MERCEDES-BENZ CLA COUPE 2022 Owners Manual

Page 441 of 529

Display messages
Possible causes/consequences and P Solutions 
Select transmission position k.
Risk of vehicle rolling
Driver door open and trans-
mission not in P * The driver's door is not fully closed and transmission position
h, k or neutr al i is selected.
The vehicle may roll away. 
Select park position j when switc
hing oM the vehicle.
N permanently active Risk
of vehicle rolling * While the vehicle is rolling or while you are driving, neutral
i has been eng
aged.
Depress the brake pedal to stop. 
Shis t
he transmission to park position j when the vehicle is stationary. 
To continue driving, select transmission position h or k.
Without changing gear,
consult workshop * The transmission is malfunctioning. It is no longer possible to change the transmission position. 
If transmission position h is select
ed, consult a qualiNed specialist workshop and do not change the transmission
position. 
For all other transmission positions, park the vehicle safely. 
Consult a q
ualiNed specialist workshop.
Reversing not poss. Con-
sult workshop * The transmission is malfunctioning. It is not possible to select transmission position
k.
Consult a q
ualiNed specialist workshop.
Transmission Malfunction
Stop * The transmission is malfunctioning. The transmission
shiss t
o neutral i automatically.
Stop the vehicle immediately in accordance with the tr
aPc conditions. 438
Display messages and warning/indicator lamps

Page 442 of 529

Display messages
Possible causes/consequences and P Solutions 
Depress the brake pedal. 
Engage park position j. 
Consult a qualiNed specialist workshop.
Transmission Malfunction * The transmission is malfunctioning. The cause could be an overheated clutch or blocked gears. 
Let the transmission cool down. 
If the display message still appears following a restart, consult a q
ualiNed specialist workshop.

Page 443 of 529

Display messages
Possible causes/consequences and P Solutions 
Select park position j, tr ansmission position k or neutral i.
Risk of vehicle rolling away
Apply parking brake See
Owner's Manual * The transmission position cannot be reliably
identiNed. 
Use the electric parking brake to secure the vehicle against rolling away.
Teaching in transmission
complete * The transmission's teach-in process is complete. All transmission positions can be selected again.
Transmission Malfunction
Visit workshop * The transmission is malfunctioning.
Consult a q

ualiNed specialist workshop.
Depress clutch fully to
start engine * You have attempted to start the vehicle without depressing the clutch pedal. 
Depress the clutch pedal and then start the vehicle.
* The vehicle has stalled while the vehicle was pulling away, e.g. because the clutch pedal was released too quickly. 
Depress the clutch pedal again.
The v

ehicle will start automatically. 
Slowly release the clutch pedal to pull away.
Clutch overheated Avoid
pulling away until the warn-
ing goes out * The clutch is under considerable load and is overheating.
A
void frequent pulling away and driving at walking pace over longer distances. 
Stop the vehicle, paying attention to road and tr
aPc conditions and leave the vehicle running.
The clutch will cool more quickly when the vehicle is running. 440
Display messages and warning/indicator lamps

Page 444 of 529

Display messages
Possible causes/consequences and P Solutions
or 
If possible, continue driving at a steady speed and remove your foot from the clutch pedal. Do not let the clutch
dr ag.
The clutch will cool while the vehicle is in motion.
When the clutch has cooled down, the display message will disappear.
Auxiliary battery malfunc-
tion (whit

e display message) * The auxiliary battery for the automatic transmission is no longer being charged. 
Consult a q
ualiNed specialist workshop. 
Until then, always select park position j manuall
y before you switch oM the vehicle. 
Before leaving the vehicle, apply the electric parking brake.
Auxiliary battery malfunc-
tion (r

ed display message) *
Vehicles with manual transmission: Ther e is a fault with the auxiliary battery.
Vehicles with automatic transmission: The auxiliary battery for the transmission is no longer being charged. 
Consult a q
ualiNed specialist workshop. 
Vehicles with automatic transmission: until t
hen, always select park position j before you switch oM the vehicle. 
Before leaving the vehicle, apply the electric parking brake. Display messages and warning/indicator lamps
441

Page 445 of 529

Brakes
Display messages
Possible causes/consequences and P Solutions
$
Parking brake See Owner's
Manual * The yellow
$ indicat or lamp is lit. The electric parking brake is malfunctioning.
To apply: 
Switch the vehicle oM and switc
h it back on 
Apply the electric parking brake manually (  pag
e 214).
If it is not possible to apply the electric parking brake: 
Consult a q
ualiNed specialist workshop. 
Where necessary, also secure the parked vehicle against rolling away.
* The yellow $ indicat
or lamp and the red $ indicator lamp are lit. The electric parking brake is malfunctioning.
To release: 
Switch the vehicle oM and switc
h it back on 
Release the electric parking brake manually ( pag
e 214).
or 
Release the electric parking brake automatically (  pag
e 213).
If it is still not possible to release the electric parking brake: 
Do not continue driving. Consult a q
ualiNed specialist workshop.
* The yellow $ indicat
or lamp is lit and the red $ indicator lamp is Oashing. The electric parking brake is malfunc-
tioning. 442
Display messages and warning/indicator lamps

