Page 194 of 334

X
Press the 0081or0082 button to select the
Clock/Date
Clock/Date submenu.
X Press the 0063button to select the
12/24 h
12/24 h function.
The selection marker is on the current set-
ting.
X Press the 0081or0082 button to select the
12 h
12 h or24 h
24 h clock format.
Lighting submenu Activating/deactivating Highbeam Assist
Using the steering wheel buttons
X Press the 0080or007F button repeatedly
until the Settings
Settings menu appears in the
display.
X Press the 0063button to switch to the sub-
menu selection.
X Press the 0081or0082 button to select the
Lighting
Lighting submenu.
X Press the 0063button to select the High‐
High‐
beam Assist
beam Assist function.
The selection marker is on the current set-
ting.
X Press the 0081or0082 button to switch
Highbeam Assist On
OnorOff
Off .
i For safety reasons, it is not possible to
reset the Highbeam
Highbeam Assist
Assistfunction to the
factory settings during a journey. You will
see the following message in the display:
Setting only possible at stand‐
Setting only possible at stand‐
still still.
For further information about Highbeam
Assist, see (Y page 96). Switching the daytime running lamps on/
off If you switch the daytime running lamps func-
tion to On
On, the daytime running lamps will
automatically light up when the engine is run- ning.
For safety reasons, it is only possible to
change this setting when the vehicle is sta-
tionary. The factory setting is On Onin countries
in which daytime running lamp mode or day-
time running lamps are mandatory .
Using the steering wheel buttons
X Press the 0080or007F button repeatedly
until the Settings Settings menu appears in the
display.
X Press the 0063button to switch to the sub-
menu selection.
X Press the 0081or0082 button to select the
Lighting
Lighting submenu.
X Press the 0063button to select the Day‐
Day‐
time runn. lamps
time runn. lamps function.
The selection marker is on the current set- ting.
X Press the 0081or0082 button to switch
the daytime running lamps On
OnorOff
Off.
i If you turn the light switch to
0060or
0058, the corresponding lamp switches on. If you turn the light switch to 0058, the
daytime running lamps remain switched
on.
i For safety reasons, it is not possible to
reset the Daytime runn. lamps Daytime runn. lamps function
to the factory setting while the vehicle is in
motion. You will see the following message
in the display: Setting only possible
Setting only possible
at standstill
at standstill. 192
On-board computer (vehicles with steering wheel buttons)On-board computer and displays
Page 204 of 334

Display messages
Possible causes/consequences and
0050
0050Solutions 0099
StArtS RExx StArtS RExx In addition, the yellow
00E2DEF indicator lamp lights up and a
warning tone sequence sounds.
The DEF supply has dropped below the 0.8 US gal (3.0 l) reserve
mark.
After the message appears for the first time, the remaining DEF
supply will last for approximately 1000 miles (1600 km). The
engine can then only be started another 16 times.
The number of remaining engine starts XX XX(1616 to1
1) is shown in the
message every time the engine is started.
X Add at least 2.0 US gal (7.6 l) of DEF (Y page 147).
The 00E2 DEF indicator lamp disappears after no more than
20 seconds after the vehicle has stopped or you have switched
on the ignition or started the engine after refueling. 0099
StArtS IdLE StArtS IdLE If the message
StArtS IdLE
StArtS IdLEis displayed, you cannot drive the
vehicle at a speed exceeding 5 mph (8 km/h).
X Add at least 2.0 US gal (7.6 l) of DEF (Y page 147).
The 00E2 DEF indicator lamp disappears after no more than
20 second safter the vehicle has stopped or you have switched
on the ignition or started the engine after refueling. Err
Err flashes for 5 seconds, the
00CEindicator lamp also flashes and
then goes out.
Highbeam Assist is deactivated and temporarily not operational or
Highbeam Assist is malfunctioning.
Possible causes are:
R The camera's functionality is impaired due to heavy rain, snow or
fog.
R The windshield is dirty in the camera's field of vision.
X Stop the vehicle paying attention to road and traffic conditions.
X Secure the vehicle to prevent it from rolling away (Y page 149).
X Clean the windshield (Y page 267), particularly in the camera's
field of vision.
If the 00CE indicator lamp goes out, Highbeam Assist is opera-
tional again.
If the problem persists, visit a qualified specialist workshop. 202
Display messagesOn-board computer and displays
Page 211 of 334

Display messages
Possible causes/consequences and
0050
0050Solutions 0049
Third brake lamp Third brake lamp The high-mounted brake lamp is faulty
3
. This display message will
only appear if all LEDs have failed.
X Consult a qualified specialized workshop as soon as possible. 0049
High beam left High beam left The left high-beam headlamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 100).0049
High beam right High beam right The right high-beam headlamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 100).0049
License plate lamp License plate lamp A license plate lamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 103).0049
Switch off lights Switch off lights You have forgotten to switch off the lights when leaving the vehi-
cle.
X Turn the light switch to 003F.0049
Foglamp front left Foglamp front left The left-hand front fog lamp is faulty.
3
X Have the bulb replaced as soon as possible at a qualified spe-
cialist workshop. 0049
Foglamp Foglamp
front
frontright
right The right-hand front fog lamp is faulty
3
.
X Have the bulb replaced as soon as possible at a qualified spe-
cialist workshop. 0049
Rear foglamp Rear foglamp The rear foglamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 103).0049
Parking Parking
lamp
lampfront
front
left
left The front left parking lamp/standing lamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 100).0049
Parking Parking
lamp
lampfront
front
right
right The front right parking lamp/standing lamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 100).0049
Reverse lamp Reverse lamp A reversing lamp is faulty
3
.
X Replace the bulb as soon as possible (Y page 103).3
Depending on the equipment, the bulb-failure indicator may not be featured for any lamps other than the turn
signals. Display
messages
209On-board computer and displays Z
Page 212 of 334

Display messages
Possible causes/consequences and
0050
0050Solutions 0049
Tail lamp left Tail lamp left The left-hand tail lamp is faulty.
3
X Replace the bulb as soon as possible (Y page 103).0049
Tail lamp right Tail lamp right The right-hand tail lamp is faulty.
3
X Replace the bulb as soon as possible (Y page 103).0049
Perim. lamps Perim. lamps A perimeter lamp is faulty.
3
X Replace the bulb as soon as possible (Y page 105).Highbeam Assist
Highbeam Assist
inoperative inoperative Highbeam Assist is faulty.
X Visit a qualified specialist workshop. Highbeam Assist
Highbeam Assist
temporarily temporarily
unavailable unavailable Highbeam Assist is deactivated and temporarily inoperative.
Possible causes are:
R The camera's functionality is impaired due to heavy rain, snow or
fog.
R The windshield is dirty in the camera's field of vision.
X Stop the vehicle paying attention to road and traffic conditions.
X Secure the vehicle to prevent it from rolling away (Y page 149).
X Clean the windshield (Y page 267), particularly in the camera's
field of vision.
If the malfunction has been rectified, the Highbeam Assist Highbeam Assist
Now Available
Now Available message appears. 3
Depending on the equipment, the bulb-failure indicator may not be featured for any lamps other than the turn
signals. 210
Display
messagesOn-board computer and displays
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