Maintenance 5
Engine
4
4
5
5
t3921378
¾ Read off the filling level in filler neck.
• Min. marking is the edge (4) of the lower
step.
• Max. marking is the edge (5) of t
he upper
step.
Difference in quantity between min. and max.:
approx. 0.75 l
Filling quantity in cooling system
without heating system and
air conditioning:
8.5 l
with heating system and air conditioning:
10.0 l
The frost protection should be sufficient for
temperatures down to -25 °C. The mixture
ratio required here is 40 % coolant additive
and 60 % drinking water.
Mixture ratio for lower t
emperatures:
Temperature
Coolant
additive
Drinking
water
-30°C 45% 55%
-35°C 50% 50%
-40°C 60% 40%
¾ Run engine until coo
ling system has been
bled of air.
¾ Check coolant level.
¾ Fit filler cap (2) and turn to tighten.
¾ Close the bonnet.
Checking the cool
ant concentration
The cooling syst
em must be filled all-year-
round with a mixt
ure of water and phos-
phate-free, gly
col-based coolant additive with
anti-corrosion
additives to prevent lime scale
deposits and dam
age caused by frost and cor-
rosion, and to ra
ise the boiling temperature.
Operating Instructions – 394 807 10 01 EN – 07/2011 131
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