Page 446 of 529

Display messages
Possible causes/consequences and P Solutions
The electric parking brake could not be applied or released. 
Switch the vehicle oM and switc h it back on
To apply: 
Release and then apply the electric parking brake manually (  pag
e 214).
To release: 
Apply and then release the electric parking brake manually.
If it is not possible to apply the electric parking brake or the red $ indicat
or lamp continues to Oash: 
Do not continue driving. Consult a q
ualiNed specialist workshop. 
Where necessary, also secure the parked vehicle against rolling away.
* The yellow $ indicat
or lamp is lit and the red $ indicator lamp Oashes for approximately ten seconds aser the
electric parking brake has been applied or released. It then remains lit or goes out. The electric parking brake is mal-
functioning.
If the state of charge is too low: 
Charge the 12 V battery.
To apply: 
Switch oM t
he vehicle.
The electric parking brake will be applied automatically. Display messages and warning/indicator lamps
443

Page 447 of 529

Display messages
Possible causes/consequences and P Solutions
If you do not want the electric parking brake to be applied, e.g. at an automatic car wash or when the vehicle is being
t owed, leave the vehicle switched on. This does not include having the vehicle towed with the rear axle raised.
If the electric parking brake is not applied automatically: 
Switch the vehicle oM and switc
h it back on 
Release and then apply the electric parking brake manually (  pag
e 214).
If it is still not possible to apply the electric parking brake: 
Consult a q
ualiNed specialist workshop. 
Where necessary, also secure the parked vehicle against rolling away.
To release: 
If the conditions for automatic release are fulNlled and t
he electric parking brake is not released automatically,
release the electric parking brake manually (  page 214).
If it is still not possible to release the electric parking brake: 
Do not continue driving. Consult a q
ualiNed specialist workshop.
$
Release parking brake * The red $ indicat

or lamp is Oashing.
The electric parking brake is applied while you are driving:
= A condition for automatic release of the electric parking brake has not been fulNlled ( page 213).
= You are performing emergency braking using the electric parking brake (  page 214).444
Display messages and warning/indicator lamps

Page 448 of 529

Display messages
Possible causes/consequences and P Solutions 
Check the conditions for automatic release of the electric parking brake. 
Release the electric parking brake manually.
$
Turn on the ignition to
release the parking brake * The red $ indicat
or lamp is lit.
You have attempted to release the electric parking brake with the vehicle switched oM.
Switch on the vehicle.
Risk of vehicle rolling away
Parking brake not applied
See Owner's Manual *
Vehicles with manual transmission: t
he electric parking brake has not been applied and you open the driver's door. 
Apply the electric parking brake.
M
Brake immediately *
Vehicles with manual transmission: a malfunction has occur
red while the HOLD function was activated.
A horn may also sound at regular intervals. If you attempt to lock the vehicle, the horn will become louder.
You cannot start the vehicle system. 
Immediately depress the brake pedal Nr
mly until the display message disappears.
You cannot start the vehicle system again. Display messages and warning/indicator lamps
445

Page 449 of 529

Display messages
Possible causes/consequences and P Solutions
M
Check brake fluid level * There is
insuPcient br ake Ouid in the brake Ouid reservoir. &
WARNING Risk of an accident due t
o low brake Ouid level
If the brake Ouid le
vel is too low, the braking eMect and the braking characteristics may be impaired. 
Stop the vehicle as soon as possible, paying attention to road and tr
aPc conditions. Do not continue driving. 
Consult a q
ualiNed specialist workshop. 
Do not top up the brake Ouid.Check brake pads See
Owner's Manual
* The brakepads have reached the wear limit. 
Consult a q
ualiNed specialist workshop.Driving systems
Display messages
Possible causes/consequences and P Solutions

Page 450 of 529

Display messages
Possible causes/consequences and P Solutions
é
ATTENTION ASSIST inoper-
ative * ATTENTION ASSIST is malfunctioning. 
Consult a qualiNed specialist workshop.
é
ATTENTION ASSIST Take a
break! * ATTENTION ASSIST has detected fatigue or an increasing lack of concentration on the part of the driver
( pag
e 223). 
If necessary, take a break.
J
- - -
km/h * Cruise control cannot be activated as not all activation conditions are
fulNlled.
Observe the activation conditions for cruise control (  pag e 226).
Cruise control inoperative * Cruise control is malfunctioning. 
Consult a q
ualiNed specialist workshop.
Cruise control and Limiter
inoperative * Cruise control and the limiter are malfunctioning. 
Consult a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
447

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