2017 MERCEDES-BENZ B-Class message

Display messages
Possible causes/consequences and
0050
0050Solutions Front
Front
Passenger
Passenger Air‐
Air‐
bag Enabled See
bag Enabled See
Operator's Manual Operator's Manual The front-passenger front air bag is enabled during the journey, even
though:
R a child, a small adult or an object weighing less than the system's
weight threshold is located on the front-passenger seat
or
R the front-passenger seat is unoccupied
The system may detect objects or forces applying additional weight on
the seat.
G WARNING
The front-passenger front air bag may deploy unintentionally.
There is an increased risk of injury.
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 128).
X Switch the ignition off.
X Open the front-passenger door.
X Remove the child and the child restraint system from the front-
passenger seat.
X Make sure that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and inter-
pret the seat occupant's weight as greater than it actually is.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
X Observe the PASSENGER AIR BAG indicator lamps in the center
console and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
R a self-diagnosis is carried out. The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps must light up simulta-
neously for approximately six seconds
R the PASSENGER AIR BAG OFF indicator lamp must then light up
and remain lit after the self-diagnosis. If the indicator lamp is on, OCS has disabled the front-passenger front air bag (Y page 46)
R The Front Passenger Airbag Enabled See Operator's
Front Passenger Airbag Enabled See Operator's
Manual
Manual orFront Passenger Airbag Disabled See Opera‐ Front Passenger Airbag Disabled See Opera‐
tor's Manual
tor's Manual display messages must not be shown in the mul-
tifunction display
X Wait for a period of at least 60 seconds until the necessary system
checks have been completed.
X Make sure that the display messages do not appear in the multi-
function display.
If these conditions are fulfilled, the front-passenger seat can be occu-
pied again. Whether the PASSENGER AIR BAG OFF or ON indicator
lamp remains lit or goes out depends on how OCS classifies the occu-
pant.
If the conditions are not fulfilled, the system is not operating correctly. Display
messages
177On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions X
Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System, see (Y page 46). Lights
i Vehicles with LED bulbs in the light clusters:
The display message for the corresponding lamp only appears when all of the LEDs in the lamp
have failed. Display messages
Possible causes/consequences and
0050 0050Solutions 0049
Check Left Corner‐ Check Left Corner‐
ing Light ing Light
orCheck
Check
Right Cornering
Right Cornering
Light Light The left or right-hand cornering light is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or X Visit a qualified specialist workshop. 0049
Check Check
Left
Left Low
LowBeam
Beam
or Check Right Low
Check Right Low
Beam
Beam The left or right-hand low-beam headlamp is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or X Visit a qualified specialist workshop. 0049
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right
Check Rear Right
Turn Signal Turn Signal The rear left-hand or rear right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Turn Signal Turn Signal
or
Check Front Right
Check Front Right
Turn Signal Turn Signal The front left-hand or front right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
Check Left Mirror Check Left Mirror
Turn Signal Turn Signal
or
Check Right Mirror
Check Right Mirror
Turn Signal Turn Signal The turn signal in the left-hand or right-hand exterior mirror is defec-
tive.
X Visit a qualified specialist workshop. 0049
Check Center Brake Check Center Brake
Lamp Lamp The high-mounted brake lamp is faulty.
X
Visit a qualified specialist workshop. 178
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions 0049
Check Left Brake Check Left Brake
Lamp Lampor
Check Right
Check Right
Brake Lamp
Brake Lamp The left or right-hand brake lamp is defective.
X Visit a qualified specialist workshop. 0049
Check Left High Check Left High
Beam Beam
orCheck Right
Check Right
High Beam
High Beam The left or right-hand high beam is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
License Plate Lamp License Plate Lamp The left or right-hand license plate lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or X Visit a qualified specialist workshop. 0049
Rear Fog Lamp Rear Fog Lamp The rear fog lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Parking Lamp Parking Lamp
or
Check Front Right
Check Front Right
Parking Lamp Parking Lamp The front left or front right parking or standing lamp is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
Backup Light Backup Light The backup lamp is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
Check Left Tail Check Left Tail
Lamp Lamp
orCheck Right
Check Right
Tail Lamp
Tail Lamp The left or right-hand tail lamp is defective.
X Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Sidemarker Lamp Sidemarker Lamp
or
Check Front Right Check Front Right
Sidemarker Lamp Sidemarker Lamp The front left-hand or front right-hand side marker lamp is faulty.
X
Visit a qualified specialist workshop. Display
messages
179On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 0049
Check Rear Left Check Rear Left
Sidemarker Lamp Sidemarker Lamp
or
Check Rear Right
Check Rear Right
Sidemarker Lamp Sidemarker Lamp The rear left-hand or rear right-hand side marker lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 90).
or
X Visit a qualified specialist workshop. 0049
Check Left Daytime Check Left Daytime
Running Light Running Light
or
Check
Check Right
RightDaytime
Daytime
Running Light
Running Light The left or right-hand daytime running lamp is faulty.
X Visit a qualified specialist workshop. 0049
Active Headlamps Active Headlamps
Inoperative Inoperative The active light function is faulty.
X Visit a qualified specialist workshop. 0049
Malfunction See Malfunction See
Operator's Manual Operator's Manual The exterior lighting is malfunctioning.
X Visit a qualified specialist workshop. 0049
Auto Lamp Function Auto Lamp Function
Inoperative Inoperative The light sensor is defective.
X Visit a qualified specialist workshop. 0049
Switch Off Lights Switch Off Lights The lights are still switched on when you leave the vehicle. A warning
tone also sounds.
X Turn the light switch to the 0058position. 0049
Switch On Headlamps Switch On Headlamps You are driving with low-beam headlamps switched off.
