
advisable to brake the vehicle with
considerable force prior to parking. The heat
generated serves to dry the brakes.
Salt-covered roadsGWarning!
A layer of salt on the brake discs and the brake
linings may cause a delay in the braking
effect, resulting in a significantly increased
braking distance, which could lead to an
accident.
To avoid this danger, you should:
R occasionally brake carefully when you are
driving on salt-covered roads, so that any
layer of salt that may have built up on the
brake discs and the brake linings is
removed without putting other road users
at risk
R maintain a greater distance to the vehicle
ahead and drive with particular care
R carefully apply the brakes at the end of a
trip and immediately after commencing a
new trip, so that salt residues are removed
from the brake disc
Brake service
!  The brake fluid level in the reservoir may
be too low if the red brake warning lamp in
the instrument cluster comes on while the
engine is running and an acoustic warning
sounds. Observe additional messages in
the multifunction display that may appear.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the
reservoir.
Have the brake system inspected
immediately. Contact an authorized
Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and use brake fluid
recommended by Mercedes-Benz.
GWarning!
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that safe
braking is substantially impaired. This could
result in an accident.
!  Because the ESC operates automatically,
the engine and ignition must be shut off
(KEYLESS-GO start/stop button in position
0  or  1, or SmartKey in starter switch
position  0 or  1) when the electronic parking
brake is being tested on a brake test
dynamometer or when the vehicle is being
towed with the rear axle raised.
Active braking action through the ESC may
otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
If your brake system is only subjected to
moderate loads, you should occasionally test
the effectiveness of the brakes by applying
above-normal braking pressure at higher
speeds. This will also enhance the grip of the
brake pads.
GWarning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Refer to the description of the Brake Assist
System (BAS) ( Y page 62).
High-performance brake system and
ceramic brake system    
GWarning!
New vehicle brake pads and disks, and
replacement brake pads and disks may take
several hundred miles of driving until they
provide optimum braking efficiency. Until that
time, you may need to use increased brake
pedal pressure while braking. Please be aware
of this and adjust your driving and braking
accordingly during this break-in period.
350Driving instructionsOperation
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Text messages
Safety systemsDisplay messagesPossible causes/consequences and  0050 SolutionsFront Passenger 
Airbag Enabled See 
Operator's ManualThe passenger front air bag and the passenger-side knee bag are
activated while driving even though a child, small individual, or
object below the system’s weight threshold is on the passenger
seat, or the passenger seat is empty. Objects on the seat or forces
acting on the seat may make the system sense supplemental
weight.    XStop the vehicle in a safe location as soon as possible.XEngage the electronic parking brake.XSwitch off the ignition.XOpen the passenger door.XRemove child and child restraint from passenger seat.XMake sure no objects which apply supplemental weight to the
seat are present. The system may recognize such supplemental
weight and sense that an occupant on the passenger seat is of
a greater weight than actually present.XKeep the seat unoccupied, close the passenger door and switch
on the ignition.
Monitor the  007F 0080  indicator lamp in the center console
( Y  page  38) and the multifunction display in the instrument cluster
( Y  page 273) for the following:
With the seat unoccupied and the ignition switched on,
R the  007F  0080  indicator lamp in the center console should
illuminate and remain illuminated, indicating that the OCS
( Y  page 49) has deactivated the passenger front air bag.
R the message  Front Passenger Airbag Enabled See 
Operator's Manual  or the message Front Passenger 
Airbag Disabled See Operator's Manual  should not
appear in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure neither
message appears in the multifunction display.
If above conditions are met, you can occupy the passenger seat
again. Depending on the passenger classification sensed by the
OCS, the  007F 0080  indicator lamp will remain illuminated or go
out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized Mercedes-
Benz Center as soon as possible.
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GWarning!
If the 007F 0080  indicator lamp remains out even after performing the above corrective steps,
do not have any children 12 years old and under and other small individuals use the passenger
seat until the system has been repaired.
