine compartment.
Coolant expansion reservoir
» Fig. 161
Mark for the maximum permissible coolant level
A
Mark for the lowest permissible coolant level
B
The coolant level should be kept between the marks
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is standing on a horizontal surface.
The engine is turned off.
» Fig. 161
on page 171.
A
Fig. 161
Coolant expansion reservoir
on page 170 first.
and
.
A
B
The engine is not heated.
The bonnet is open.
Checking the level
›
Check the coolant level in the coolant expansion tank
If the engine is warm, the test result may be inaccurate. The level can also be
above the mark
» Fig.
161.
A
In case of low coolant level, the indicator symbol is displayed in the instru-
ment cluster along with the relevant
inspecting the coolant level directly at the reservoir from time to time.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the cooling sys-
tem. Do not merely top up the coolant. Have the cooling system checked by a
specialist garage.
Replenishing
Read and observe
and
The coolant expansion tank must always contain a small amount of coolant
» page 170,
in section Introduction.
›
Place a cloth over the cap of the coolant expansion tank and unscrew the
cap carefully.
›
Replenish the coolant.
›
Turn the cap until it clicks into place.
CAUTION
Only top up with new coolant.
■
Do not use an alternative additive if the specified coolant is not available. In
■
this case, use just water and have the correct mixing ratio of water and cool-
ant additive restored by a specialist garage as soon as possible.
Brake fluid
Introduction
This chapter contains information on the following subjects:
Checking the brake fluid level
Specification
» Fig.
161.
message» page
35. We still recommend
on page 170 first.
Inspecting and replenishing
172
172
171
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