Mercedes-Benz AMG SL Roadster 2023 Manual page 370

368 Technical data
Allow the engine to cool down before
#
adding antifreeze.
Make sure that no antifreeze spills out
#
next to the filler opening.
Thoroughly clean off any antifreeze from
#
component parts before starting the
vehicle.
* NOTE Damage caused by incorrect cool-
ant
Only use coolant that has been premixed
#
with the required antifreeze protection.
Information on coolant is available at the fol-
lowing locations:
In the Mercedes-Benz Specification for
R
Operating Fluids 320.1
At https://bevo.mercedes-benz.com
-
In the Mercedes-Benz BeVo app
-
At a qualified specialist workshop
R
* NOTE Overheating at high outside temper-
atures
If an inappropriate coolant is used, the cooling
system is not sufficiently protected against
overheating and corrosion at high outside
temperatures.
Only use coolant approved for
#
Mercedes-Benz.
Observe the instructions in the
#
Mercedes-Benz Specifications for Oper-
ating Fluids 320.1.
Have the coolant regularly replaced at a qualified
specialist workshop.
Proportion of antifreeze concentrate in the cool-
ing system:
A minimum of 50% (antifreeze protection down
R
to about -35°F (-37°C))
A maximum of 55% (antifreeze protection
R
down to -49°F (-45°C))
Coolant filling capacity
Coolant (Mercedes-AMG SL 43)
Mercedes-AMG SL 43 Capacity
Engine cooling circuit 18.3 US qt
(filling capacity with (17.3 liters)
heating)
Cooling circuit (drive 6.0 US qt (5.7 liters)
system)
Cooling circuit (high- 3.6 US qt (3.4 liters)
voltage battery)
Coolant (all other models)
All other models Capacity
Engine cooling circuit 18.8 US qt
(filling capacity with (17.8 liters)
heating)
Cooling circuit (drive 7.4 US qt (7.0 liters)
system)