X Turn the light switch to the 0058or0058 position. 180
Display
messagesOn-board computer and displays

Drive system
Display messages
Possible causes/consequences and
0050
0050Solutions 00BD
Check Coolant See Check Coolant See
Operator's Manual Operator's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the cooling
system. The drive system will otherwise be damaged.
X If the coolant needs topping up more often than usual, have the
cooling system checked at a qualified specialist workshop. 003D
See Operator's Man‐ See Operator's Man‐
ual ual The 12 V battery is no longer being charged.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 128).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. 003D
Stop Vehicle See Stop Vehicle See
Operator's Manual Operator's Manual The 12 V battery is no longer being charged and the battery charge
level is too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 128).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. High-voltage battery
Display messages
Possible causes/consequences and
0050 0050Solutions 00D9
Battery Reserve Battery Reserve
Level Level The condition of charge of the high-voltage battery has dropped into
the reserve range.
When the remaining range is 0 km, the message appears again. The
power available is then continuously reduced. The reduction in power
is represented in the E-CELL display (Y page 152).
X Charge the high-voltage battery. 00D7
Batterieleistung Batterieleistung
zu
zu
gering, Anhalten,
gering, Anhalten,
sofort laden sofort laden(Battery
capacity too low. Stop
Charge immediately) A warning tone also sounds. The E
‑CELL display (Ypage 152) and the
charge level display (Y page 153) go down to 0. The condition of
charge of the high-voltage battery is so low that operation is no longer
possible. The drive system cannot be restarted.
If you then try to restart the drive system, the Batterieleistung
Batterieleistung zu zu
gering,
gering, Anhalten,
Anhalten, sofort
sofortladen
laden(Battery capacity too low. Stop
Charge immediately) message appears.
X Park the vehicle and charge the high-voltage battery. Display
messages
181On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 00F0
Malfunction Visit Malfunction Visit
Workshop Workshop Malfunctions are present in the drive system and/or in the cooling
system.
X Visit a qualified specialist workshop immediately. Without starting Without starting
engine again, con‐ engine again, con‐
sult workshop sult workshop The vehicle's high-voltage electrical system is malfunctioning. A warn-
ing tone also sounds.
X Do not switch off the drive system.
X Visit a qualified specialist workshop immediately. 00F0
Stop Switch Engine Stop Switch Engine
Off Off There is a serious malfunction in the drive system. A warning tone also
sounds.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Do not tow the vehicle.
X Consult a qualified specialist workshop immediately. Driving systems
Display messages
Possible causes/consequences and
0050 0050Solutions 00AD
Attention Assist: Attention Assist:
Take a Break! Take a Break! Based on certain criteria, ATTENTION ASSIST has detected fatigue or
a lack of concentration on the part of the driver. A warning tone also
sounds.
X If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest. 00AD
Attention Assist Attention Assist
Inoperative Inoperative ATTENTION ASSIST is inoperative.
X Visit a qualified specialist workshop. 00D9
Off Off The HOLD function is deactivated. the vehicle is skidding.
A warning tone also sounds.
X Reactivate the HOLD function later (Y page 138). The HOLD function is deactivated. When the brake pedal is firmly
depressed, an activation condition is not fulfilled.
A warning tone also sounds.
X Check the activation conditions for the HOLD function
(Y page 138). 182
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions Blind Spot Assist
Blind Spot Assist
Currently Unavaila‐ Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Blind Spot Assist is temporarily inoperative.
Possible causes are:
R the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
R the radar sensor system is outside the operating temperature range
The yellow 0063indicator lamps also light up in the exterior mirrors.
When the causes stated above no longer apply, the display message
disappears.
Blind Spot Assist is operational again.
If the display message does not disappear:
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 128).
X Start the drive system again. Blind Spot Assist Blind Spot Assist
Inoperative Inoperative Blind Spot Assist is faulty.
The yellow
0063indicator lamps also light up in the exterior mirrors.
X Visit a qualified specialist workshop. Parking Pilot Can‐ Parking Pilot Can‐
celed celed The driver's door is open and the driver's seat belt has not been fas-
tened.
X Repeat the parking process with the seat belt fastened and the
driver's door closed. You have inadvertently touched the multifunction steering wheel while
steering intervention was active.
X While steering intervention is active, make sure that the multifunc-
tion steering wheel is not touched unintentionally. The vehicle has started to skid and ESP
®
has intervened.
X Use Parking Pilot again later (Y page 142).Parking Pilot Inop‐
Parking Pilot Inop‐
erative erative You have just carried out a large number of turning or parking maneu-
vers.
Parking Pilot will become available again after approximately ten
minutes (Y page 142).
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Switch off the drive system and start it again.
If the multifunction display still shows the display message: X Visit a qualified specialist workshop. Parking Assist PARKTRONIC is malfunctioning.
X Visit a qualified specialist workshop. Display
messages
183On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions Parking Pilot Fin‐
Parking Pilot Fin‐
ished ished The vehicle is parked. A warning tone also sounds.
The display message disappears automatically. Cruise
Cruise
Control
Control Inop‐
Inop‐
erative
erative Cruise control is malfunctioning.
A warning tone also sounds.
X Visit a qualified specialist workshop. Cruise Control Cruise Control
- - - mph - - - mph R
A condition for activating cruise control has not been fulfilled.
You have tried to store a speed below 20 mph (30 km/h), for exam-
ple.
R ESP ®
is deactivated. The yellow ESP ®
OFF warning lamp is lit.
X If conditions permit, drive faster than 20 mph (30 km/h) and store
the speed.
or X Check the activation conditions for cruise control (Y page 136).
or X Reactivate ESP ®
(Y page 162). 184
Display
messagesOn-board computer and displays