MERCEDES-BENZ C-CLASS COUPE 2021 Owners Manual

Display messages
Possible causes/consequences and M
MSolutions
é ATTENTION ASSIST inoper-
ative *A
TTENTION ASSIST is malfunctioning. #
Consult a qualified specialist workshop.
é ATTENTION ASSIST: Take a
break! *A
TTENTION ASSIST has de tected fatigue or an increasing la ckof concentration on the part of the driver
(/ page 181). #
If necessa ry,ta ke a break.
¯
- - -km/h *C
ruise control cannot be activated as not all activation conditions are fulfilled. #
Obser vethe activation conditions for cruise control (/ page184).
Cruise control inoperative *C
ruise control is malfunctioning. #
Consult a qualified specialist workshop.
Cruise control and Limiter
inoperative *C
ruise control and the limiter are malfunctioning. #
Consult a qualified specialist workshop. 458
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Cruise control off *C
ruise control has been deactivated.
If th ere is an additional warning tone, cruise control has been deacti vated automatically (/ page183).
È - - -km/h *T
he limiter can temp orarily not be engaged. Once the cause of the problem is no longer present, the sy stem will be
av ailable again.
Limiter passive *I
fyo u depress the accelera tor pedal be yond the pressure point (kickdown), the limiter is switched topassive mode
(/ page 184).
Limiter inoperative *T
he limiter is malfunctioning. #
Consult a qualified specialist workshop.
ç - - - km/h *A
ctive Dis tance Assi stDISTRONIC cannot be acti vated as not all activation conditions are fulfilled. #
Comply with the activation conditions of Active Dis tance Assi stDISTRONIC (/ page 189).
ç suspended *I
fyo u depress the accelera tor pedal be yond the setting of Active Dis tance Assi stDISTRONIC, the sy stem will
switch topassive mode (/ page186). Displ
aymessa ges and warning/indicator lamps 459

Display messages
Possible causes/consequences and M
MSolutions
ç Off *A
ctive Dis tance Assi stDISTRONIC was deactivated. If a warning tone also sounds, Active Dis tance Assi st
DISTRONIC has deacti vated automatically (/ page189).
Active Distance Assist cur-
rently unavailable See Own-
er's Manual *A
ctive Dis tance Assi stDISTRONIC is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page186).
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Drive on.
Active Distance Assist inop-
erative *A
ctive Dis tance Assi stDISTRONIC is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. #
Consult a qualified specialist workshop.
Active Distance Assist
available again *A
ctive Dis tance Assi stDISTRONIC is operational again. #
Switch on Active Dis tance Assi stDISTRONIC (/ page 189).
ð Ma ximum speed exceeded *Y
ou ha veexceeded the maximum permissible speed (for cer tain countries only). #
Drive more slowl y.460
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Speed limit (winter tyres)
XXX km/h *Y
ou ha vereached the maximum permissible stored speed for winter tyres. It is not possible toexceed this speed.
Active Steering Assist cur-
rently unavailable See Own-
er's Manual *A
ctive Steering Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page193).
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Drive on. #
If necessar y,clean the windscreen in the camera's field of vision. #
Check the tyre pressure if necessar y.
Active Steering Assist inop-
erative *A
ctive Steering Assist is malfunctioning. Active Dis tance Assi stDISTRONIC remains available. #
Consult a qualified specialist workshop.
Active Steering Assist cur-
rently unavailable due to
multiple emergency stops *A
ctive Steering Assist is temp orarily una vailable due tomultiple emergency stops. #
Take ove rth esteering and stop in accordance with the tra ffic conditions. #
Swit chthe ignition off and switch it back on.
Ac tive Steering Assist is available once more.
Beginning emergency stop *Y
our hands are not on thesteering wheel. An emer gency stop is being initiated (/ page195). #
Put your hands back on thesteering wheel.
Yo u can cancel the deceleration at any time byper form ing one of thefo llowing actions:
R Steering Display messages and
warning/indicator lamps 461

