Displa
ymessages Possible causes/consequences and
M Solutions
b
Le
ft daytim edriv‐ ing lamp or
Ri ght daytim
edriving lamp Th
eleft-han dorright-hand daytime drivin glamp is faulty.
X Chec kwhether you ar epermitted to replace the bulb yourself
(Y page 129).
or
X Visit aqualified specialist workshop. b
Intell
.Light Sys‐ tem inoperative Th
eI ntelligent Light Syste misfaulty. The lights remain available
without the Intelligent Light System.
X Visit aqualified specialist workshop. b
Malfunctio
nSee Owner's Manual Th
ee xterior lighting is faulty.
X Visit aqualified specialist workshop. Vehicles with trailer tow hitch:
afuse may have blown.
X Check the fuses (Y page 391).
X If necessary, replace the blown fuse. Observe the warning notes
as you do so.
If the displa ymessage continues to be displayed:
X Visit aqualified specialist workshop. b
AUTO
lights inoper‐
ative The light senso
risf aulty.
X Visit aqualified specialist workshop. b
Switch of
flights Th
elights are still switched on when you leave the vehicle. A
warnin gtone also sounds.
X Tur nthe light switc htoÃ. Adaptive Main-beam
Assist inoperative Adaptive Highbea
mAssist is faulty.
X Visit aqualified specialist workshop. Adaptive Main-beam
Assist currently
unavailabl
eSee Owner's Manual Adaptive Highbea
mAssist is deactivate dand temporarily inoper-
ative. Possible causes:
R the windscreen is dirty in the camera's field of vision.
R visibility is impaired due to heavy rain, sno worfog.
X Clean the windscreen.
If the system detec tsthat the camera is fully operational again,
the Adaptive Main-beam Assist available again message
is displayed.
Adaptive Highbeam Assist is operational again. Display messages
303On-board computer and displays Z
Displa
ymessages Possible causes/consequences and
M Solutions
Sp
eed Limit Assist
currently unavail‐
abl
eS ee Owner's Manual Spee
dLimit Assist is deactivated an dtemporarily inoperative.
Possible causes:
R the windscreen is dirt yinthe camera's field of vision.
R visibility is impaired due to heav yrain, snow or fog.
X Clea nthe windscreen.
If the system detec tsthat the camera is fully operational, the dis-
play message disappears.
Speed Limit Assist is operational again. Speed Limit
Assist
:Unavaila‐ ble in this country Spee
dLimit Assist is only available in certain countries.
X Driv eon.
Spee dLimit Assist is available again as soon as you drive in a
countr yinwhich its use is approved. Speed Limit Assist
inoperative Speed Limi
tAssist is faulty.
X Visit aqualified specialist workshop. ë
Off The HOLD function is deactivated. The vehicle is skidding.
Aw
arning ton ealso sounds.
X Reactivat ethe HOL Dfunction later (Y page 211). Ra
dars ensor deac‐ tivate
dSee Own‐ er'
sM anual Th
er adar sensor system is deactivated.
X Check whether or not the radar sensor system ma ybeactivated
(Y pag e433).
X Switch on the rada rsensor system (Y page 283). Rada
rsensor deac‐ tivated autom. See
Owner's Manual Vehicles with
anavigation system: the vehicle is close to aradio
telescop efacility and is therefore prohibite dfrom transmitting any
radar signals .The radar sensor system has switched off automat-
ically (Y page 433).
If DI STRONIC PLUS was enabled, it is no longe ravail able. Aw arn-
ing ton ealso sounds.
If Blin dSpotA ssist or Ac tiveBlind Spo tAssist was enabled, it is
no longe ravailable .The yellow 9indicator lamps also light up
in the exterior mirrors.
BA SP LUS (Brake Assist PLUS) and PRE-SAFE ®
Brak eare then also
no longe ravailable.
X Drive on.
Once yo uhave moved far enough awa yfrom th eradio telescope,
the above function sare avai lable again. 310
Display messagesOn-board computer and displays
