X
Park the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a
level surface and the engine
has cooled down.
X Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Slowly turn cap 0043 half a turn counter-
clockwise to allow excess pressure to
escape.
X Turn cap 0043
further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
0087
in the filler neck when cold, there is
enough coolant in coolant expansion
tank 0044.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0087 in the filler
neck when warm, there is enough coolant
in coolant expansion tank 0044.
X If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap 0043 and turn
it
clockwise as far
as it will go.
For further information on coolant, see
(Y page 354). Adding washer fluid to the windshield
washer system/headlamp cleaning
system G
WARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine
parts, because it may
ignite and burn. You could be seriously
burned. Example: washer fluid reservoir
X
To open: pull cap 0043 upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap
0043 onto
the filler neck
until it engages.
Further information on windshield washer
fluid/antifreeze ( Y page 356).
Brake fluid level !
If you notice that the brake fluid level in
the brake fluid reservoir has fallen to the
MIN mark or less, check the brake system
immediately for leaks. Also check the
thickness of the brake linings. Visit a
qualified specialist workshop immediately.
Do not add brake fluid. This does not
correct the error. 292
Engine compartment
Maintenance and care