Display messagesPossible causes/consequences and  0050 SolutionsFront Passenger 
Airbag Disabled 
See Operator's 
ManualThe passenger front air bag and the passenger-side knee bag are
deactivated while driving even though an adult or someone larger
than a small individual is occupying the passenger seat. Forces
acting on the seat may make the system sense a decrease in
weight.XStop the vehicle in a safe location as soon as possible.XEngage the electronic parking brake.XSwitch off the ignition.XHave the passenger vacate the seat and exit the vehicle.XKeep the seat unoccupied, close the passenger door and switch
on the ignition.
Monitor the  007F 0080  indicator lamp in the center console
( Y  page  38) and the multifunction display in the instrument cluster
( Y  page 273) for the following:
With the seat unoccupied and the ignition switched on,
R the  007F  0080  indicator lamp in the center console should
illuminate and remain illuminated, indicating that the OCS
( Y  page 49) has deactivated the passenger front air bag.
R the message  Front Passenger Airbag Enabled See 
Operator's Manual  or the message Front Passenger 
Airbag Disabled See Operator's Manual  should not
appear in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure neither
message appears in the multifunction display.
If above conditions are met, you can occupy the passenger seat
again. Depending on the passenger classification sensed by the
OCS, the  007F 0080  indicator lamp will remain illuminated or go
out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized Mercedes-
Benz Center as soon as possible.
GWarning!
If the  007F 0080  indicator lamp remains illuminated with an adult occupant on the passenger
seat even after performing the above corrective steps, do not have any passenger use the
passenger seat until the system has been repaired.
366Vehicle status messages in the multifunction displayPractical hints
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Driving systemsDisplay messagesPossible causes/consequences and 0050 SolutionsCruise Control
InoperativeThe cruise control is malfunctioning.
In addition an acoustic warning sounds.XHave the cruise control checked at an authorized Mercedes-
Benz Center.Cruise Control
 - - - mph One of the activation conditions for cruise control has not been
fulfilled. You may have attempted to set a speed below 20 mph
(30 km/h). XDrive faster than 20 mph (30 km/h) if the situation allows and
set the speed.XCheck the activation conditions for cruise control
( Y  page 290).
Vehicle
Display messagesPossible causes/consequences and  0050 SolutionsApply Brake
to Shift from 'P'You have attempted to shift the transmission into drive position
D , reverse gear  R or neutral position  N without depressing the
brake pedal.XDepress the brake pedal.Door Open
Vehicle Not in 'P'In addition an acoustic warning sounds.
You have opened the driver’s door and the transmission is still in
drive position  D, reverse gear  R or neutral position  N.XBefore you leave the vehicle, make sure the transmission is in
park position  P and the electronic parking brake is engaged.Service Required
Do Not Shift Gears 
Visit DealerIn addition an acoustic warning sounds.
The transmission cannot be shifted out of the current transmission
position because of a malfunction.
If the transmission is in drive position  D:XWithout shifting the transmission out of drive position  D, drive
to an authorized Mercedes-Benz Center.
If the transmission is set to neutral position  N, reverse gear  R or
park position  P:
XDo not drive.XContact an authorized Mercedes-Benz Center or call Roadside
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Display messagesPossible causes/consequences and 0050 Solutions0027
(USA only) 004D
(Canada only)
EBD, ABS, and ESC 
Inoperative See 
Operator's ManualIn addition, the yellow ESC warning lamp  00F2, the yellow ESC OFF
warning lamp  00C7, and the yellow ABS indicator lamp  0031 come
on and an acoustic warning sounds.
The brake system is still functioning normally but due to a
malfunction, the ABS, the BAS, the EBP, and the ESC are
unavailable.     XContinue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident.
0049
(USA only) 0024
(Canada only)
 Release Parking 
BrakeIn addition, the red indicator lamp for the electronic parking brake
flashes and an acoustic warning sounds. 
You are driving with the electronic parking brake engaged, or you
are carrying out an emergency brake maneuver with the electronic
parking brake ( Y page 261).XRelease electronic parking brake.
or
XDrive off carefully.
or
XRelease the handle for electronic parking brake.372Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and 0050 Solutions0049
(USA only) 0024
(Canada only)
 Release Parking 
BrakeIn addition, the red indicator lamp for the electronic parking brake
flashes, the yellow warning lamp for the electronic parking brake
comes on and an acoustic warning sounds.
