4.2 Coolant
Coolant is a m1xtu10 of w,,tor ,tnd ant,corrosion /antifreeze agent. For reasons of
corro sion protnct1011
,mcl 111 orcJcr to raise the boiling point , the coolant must
remain
in the coo hr1cJ •,y•,lt•m all year round . Renew coo lant every third year since
the anticorros1on offrn
l dtit orror ates.
Water
Water alone 1s not pNrrnttod to be used as coo lant, even if no antifreeze
propertie s are requrw d Water used as coolant must, however, meet specific
requirement s which
aro often but not always met by potable water.
Should the quahty of the water be insufficient , this water must be conditioned.
Any MERCED ES-81::N/ service station will advise you according ly.
Anticorrosion/antlfreeze agents
During operati on, the proportion of anticorrosion /antifreeze agent in the coo lant
must not drop below 40 % by volume (this corresponds to antifreeze protection
to -25 °C/ -13 °F). The ant1corrosion propert ies are no longer ensured if the
proportion is lower.
To prevent damage to the cooling system:
- Only use an approv ed brand of anticorros ion/antifreeze agent. Any
MERCEDES-BENZ service station will advise you accordingly.
- A proportion of 50
% by volume of anticorrosion 'antifreeze agent (antifreeze
protection to -37 °C / -35 °F) must be ensured when replenish ing the system
(after coolant losse s).
- Never use any more than 55
% by volume ( = maximum antifreeze protection )
of anticorrosion ,antifreeze agent. Antifreeze protection and
heat dissipation are reduced.
53
To Next Page
Loading...
