Mercedes-Benz S-Class Cabriolet 2017 Owner's Manual page 421

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418 Technical data
Further information on brake fluid:
in the Mercedes-Benz Specifications for
R
Operating Fluids at http://bevo.mercedes-
benz.com
at a qualified specialist workshop
R
Coolant
Notes on coolant
Observe the notes on service products
(
page 414).
& WARNING Risk of fire‑ and injury from
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite.
Allow the engine to cool down before
#
you top up the antifreeze.
Make sure that no antifreeze spills out
#
next to the filler opening.
Thoroughly clean the antifreeze from
#
component parts before starting the
vehicle.
* NOTE Damage caused by incorrect cool‐
ant
Only add coolant that has been pre‐
#
mixed with the required antifreeze pro‐
tection.
Further information on coolant:
In the Mercedes-Benz Specifications for
R
Operating Fluids 310.1, e.g. online at
http://bevo.mercedes-benz.com.
At a qualified specialist workshop.
R
* NOTE Overheating at high outside tem‐
peratures
If an inappropriate coolant is used, the
engine cooling system is not sufficiently pro‐
tected against overheating and corrosion at
high outside temperatures.
Always use coolant approved by
#
Mercedes-Benz.
Observe the instructions in the
#
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1.
Have the coolant regularly changed at a qualified
specialist workshop.
The proportion of corrosion inhibitor/antifreeze
concentrate in the engine cooling system should
be:
a minimum of 50% (antifreeze protection
R
down to approximately -37 °C).
a maximum of 55% (antifreeze protection
R
down to -45 °C).
Notes on windscreen washer fluid
Observe the notes on operating fluids
(
page 414).

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