MERCEDES-BENZ A-CLASS SALOON 2021 Owners Manual

Displa
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y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Check the conditions for automatic release of the electric parking brake. #
Release the electric parking brake manuall y.
!
Turn on the ignition to
release the parking brake *T
hered! indicator lamp is lit.
Yo u ha veattem pted torelease the electric parking brake with theve hicle switched o.. #
Switch on theve hicle.
Risk of vehicle rolling away
Parking brake not applied
See Owner's Manual *V
Vehicles wit ehicles wit h manual tr
h manual tr ansmission:
ansmission: the electric parking brake has not been applied and you open the driver's door. #
Apply the electric parking brake.
J
Brake immediately *V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: a malfunction has occur red while the HOLD function was activated.
A horn may also sound at regular inter vals. If you attem pttolock theve hicle, the horn will become louder.
Yo u cannot start theve hicle system. #
Immediately depress the brake pedal /rmly until the display message disappears.
Yo u cannot start theve hicle system again. 438
438
Displ
aymessages and warning/indicator lamps

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J
Check brake fluid level *T
here is insu1cient brake 0uid in the brake 0uid reser voir. &
W
WARNING
ARNING Risk of an accident due tolow brake 0uid le vel
If th e brake 0uid le vel is too lo w,the braking e.ect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and tra1c conditions. Do not continue driving. #
Consult a quali/ed specialist workshop. #
Do not top up the brake 0uid. Check brake pads See
Owner's Manual
*T
he brakepads ha vereached thewe ar limit. #
Consult a quali/ed specialist workshop. Dr Dr
iving syst
iving syst ems
ems Displa
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es Possible causes/conseq
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uences andM
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ë
Off *T
he HOLD function is deactivated because theve hicle is slipping or a condition for activation is not ful/lled. #
Reactivate the HOLD function later or check the activation conditions forth e HOLD function (/ page 219). Display messages and
warning/indicator lamps
439
439

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ossible causes/consequences and uences andM
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Solutions
é
ATTENTION ASSIST inoper-
ative *A
TTENTION ASSIST is malfunctioning. #
Consult a quali/ed speciali stwo rkshop.
é
ATTENTION ASSIST: Take a
break! *A
TTENTION ASSIST has de tected fatigue or an increasing lack of concentration on the part of the driver
(/ page 221). #
If necessar y,take a break.
h
- - -km/h *C
ruise control cannot be activated as not all activation conditions are ful/lled. #
Obser vethe activation conditions for cruise control (/ page 224).
Cruise control inoperative *Cruise control is malfunctioning. #
Consult a quali/ed specialist workshop.
Cruise control and Limiter
inoperative *C
ruise control and the limiter are malfunctioning. #
Consult a quali/ed specialist workshop. 440 440
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
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es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Cruise control off *Cruise control has been deactivated.
If th ere is an additional warning tone, cruise cont rol has been deactivated automatically (/ page 223).
È
- - -km/h *T
he limi ter can temp orarily not be engaged. Once the cause of the problem is no longer present, the system will be
av ailable again.
Limiter passive *Ifyo u depress the accelerator pedal be yond the pressure point (kickdown), the limiter is switched topassive mode
(/ page 224).
Limiter inoperative *The limi ter is malfunctioning. #
Consult a quali/ed specialist workshop.
ç
- - - km/h *A
ctive Dis tance Assist DISTRONIC cannot be activated as not all activation conditions are ful/lled. #
Comply with the activation conditions of Active Distance Assist DISTRONIC (/ page 228).
ç suspended *I
fyo u depress the accelerator pedal be yond the setting of Active Distance Assist DISTRONIC, the system will switch to
passive mode (/ page 226). Display messages and
warning/indicator lamps
441
441

Displa
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y messag
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es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ç
Off *A
ctive Dis tance Assist DISTRONIC was deacti vated. If a warning tone also sounds, Active Distance Assist DISTRONIC
has deactivated automatically (/ page 228).
Active Distance Assist cur-
rently unavailable See Own-
er's Manual *A
ctive Dis tance Assist DISTRONIC is temp orarily una vailable.
The ambient conditions are outside the system limits (/ page 226).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Active Distance Assist inop-
erative *A
ctive Dis tance Assist DISTRONIC is malfunctioning.
Other driving systems and driving sa fety systems may also be malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. 442 442
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
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es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Active Distance Assist
available again *A
ctive Dis tance Assist DISTRONIC is ope rational again. #
Switch on Active Distance Assist DISTRONIC (/ page 228).
Speed Limit Assist cur-
rently unavailable See Own-
er's Manual *S
peed Limit Assist is temp orarily una vailable. #
Drive on
Once the cause of the problem is no longer present, the system will be available again.
Speed Limit Assist inopera-
tive *S
peed Limit Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
ð Maximum speed exceeded *Y
ou ha veexceeded the maximum permissible speed (for cer tain countries only). #
Drive more slo wly.
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. Display message
s andwarning/indicator lamps
443
443

Displa
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y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
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Solutions
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 system limits (/ page 232).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on #
Check the tyre pressure if necessar y.
Active Steering Assist inop-
erative *A
ctive Steering Assist is malfunctioning. Active Distance Assist DISTRONIC remains available. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Active Steering Assist cur-
rently unavailable due to
multiple emergency stops *A
ctive Steering Assist is temp orarily una vailable due tomultiple emer gency stops. #
Take ove rth e steering and stop in accordance with the tra1c conditions. #
Switch theve hicle o. and switch it back on
Ac tive Steering Assist is available once more.
Beginning emergency stop *Your hands are not on the steering wheel. An emer gency stop is being initia ted (/ page 234). #
Put your hands back on the steering wheel.
Yo u can cancel the deceleration at any time byper form ing one of thefo llowing actions:
R Steering 444 444
Display messages and
warning/indicator lamps

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y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
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Solutions
R Braking or accelerating
R Deactivating Active Distance Assist DISTRONIC
Ø *A
ctive Steering Assist has reached the system limits (/ page 232).
Yo u ha venot steered independently for a considerable period of time. #
Take ove rth e steering and drive on in accordance with the tra1c conditions.
Traffic Sign Assist currently
unavailable See Owner's
Manual *
Tra1c Sign Assist is temp orarily una vailable.
Once the cause of the problem is no longer present, the system will be available again. #
Drive on
Traffic Sign Assist inopera-
tive *
Tra1c Sign Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Blind Spot Assist currently
unavailable See Owner's
Manual *B
lind Spot Assist is temp orarily una vailable.
The system limits ha vebeen reached (/ page 243).
Once the cause of the problem is no longer present, the system will be available again. #
Drive on
or Displ
aymessages and warning/indicator lamps
445 445

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you establish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assist is temp orarily una vailable.
The system limits ha vebeen reached (/ page 243).
Once the cause of the problem is no longer present, the system will be available again. #
Drive on
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assist is malfunctioning. 446 446
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you establish the electrical connection tothe trailer, Active Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge 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 system limits (/ page 246).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
447 447