Display messages
Possible causes/consequences and M
MSolutions
R Braking or accelerating
R Deactivating Active Dis tance Assi stDISTRONIC
Ø *A
ctive Steering Assist has reached the sy stem limits (/ page193).
Yo u ha venot steered independently for a considerable period of time. #
Take ove rth esteering and drive on in accordance with the traf fic conditions.
Traffic Sign Assist currently
unavailable See Owner's
Manual *T
raffic Sign Assist is temp orarily una vailable.
Once the cause of the problem is no longer present, the sy stem will be available again. #
Drive on. #
Ifth e display message does not disappear, stop theve hicle safely and clean the windscreen.
Traffic Sign Assist inopera-
tive *T
raffic Sign Assist is malfunctioning. #
Stop theve hicle in accordance with the tra ffic conditions and restart the engine. #
Ifth e display message still appears, consult a qualified specialist workshop.
Traffic Sign Assist Camera
view restricted See Own-
er's Manual *T
he camera view is restricted. Possible causes:
R Dirt on the windscreen in the camera's field of vision
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, the driving sy stems and driving saf ety sy stems will be available
again. 462
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean the windscreen.
Blind Spot Assist currently
unavailable See Owner's
Manual *B
lind Spot Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (/ page 202).
Once the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine. #
If necessar y,clean there ar bumper. If the bumper is especially dirty, the sensors in the bumper may be mal‐
functioning.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Consult a qualified specialist workshop.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you es tablish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the left-hand Touch Control and ackn owledge the display message. Display messages and
warning/indicator lamps 463

Display messages
Possible causes/consequences and M
MSolutions
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assi stistemp orarily una vailable.
The sy stem limits ha vebeen reached (/ page 202).
Once the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assi stis malfunctioning. #
Consult a qualified specialist workshop.
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you es tablish the electrical connection tothe trailer, Active Blind Spot Assi stwill be una vailable. #
Press the left-hand Touch Control and ackn owledge the display message.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctive Lane Keeping Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page 205).
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again.
Ve hicles with Active Steering Assis t:the camera view may be limited bythe windscreen. #
Drive on. 464
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Ve hicles with Active Steering Assis t:ifth e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean the windscreen.
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Consult a qualified specialist workshop.
Active Lane Keeping Assist
Camera view restricted
See Owner's Manual *
Ve hicles without Active Steering Assis t:the camera view is restricted.
Po ssible causes:
R Dirt on the windscreen in the camera's field of vision
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, the driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean the windscreen. Display messages and
warning/indicator lamps 465

Display messages
Possible causes/consequences and M
MSolutions
ä Fault Drive at max. 80
km/h *A
IRMATIC is functioning only toa limited extent. The vehicle's handling characteristics may be af fected.
* NO
TEThe tyres on the front axle or thefe nde rscould be damaged bylarge steering mo vements #
Avoid large steering mo vements while driving and lis tenfo r scraping sounds. #
Ifyo u hear sc raping sounds, pull over and stop theve hicle in accordance with the tra ffic conditions, and
set a higher vehicle le vel if possible. #
Drive in a manner appropriate forth e cur rent le vel, but do not exceed 80 km/h. #
Consult a qualified specialist workshop.
*D YNAMIC BODY CONT ROL is malfunctioning. The vehicle's handling characteristics may be af fected. #
Do not drive at speeds grea terth an 80 km/h. #
Consult a qualified specialist workshop.
É Stop vehicle Vehicle too
low *Y
ou ha vepulled away despite theve hicle le vel being too lo w. #
Stop theve hicle in accordance with the tra ffic conditions.
The vehicle will be raised tothe selected vehicle le vel. #
Wait until the display message disappears before pulling away.
If th e display message does not disappear and a warning tone also sounds, AIRMATIC is malfunctioning: #
Do not drive at speeds grea terth an 80 km/h and consult a qualified specialist workshop immediately. 466
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
* NO
TEThe tyres on the front axle or thefe nde rscould be damaged bylarge steering mo vements #
Avoid large steering mo vements while driving and lis tenfo r scraping sounds. #
Ifyo u hear sc raping sounds, pull over and stop theve hicle in accordance with the tra ffic conditions, and
set a higher vehicle le vel if possible. #
Set a higher vehicle le vel (/ page 209).
Depending on the malfunction, theve hicle will be raised.
¢
Lowering *T
hevehicle le vel will lo werfo rth efo llowing reasons:
R You ha veselected a dif fere nt drive program.
R You ha veexc eeded the speed limit.
R You ha vechanged theve hicle le velby pressing the button.
É Vehicle rising *Y
our vehicle is adjusting tothe le velyo u ha veselected. Display messages and
warning/indicator lamps 467