The electronic parking brake is malfunctioning. The braking effect
is reduced.
While driving:XRelease the handle for electronic parking brake.
While at a standstill:
XSwitch off ignition and press handle for electronic parking brake
until the warning message disappears from the multifunction
display.
If the warning message does not disappear:
XShift the transmission to park position  P (Y  page 263).XProtect vehicle from rolling away while parked by using the
collapsible wheel chock from the vehicle tool kit ( Y page 362).XContact an authorized Mercedes-Benz Center as soon as
possible.0049
(USA only) 0024
(Canada only)
Turn On the 
Ignition to 
Release the 
Parking BrakeIn addition, the red indicator lamp for the electronic parking brake
comes on.
You have tried to release the electronic parking brake, but the
ignition was not switched on.XSwitch on the ignition.Vehicle status messages in the multifunction display373Practical hintsBA 197 USA, CA Edition A 2011; 1; 27, en-UShereepeVersion: 3.0.3.52010-03-24T15:31:10+01:00 - Seite 373Z 

Display messagesPossible causes/consequences and 0050 Solutions0049
(USA only) 0024
(Canada only)
Parking Brake See 
Oper. ManualIn addition, the yellow warning lamp for the electronic parking
brake comes on. The red indicator lamp for the electronic parking
brake may also come on.
The electronic parking brake is malfunctioning.
To release:XPull handle of electronic parking brake.
or
XDrive off carefully.XContact an authorized Mercedes-Benz Center as soon as
possible.
To engage:
XSwitch off the ignitionXPress handle for electronic parking brake for at least 10 seconds
until the warning message in the multifunction display
disappears.
If the warning message does not disappear:
XShift the transmission to park position  P (Y  page 263).XProtect vehicle from rolling away while parked by using the
collapsible wheel chock from the vehicle tool kit ( Y page 362).XContact an authorized Mercedes-Benz Center as soon as
possible.0049
(USA only) 0024
(Canada only)
Parking Brake See 
Oper. ManualIn addition, the red indicator lamp for the electronic parking brake
flashes.
The power supply for the electronic parking brake was interrupted.XPull handle of electronic parking brake.
or
XDrive off carefully.
or
XPress handle for electronic parking brake until the warning
message in the multifunction display disappears.374Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and 0050 Solutions0049
(USA only) 0024
(Canada only)
Parking Brake See 
Oper. ManualIn addition, the red indicator lamp for the electronic parking brake
flashes and the yellow warning lamp for the electronic parking
brake comes on.
The electronic parking brake is malfunctioning.XSwitch ignition off and back on again, and engage or release
electronic parking brake.
or
XDrive off carefully.XContact an authorized Mercedes-Benz Center as soon as
possible.0049
(USA only) 0024
(Canada only)
Parking Brake See 
Oper. ManualWhen you engage or release the electronic parking brake, the red
indicator lamp for the electronic parking brake flashes for
approximately 10 seconds. Afterward, it goes out or comes on
continuously. The yellow warning lamp for the electronic parking
brake comes on.
The electronic parking brake is malfunctioning or overheated for
example due to overvoltage or undervoltage.XDrive off carefully.XContact an authorized Mercedes-Benz Center as soon as
possible.
In the event of overvoltage or undervoltage:
XRemove the cause of the overvoltage or undervoltage, e.g.
charge the battery or restart the engine.XSwitch ignition off and back on again, and engage or release
electronic parking brake.
If the electronic parking brake still cannot be released:
XContact an authorized Mercedes-Benz Center as soon as
possible.
If overheated:
XLet vehicle cool down, and do not engage electronic parking
brake during this time.
or
XSwitch ignition off and back on again, and engage or release
electronic parking brake.Vehicle status messages in the multifunction display375Practical hintsBA 197 USA, CA Edition A 2011; 1; 27, en-UShereepeVersion: 3.0.3.52010-03-24T15:31:10+01:00 - Seite 375Z