MERCEDES-BENZ B-Class 2017 W246 Owner's Manual
Manufacturer: MERCEDES-BENZ, Model Year: 2017, Model line: B-Class, Model: MERCEDES-BENZ B-Class 2017 W246Pages: 290, PDF Size: 19.81 MB
Page 181 of 290

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
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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
Page 183 of 290

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
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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
Page 185 of 290

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
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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
Page 187 of 290

Tires
Display messages
Possible causes/consequences and
0050
0050Solutions Please
Please
Correct
Correct Tire
Tire
Pressure
Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressures at the next opportunity (Y page 263).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 265).Check Tires Check Tires The tire pressure in one or more tires has dropped significantly. The
wheel position appears in the multifunction display.
A warning tone also sounds.
G WARNING
Tire pressures that are too low pose the following hazards: R they may burst, especially as the load and vehicle speed increase
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 128).
X Check the tires and, if necessary, follow the instructions for a flat
tire (Y page 241).
X Check the tire pressure (Y page 263).
X If necessary, correct the tire pressure. Warning Tire Mal‐ Warning Tire Mal‐
function function The tire pressure in one or more tires has dropped suddenly. The wheel
position appears in the multifunction display.
G WARNING
Driving with a flat tire poses a risk of the following hazards: R a flat tire affects the ability to steer or brake the vehicle
R you could lose control of the vehicle
R continued driving with a flat tire will cause excessive heat build-up
and possibly a fire
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 128).
X Check the tires and, if necessary, follow the instructions for a flat
tire (Y page 241). Display
messages
185On-board computer and displays Z
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Display messages
Possible causes/consequences and
0050
0050Solutions Tire
Tire
Press.
Press. Monitor
Monitor
Currently Unavaila‐
Currently Unavaila‐
ble ble Because there is interference from a strong source of radio waves, no
signals from the tire pressure sensors are detected. The tire pressure monitor is temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been resolved. TirePress. Sen‐ TirePress. Sen‐
sor(s) Missing sor(s) Missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire does not appear in the mul-
tifunction display.
X Have the faulty tire pressure sensor replaced at a qualified special-
ist workshop. Tire Pressure Moni‐ Tire Pressure Moni‐
tor Inoperative No tor Inoperative No
Wheel Sensors Wheel Sensors The wheels mounted do not have a suitable tire pressure sensor. The
tire pressure monitor is deactivated.
X Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving for a few minutes. Tire
Tire
Press.
Press. Monitor
Monitor
Inoperative
Inoperative The tire pressure monitor is faulty.
X Visit a qualified specialist workshop. Vehicle
Display messages
Possible causes/consequences and
0050
0050Solutions Depress Brake to
Depress Brake to
Start Engine Start Engine You have attempted to start the drive system with the transmission in
position Nwithout depressing the brake pedal.
X Depress the brake pedal. To
To
Deselect
Deselect P
Por
or N,
N,
Depress Brake and
Depress Brake and
Start Engine Start Engine You have attempted to shift the transmission to position
Ror Dwith-
out starting the drive system.
X Start the drive system.
X Depress the brake pedal.
i It is only possible to shift the transmission from position
Pto the
desired position if you depress the brake pedal. Only then can the
parking lock be deactivated. If you do not depress the brake pedal,
the DIRECT SELECT lever can still be moved but the parking lock
remains engaged.
i At transmission fluid temperatures below
00F84 ‡ (00F820 †) you can
only shift out of position Pinto another transmission position when
the engine is running. Apply Brake to
Apply Brake to
Shift from 'P' Shift from 'P' You have attempted to shift the transmission to position
R,Nor D
without depressing the brake pedal.
X Depress the brake pedal. 186
Display
messagesOn-board computer and displays
Page 189 of 290

Display messages
Possible causes/consequences and
0050
0050Solutions Transmission
Transmission
Not
Notin
in
P Risk of Vehicle
P Risk of Vehicle
Rolling Away Rolling Away The driver's door is open or not fully closed and the transmission is in
position R,Nor D.
A warning tone also sounds.
G WARNING
The vehicle may roll away.
There is a risk of an accident.
X Shift the transmission to position P.
X Secure the vehicle against rolling away (Y page 128).
X Close the driver's door completely. Service
Service
Required
Required Do
Do
Not Shift Gears
Not Shift Gears
Visit Dealer Visit Dealer You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position
Dis selected:
X Drive to a qualified specialist workshop without shifting the trans-
mission from position D.
If transmission position R,Nor Pis selected:
X Secure the vehicle against rolling away (Y page 128).
X Notify a qualified specialist workshop or breakdown service.
X Do not tow the vehicle. Only Shift to 'P' Only Shift to 'P'
when when
Vehicle
Vehicle is
isSta‐
Sta‐
tionary
tionary The vehicle is moving.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Shift the transmission to position P.0065 The tailgate is open.
X Close the tailgate. 0066 The hood is open.
A warning tone also sounds.
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 128).
X Close the hood. 0051 At least one door is open. A warning tone also sounds.
X Close all the doors. Display
messages
187On-board computer and displays Z
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Display messages
Possible causes/consequences and
0050
0050Solutions 00CC
Power Steering Mal‐ Power Steering Mal‐
function See Opera‐ function See Opera‐
tor's Manual tor'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.
If you are able to steer safely:
X Drive on carefully.
X Visit a qualified specialist workshop immediately.
If you are unable to steer safely:
X Do not drive on.
X Consult a qualified specialist workshop. Phone No Service 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 Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped below
the minimum.
X Add washer fluid (Y page 232).Wiper Malfunction‐
Wiper Malfunction‐
ing ing The windshield wipers are malfunctioning.
X Visit a qualified specialist workshop. Hazard Warning
Hazard Warning
Flashers Malfunc‐ Flashers Malfunc‐
tioning tioning The hazard warning lamps are faulty.
X Visit a qualified specialist workshop. 00EC
Charger Cable Con‐ Charger Cable Con‐
nected nected The charging cable is still connected to the vehicle socket.
X Remove the charging cable from vehicle socket. 188
Display
messagesOn-board computer and displays