Page 536 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions
Check tyre pressures then
restart Run Flat Indicator 0007
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (0013 page 457).
Run Flat Indicator inopera-
tive *T
he tyre pressure loss warning sy stem is malfunctioning. 0007
Consult a qualified specialist workshop. Key
Display messages
Possible causes/consequences and 0050 0050Solutions
00AF Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. 0007
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. 0007
Place theke y in the slot forst arting the engine with theke y (0013 page169). Displ
aymessa ges and warning/indicator lamps 533
Page 537 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions
00AF Replace key *T
hekey needs tobe replaced. 0007
Consult a qualified specialist workshop.
00AF Key not detected (white
display message) *T
hekey is cur rently und etected. 0007
Change the location of theke y in theve hicle. 0007
Ifth eke y is still not recognised, start the engine with theke y in the slot (0013 page169).
00AF Change key batteries *T
hekey bat tery is dischar ged. 0007
Replace the battery (0013 page75).
00AF
Place the key in the
marked space See Owner's
Manual *T
hekey de tection function is malfunctioning. 0007
Change the location of theke y in theve hicle. 0007
Start theve hicle with theke y in the slot (0013 page169). 534
Displaymessa ges and warning/indicator lamps
Page 538 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions
, Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. 0007
Make sure that the internet connection is not limited bycer tain mobile phone settings. 0007
Open the Mercedes me connect http://www.mercedes.me and call up the digital vehicle key service. 0007
Deactivate the service firs t and then activate it again. 0007
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC).
Ve hicles with a digital vehicle keyst icke r:on lyafe w or no authorisations remain forst arting the engine. 0007
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect. Ve
hicle Display messages
Possible causes/consequences and 0050 0050Solutions
00CA Trailer coupling extending… *E
xtending or retracting the ball nec k.
Do not attem pttospeed up, slow down or initiate there tracting or extending process using your hand, foot or other
aids. During there tracting or extending process, do not couple a traile r.
When the ball neck has reached an operational position, the display message disappears.
00CA *
Yo u ha veattem pted todisplace the ball neck and the transmission is in position 005E,005Cor005B. 0007
Depress the brake pedal. 0007
Shift the transmission toposition 005D. Display messages and
warning/indicator lamps 535
Page 539 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions
Operation only possible in
transmission position P
00CA
Operation only possible in
transmission position N *
Ve hicles with manual transmission: you attem ptedto swivel the ball neck and the transmission is not in neutral
005C. 0007
Shift the transmission toneutral 005C.
00CA Check trailer hitch lock
(whi tedisplay message) *T
he trailer tow hit chis not operational when you are driving with a trailer. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 0007
Uncouple the trailer and secure it against rolling away. 0007
Initiate a new swivelling procedure (0013 page 262). 0007
Ifth e ball neck is extended, press and hold the button on the boot lid until the ball neck engages beneath the
bumper. 0007
When the display message disappears, couple up the trailer and drive on. 000A
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. 536
Display messa ges and warning/indicator lamps
Page 542 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions
Steering malfunction
Increased physical effort
See Owner's Manual 0007
If safe steering is possible, drive on carefully. 0007
Visit or consult a qualified specialist workshop immediatel y. 0007
If safe steering is possible, drive on carefully. 0007
Visit or consult a qualified specialist workshop immediatel y.
Active bonnet malfunction
See Owner's Manual *T
he active bonnet (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. 0007
Consult a qualified specialist workshop.
0083 *T
he bonnet is open. 000A
WARNING Risk of accident due todriving with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up when theve hicle is in motion and block your vie w. 0007
Never unlock the engine bonn etwhen driving. 0007
Before every trip, ensure that the engine bonn etis loc ked. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions. 0007
Close the bonn et.
0051 *A
t least one door is open. 0007
Close all doors.
0084 *T
he boot lid is open. Display messages and
warning/indicator lamps 539
Page 543 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions 000A
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if the boot lid is open when the engine is running, especially if theve hicle is in motion. 0007
Alw ays switch off the engine before opening the boot lid. 0007
Never drive with the boot lid open. 0007
Close the boot lid.
00B2 Top up washer fluid *T
hewasher fluid le vel in thewa sher fluid reser voir has dropped below the minimum. 0007
Top up thewa sher fluid (0013 page414). Cli
mate control Displ
aymessages
Possible causes/consequences and 0050
0050Solutions
003B *T
hestationary heater is temp orarily malfunctioning. 0007
When theve hicle is on a le vel sur face and the engine has cooled down, make up tofour attem ptsto switch on
th est ationary heater, waiting se veral minutes between each attem pt. 0007
Ifth est ationary heater does not swit chon, consult a qualified specialist workshop. 540
Displaymessa ges and warning/indicator lamps
Page 548 of 609
Display messages
Possible causes/consequences and 0050
0050Solutions
Adaptive Highbeam Assist
Plus Camera view restric-
ted See Owner's Manual R
heavy rain, snow or fog
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: 0007
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. 0007
Clean the windscreen. Wa
rning and indicator lamps Overview of
warning and indicator lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some warning and indi‐
cator lamps may brief lylight up or flash. This
behaviour is non-critical. These warning and indi‐
cator lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y. Instrument display (standard) Instrument display in
the widescreen cockpit Display messages and
warning/indicator lamps 545
Page 549 of 609
Wa
rning and indicator lamps:
0058 Low beam (0013
page135)
0060 St
anding lights (0013 page135)
0057 High beam (0013
page137)
003E003D Tu
rn signal indicator
(0013 page137)
005E Re
ar fog light (0013 page135)
0075 Re
stra int sy stem (0013 page546)
00E9 Seat belt not
fastened
(0013 page 552)
004D Brakes (yellow) (0013
page546)
004D Brakes (red) (0013
page546)
0024 Electric pa
rking brake (yellow)
(0013 page546) 0024
Electric parking brake (red)
(0013
page546)
0025 ABS malfunction (0013
page 546)
00E5 ESP®
(0013 page 546)
00BB ESP®
OFF (0013 page546)
L Distance warning (0013 page 552)
00CC Po
we r-assis tedsteering malfunction
(0013 page 557)
00CC AIRMATIC malfunction
(0013
page 552)
00CC DY
NA MIC BODY CONTROL malfunc‐
tion (0013 page 552)
00B9 Engine diagnostics (0013
page 553)0028
Preglow
003D Electrical
fault( 0013 page 553)
00B6 Fu
elreser vewith fuel filler flap loca‐
tion indicator (0013 page 553)
00AC Coolant
too hot/cold
(0013 page 553)
0077 Ty
re pressure monitor
(0013 page 556)
00CA Tr
ailer hit chis not operational or is
swivelling(0013 page 557)Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
004D The
red brake sy stem warning lamp is lit while the engine is running.
Po ssible causes:
R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected. 546
Displaymessa ges and warning/indicator lamps
