Mercedes-Benz CLS Owner's Manual page 358

Have the brake fluid regularly replaced at a
qualified specialist workshop.
Only use a brake fluid approved by Mercedes-
Benz according to MB-Freigabe or MB-Approval
331.0.
Coolant
Notes on coolant
Observe the notes on operating fluids
( page 347).
/
& 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 use coolant that has been pre‐
#
mixed with the required antifreeze pro‐
tection.
Information on coolant is available at the fol‐
lowing locations:
in the Mercedes-Benz Specification for
R
Operating Fluids 310.1
at https://bevo.mercedes-benz.com
-
in the Mercedes-Benz BeVo app
-
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.
Technical data 355
Observe the instructions in the
#
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1.
Have the coolant regularly replaced at a qualified
specialist workshop.
Proportion of antifreeze concentrate in the
engine cooling system:
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 347).
/
& WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Windscreen washer concentrate is highly
flammable. It could ignite if it comes into
contact with hot engine component parts or
the exhaust system.