X
Press the 0059 or 0065 button on the
steering wheel to select the Sett. menu.
X Press the 0064 or 0063 button to select the
Vehicle submenu.
X Press 0076 to confirm.
X Press the 0064 or 0063 button to
select the
Acoustic Lock function.
If the Acoustic Lock function is activated,
the 0037 symbol in the multifunction
display lights up red.
X Press the 0076 button to save the setting.
Activating/deactivating the radar sensor
system
X Press the 0059 or 0065 button on the
steering wheel to select the Sett. menu.
X Press the 0064 or 0063 button to
select the
Vehicle submenu.
X Press 0076 to confirm.
X Press the 0063 or 0064 button to select
Radar Sensor (See Oper. Manual):.
You will see the selected setting: Enabled
or Disabled.
X Press the 0076 button to save the setting.
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS (Y page 171)
R BAS PLUS (Y page 65)
R PRE-SAFE ®
Brake ( Y
page 69)
R Blind Spot Assist (Y page 198) or Active
Blind Spot Assist (Y page 202)
Convenience Activating/deactivating the EASY-
ENTRY/EXIT feature
G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury. While the EASY-ENTRY/EXIT feature is
making adjustments, make sure that no one
has any body parts in the sweep of the seat
and the steering wheel.
If somebody becomes trapped:
R
press one of the memory function position
buttons, or
R move the switch for steering wheel
adjustment in the opposite direction
to that
in which the steering wheel is moving.
The adjustment process is stopped.
X Press the 0059 or 0065 button on the
steering wheel to select the Sett. menu.
X Press the 0064
or 0063
button to
select the
Convenience submenu.
X Press 0076 to confirm.
X Press the 0064 or 0063 button to
select the
Easy Entry/Exit function.
If the Easy Entry/Exit function is
activated, the vehicle steering wheel is
displayed in red in the multifunction
display.
X Press the 0076 button to save the setting.
Further information on the EASY-ENTRY/EXIT
feature ( Y page 102).
Switching the belt adjustment on/off
X Press the 0059 or 0065 button on the
steering wheel to select the Sett. menu.
X Press the 0064 or 0063 button to
select the
Convenience submenu.
X Press 0076 to confirm.
X Press the 0064 or 0063 button to
select the
Belt Adjustment function.
When the Belt Adjustment function is
activated, the vehicle seat belt is displayed
in red in the multifunction display.
X Press the 0076 button to save the setting.
For further information on belt adjustment,
see ( Y page 56). Menus and submenus
229
On-board computer and displays Z
Switching the fold-in mirrors when
locking feature on/off
This function is only
available
on vehicles with
the memory function ( Y page 106).
This function is only available in Canada.
When you activate the Auto. Mirror
Folding function, the exterior mirrors are
folded in when the vehicle is locked. If you
unlock the vehicle and then open a door, the
exterior mirrors fold out again.
X Press the 0059 or 0065 button on the
steering wheel to select the Sett. menu.
X Press the 0064 or
0063
button
to
select the
Convenience submenu.
X Press 0076 to confirm.
X Press the 0064
or 0063
button to
select the
Auto. Mirror Folding function.
If the Auto. Mirror Folding function is
activated, the vehicle's exterior mirror is
displayed in red in the multifunction
display.
X Press the 0076 button to save the setting.
If you have switched the Auto. Mirror
Folding function on and you
fold the exterior
mirrors in using the button on the door
(Y page 104), they will not fold out
automatically. The exterior mirrors can then
only be folded out using the button on the
door.
Restoring the factory settings X
Press the 0059 or 0065 button on the
steering wheel to select the Sett. menu.
X Press the 0064 or 0063 button to
select the
Factory Setting submenu.
X Press 0076 to confirm.
The Reset All Settings? message
appears. X
Press the 0064 or 0063 button to select
No or Yes.
X Press the 0076 button to confirm the
selection.
If you have selected Yes,
the multifunction
display shows a confirmation message.
