146
CARE AND MAINTENANCE
6.2 Checking the coolant level
Operation_Pic_number:1
Level between MIN and MAX mark on the
expansion reservoir.
Operation_Pic_number:1
● Only top up with clean, calcium-free water
with antifreeze (glycol) through filler necks
(A).
Check concentration of coolant. Check for even-
tual leaks on hose connections (heating system
too!).
NOTE:
The antifreeze solution also contains inhibi-
tors to protect against cavitation and corro-
sion. A minimum concentration of
35 - 50 vol. % antifreeze and anticorrosive is
therefore necessary throughout the year,
even in frost-free areas.
CAUTION:
When the engine is hot, take extreme
care when removing the radiator cap
and left hot steam escape.
The coolant is under pressure - risk
of scalding.
Fig.21
Fig.22
6.3 Replacing coolant
Replace coolant at least every 2 years.
Draining coolant from the radiator
Operation_Pic_number:1
● Open the cap on filler neck.
● Switch on the heater.
● Position drain pan under engine.
● Unscrew screw (A) and remove and allow
coolant to run out.
Text-module
Filling with coolant
● Mix antifreeze solution with clean, deminerali-
sed water and fill to the level of in the expan-
sion tank.
● With the heater switched on, run the engine
for about 10 minutes (at about 1,500 rpm).
● When the engine has cooled down, check the
coolant level and top up if necessary.
6.4 Cleaning the cooling/hea-
ting system
If the coolant is badly contaminated, i. e. with
rust or grease, use only hot cleaning solution
(e.g. 'P3') to flush the cooling system.
● Run the engine for about one hour, filled with
the cleaning solution.
● Flush out with clean water and top up with
coolant solution.
DANGER:
Turn off the engine!
Fig.23
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