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Safety systems
Display messages
Possible causes/consequences and
X SolutionsG Tele Aid
Inoperativ
e One or more main functions of the Tele Aid system are
malfunctioning.
X
Have the Tele Aid system checked at an authorized
Mercedes-Benz Center. + Restraint
System
Malfunctio
n
Service
Required There is a malfunction in the Supplemental Restraint System
(SRS). The air bags or the Emergency Tensioning Devices
(ETDs) could deploy unexpectedly or fail to activate in an
accident.
X
Drive with added caution to the nearest authorized
Mercedes-Benz Center and have the system checked
immediately. G
Warning!
In the event a malfunction of the SRS is
indicated as outlined above, the SRS may not
be operational.
For your safety, we strongly recommend that
you contact an authorized Mercedes-Benz Center immediately to have the system
checked. Otherwise the SRS may not be
activated
when needed in an accident, which
could result in serious or fatal injury, or it
might deploy unexpectedly and unnecessarily
which could also result in injury.
Vehicle Display messages
Possible causes/consequences and
X Solutions: The trunk is open.
X
Close the trunk (Y page 60). L You are driving with the hood open.
X
Stop the vehicle in a safe location as soon as it is safe to
do so.
X Close the hood ( Y page 193).
There is otherwise danger of an accident. ¡ You are driving with at least one door open.
X
Close all doors. Vehicle status messages in the multifunction display
245
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Display messages
Possible causes/consequences and
X SolutionsK Retractabl
e Roof
Operation
Please
Wait The on-board voltage is too low.
X
Repeat the opening or closing procedure.
X Start the engine. The hardtop drive system was shut down for safety reasons
after multiple, consecutive attempts to raise or lower the
hardtop.
After
about 10 minutes you can open or close the retractable
hardtop.
X Switch on the ignition.
X Repeat the opening or closing procedure.
X If the retractable hardtop still does not open or close
properly, have the hardtop system checked at an
authorized Mercedes-Benz Center. K Retractabl
e Roof
Lowering The retractable hardtop is not completely opened or closed.
The roof hydraulics will start to lose pressure.
X
Make sure the retractable hardtop is completely opened or
closed ( Y page 170). K Retractabl
e Roof
Operation
Only At
Standstill You have attempted to open the retractable hardtop while
driving.
X
Stop the vehicle in a safe location and try to open the
hardtop again. K Retractabl
e Roof
Not
Opened/
Closed
Completely You are driving with the retractable hardtop not properly
locked.
X
Stop the vehicle in a safe location. Observe the traffic
situation around you.
X Push the retractable hardtop switch forward or rearward
until the retractable hardtop is completely closed or open
(Y page 170).
X If the retractable hardtop still does lock properly, have the
hardtop system checked at an authorized Mercedes-Benz
Center. J Trunk
Partition
Open You are trying to open or close the retractable hardtop even
though the luggage cover in the trunk is not closed and/or
properly engaged.
X
Close the luggage cover ( Y page 173).+ Remove Key You have forgotten to remove the SmartKey.
X
Remove the SmartKey from the starter switch. 246
Vehicle status messages in the multifunction display
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!
Do not ignore the low engine coolant level warning. Extended driving with the message
and
symbol displayed may cause serious engine damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant in the cooling system. The engine will
overheat causing major engine damage. Display messages
Possible causes/consequences and
X Solutions? Coolant
Stop,
turn
engine
off. The coolant is too hot.
X
Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X Engage the parking brake.
X Only start the engine again after the message disappears.
You could otherwise damage the engine.
X Observe the coolant temperature in the multifunction
display.
X If the temperature rises again: Contact an authorized
Mercedes-Benz Center immediately.
During severe operation conditions and stop-and-go city
traffic, the coolant temperature may rise close to 248‡
(120†). G
Warning!
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‡ (120†).
Doing so may cause serious damage which is not covered by the Mercedes-Benz Limited
Warranty. 248
Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X Solutions? Coolant
Stop,
turn
engine
off. The poly-V-belt could be broken.
X
Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X Check the poly-V-belt.
X If it is broken: Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.
X 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.
X Observe the coolant temperature in the multifunction
display.
X Drive to the nearest authorized Mercedes-Benz Center
immediately. ? The radiator cooling fan is malfunctioning.
X
Observe the coolant temperature in the multifunction
display.
If
the coolant temperature is below 248‡ (120†), you may
continue driving to an authorized Mercedes-Benz Center.
X Avoid placing heavy loads on the engine (e.g. by driving
uphill) as well as stop-and-go traffic.
X Have the fan replaced as soon as possible. # The battery is no longer charging.
Possible causes:
R
alternator malfunctioning
R broken poly-V-belt
X Stop immediately in a safe location or as soon as it is safe
to do so and check the poly-V-belt.
X If it is broken: Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.
X If it is intact: Drive to the nearest authorized Mercedes-
Benz Center immediately. Adjust driving to be consistent
with reduced braking responsiveness. Vehicle status messages in the multifunction display
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Problem
Possible causes/consequences and
X Solutions$ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
driving and an acoustic
warning sounds. You are driving with the parking brake engaged.
X
Release the parking brake. $ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
the engine is running. There is insufficient brake fluid in the reservoir.
Risk of accident!
X
Do not drive any further. Stop the vehicle in a safe location as
soon as it is safe to do so.
X Engage the parking brake.
X Read and observe messages that may appear in the
multifunction display
(Y page 236).
X Contact an authorized Mercedes-Benz Center.
Do not add brake fluid! This will not solve the problem. G
Warning!
Driving with the brake warning lamp
illuminated can result in an accident. Have
your
brake system checked immediately if the
brake warning lamp stays on. Do not add
brake fluid before checking the brake system.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be
seriously burned.
! If
you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum
mark or below, have the brake system
checked for brake pad thickness and leaks. 258
What to do if …
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