Page 649 of 769
648 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking Brake
See Oper. Manual
When you engage or release the electronic
parking brake, the red indicator lamp for
the electronic parking brake flashes for
approx.10 seconds. Afterward, it goes out
or comes on continuously. The yellow warn-
ing lamp for the electronic parking brake
comes on.
The electronic parking brake is malfunction-
ing or overheated for example due to over-
or undervoltage.
Carefully drive off (
page 412).
Contact an authorized Mercedes-Benz
Center as soon as possible.
In the event of overvoltage or undervoltage:
Remove the cause of the overvoltage or und-
ervoltage, e.g. charge the battery or restart
the engine.
Switch ignition off and back on again, and en-
gage or release electronic parking brake
(page 412).
If the electronic parking brake still cannot be re-
leased:
Contact an authorized Mercedes-Benz
Center as soon as possible.
(Continued on next page)
(USA only)(Canada only)
Page 658 of 769
657 Practical hints
What to do if …?
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display
Possible cause/consequence
Possible solution
Coolant Low
Stop Vehicle
Turn Engine Off
The coolant is too hot.
Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Engage the electronic parking brake
(page 412).
Only start the engine again after the message
disappears. You could otherwise damage the
engine.
Observe the coolant temperature gauge in
the instrument cluster (
page 30).
Warning!
G
Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.
Steam from an overheated engine can
cause serious burns which can occur
just by opening the engine hood. Stay
away from the engine if you see or hear
steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.
!
The engine should not be operated with the
coolant temperature above 248°F (120°C). Do-
ing so may cause serious engine damage which
is not covered by the Mercedes-Benz Limited
Warranty.
Page 659 of 769
658 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Coolant Low
Stop Vehicle
Turn Engine Off
The poly-V-belt could be broken.
Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Engage the electronic parking brake
(page 412).
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine.
Notify an authorized Mercedes-Benz Center.
If it is intact:
Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Observe the coolant temperature gauge in
the instrument cluster (
page 30).
(Continued on next page)
