Page 321 of 464

321 Practical hints
What to do if …?
Text messagesDisplay
Display message
Possible cause
Possible solution
ABS
Anti-lock
braking system
not working!
The charging voltage has fallen below
10 volts and the ABS has switched off.
The brake system is still functioning nor-
mally but without the ABS available.
When the voltage is above this value
again, the ABS is operational again.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Defective!
Visit workshop!
The ABS has detected a malfunction and
has switched off. The ESP and the BAS are
also deactivated.
The brake system is still functioning nor-
mally but without the ABS available.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Page 322 of 464

322 Practical hintsWhat to do if …?Display
Display message
Possible cause
Possible solution
ABS
Display defective!
Visit workshop!
The ABS or the ABS display is malfunc-
tioning.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
BAS
Defective!
Visit workshop
The BAS has detected a malfunction and
switched off.
Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Display defective
Visit workshop
BAS or the BAS display is malfunctioning.
Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Page 334 of 464

334 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
A
Reserve fuel
The fuel level has dropped below the re-
serve mark.
Refuel at the next gas station
(page 284).
Y
Hood open!
You are driving with the hood open.
Close the hood (
page 288).
I
Remove key
You have forgotten to remove the
SmartKey.
Remove the SmartKey from the start-
er switch.
Replace key!
No additional code available for SmartKey
or SmartKey with KEYLESS-GO*
Visit an authorized Mercedes-Benz
Center as soon as possible.
Key
Check battery!
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Change the batteries (
page 350).
Key
not recognized!
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running be-
cause
the SmartKey is not in the vehicle
there is strong radio-frequency inter-
ference
Stop the vehicle as soon as it is safe to
do so.
Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey
in the vehicle.
Operate the vehicle with the SmartKey
in the starter switch if necessary.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 335 of 464

335 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
I
Key recognized
in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey out of the vehicle.
Key
do not forget key
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no SmartKey
in the starter switch.
Message is only a reminder.
Insert SmartKey in the starter switch.
Take the SmartKey with
KEYLESS-GO* with you when leaving
the vehicle.
.
3rd stop lamp
The high mounted brake lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Back- up lamp, left
The left backup lamp is malfunctioning.
Replace the bulb as soon as possible.
Back- up lamp, right
The right backup lamp is malfunctioning.
Replace the bulb as soon as possible.
Display defective
Visit workshop!
The display for the lamps or the system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp, left
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Front foglamp, right
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
High beam, left
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
High beam, right
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
Page 340 of 464
340 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
K
Lock top
The soft top is not properly locked.
Lock the soft top again (
page 220).
Top being opened
The soft top is not completely open or
closed. The hydraulics are losing pres-
sure.
Open or close the soft top all the way.
Top Visit workshop
The soft top is malfunctioning.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Start engine to
operate top
The on-board voltage is too low.
Start the engine.
Top locked
as vehicle is moving
You have attempted to open or close the
soft top while driving.
Pull over to the side of the road and re-
peat soft top operation while the vehi-
cle is stationary.
Page 345 of 464

345 Practical hints
Where will I find...?
Vehicle jackThe vehicle jack is stored in the space un-
derneath the trunk floor together with the
vehicle tool kit in the vehicle tool kit stor-
age well casing.
Remove the vehicle jack from its com-
partment.
Push the crank handle up.
Turn the crank handle clockwise until it
engages (operational position).
Before storing the vehicle jack in its com-
partment:
It should be fully collapsed
The handle must be folded in (storage
position)
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on a level surface. Make sure the jack arm is
fully seated in the jack take-up bracket. Al-
ways lower the vehicle onto sufficient ca-
pacity jackstands before working under the
vehicle.
Page 346 of 464

346 Practical hintsWhere will I find...?Minispare wheel
The Minispare wheel is located in the com-
partment underneath the trunk floor.
1Vehicle tool kit
Wheel wrench
Jack
Wheel bolts for Minispare wheel
2Arrow
3Minispare wheel
4Vehicle tool kit storage well casingRemoving the Minispare wheel
Lift trunk floor cover and engage trunk
floor handle in upper edge of trunk.
Loosen the retaining screw
(page 344) in the middle of storage
well casing.
Remove the storage well casing
(page 344).
Remove vehicle tool kit storage well
casing4.
Remove Minispare wheel3.Storing the Minispare wheel
Place Minispare wheel3 in wheel
well.
Place vehicle tool kit storage well
casing4 over the Minispare wheel.
Make sure the arrow 2 on storage
well casing4 points in the direction of
travel.
Place storage well casing
(page 344) over the vehicle tool kit
storage well casing 4 and turn the re-
taining screw (
page 344) clockwise
as far as it will go to secure the
Minispare wheel.
iThe arrow2 on vehicle tool kit stor-
age well casing4 must point in the di-
rection of travel, otherwise you cannot
place the storage well casing
(page 344) on top and secure the
Minispare wheel with the retaining
screw (
page 344).
Page 348 of 464
348 Practical hintsUnlocking/locking in an emergency
Unlocking/locking in an emergencyUnlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey or KEYLESS-GO*, open the
driver’s door and the trunk using the me-
chanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of ar-
row and slide the mechanical key2
out of the housing.Unlocking the driver’s door
1Unlocking
2Locking
Unlock the door with the mechanical
key. To do so, push the mechanical key
in the lock until it stops and turn it to
the left.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:
Press button Œ or ‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
Vehicles with KEYLESS-GO*
Pull the outside door handle.
Press the KEYLESS-GO* start/stop
button (
page 33).