For safety reasons, the Day Lights function
in the Lights submenu is only reset if the
vehicle is stationary. 230
Menus and submenus
On-board computer and displays
Safety systems
Display messages Possible causes/consequences and
0050 Solutions002500E5
Currently
Unavailable See
Operator's Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE®
,
the HOLD function, hill
start assist and ESP ®
trailer stabilization are temporarily
unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the 00E5, 00BB and 0025 warning lamps light up in
the instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational, ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive on a suitable stretch of road, making slight
steering movements at a speed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. 00E5
Inoperative See
Operator's Manual ESP
®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist and
ESP ®
trailer stabilization are unavailable due to a malfunction.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the 00E5 and 00BB warning lamps light up in the
instrument cluster.
The self-diagnosis function might not be complete, for example.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. 232
Display messages
On-board computer and displays
Display messages Possible causes/consequences and
0050 SolutionsThe braking distance in an emergency braking situation can thus
increase.
If ESP
®
is not
operational, ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive on a suitable stretch of road, making slight
steering movements at a speed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. 007A0025
00E5
Inoperative See
Operator's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS, PRE-
SAFE ®
, the HOLD function, hill start assist and ESP ®
trailer
stabilization are unavailable due to a malfunction.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the 00E5, 00BB and 0025 warning lamps light up in
the instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational, ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 0049(USA
only)004D(Canada
only)
Release Parking
Brake You are driving with the parking brake applied. A warning tone also
sounds.
X
Release the parking brake. Display messages
233
On-board computer and displays Z
Display messages Possible causes/consequences and
0050 Solutions00AC
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 160).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating
conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). 244
Display messages
On-board computer and displays
Display messages Possible causes/consequences and
0050 Solutions0066 The hood is open.
G WARNING
The open hood may block your view when the vehicle is in motion.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 160).
X Close the hood. 0051 At least one door is open.
X
Close all the doors. 00CC
Power Steering
Malfunction See
Operator's Manual The power steering is malfunctioning.
A warning tone also sounds.
G WARNING
You will need to use more force to steer.
There is a risk of an accident.
X Check whether you are able to apply the extra force required.
X If you are able to steer safely:
carefully drive
on to
a qualified
specialist workshop.
X If you are unable to steer safely: do not drive on.
Contact the
nearest qualified specialist workshop. Phone No Service Your vehicle is outside the network provider's transmitter/
receiver range.
X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display. 00B2
Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Add washer fluid ( Y page 303). Display messages
255
On-board computer and displays Z
SmartKey
Display messages Possible causes/consequences and
0050 Solutions00AF
Key Does Not
Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey. 00AF
Take Your Key from
Ignition The SmartKey is in the ignition lock.
X
Remove the SmartKey. 00AF
Obtain a New Key The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop. 00AF
Replace Key Battery The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries ( Y page 77).00AF
Don't Forget Your
Key The display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
X
Remember to take the KEYLESS-GO key with you when you
leave the vehicle. 00AF
Key Not Detected
(red display message) The KEYLESS-GO key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 160)
(Y page 160).
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because
there is
interference from
a strong source of radio waves.
A warning tone also sounds.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 160).
X Operate the vehicle with the SmartKey in the ignition lock.256
Display messages
On-board computer and displays
Display messages Possible causes/consequences and
0050 Solutions00AF
Key Not Detected
(white display
message) The KEYLESS-GO key cannot be detected at present.
X
Change the location of the SmartKey with the KEYLESS-GO
functions in the vehicle.
If the KEYLESS-GO key is still not detected:
X Operate the vehicle with the SmartKey in the ignition lock. 00AF
Key Detected in
Vehicle The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle. 00AF
Remove 'Start'
Button and Insert
Key The KEYLESS-GO key can continuously not be detected.
KEYLESS-GO is temporarily malfunctioning or is defective. A
warning tone also sounds.
X
Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop. 00AF
Close Doors to
Lock Vehicle At least one door is open. A warning tone also sounds.
X
Close all doors and lock the vehicle again. Warning and indicator lamps in the instrument cluster
Seat belts
Problem Possible causes/consequences and
0050 Solutions00E9
After starting the
engine, the red seat
belt warning lamp lights
up for 6 seconds.
The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X
Fasten your seat belt ( Y page 56).00E9
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a
warning tone sounds
for up to six seconds.
The driver's seat belt is not fastened.
X
Fasten your seat belt ( Y page 56).
The warning tone ceases. Warning and indicator lamps in the instrument cluster
257On-board computer and displays Z