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Display messages
Possible causes/consequences and 0050
0050Solutions #
Where necessar y,also secure the par kedve hicle against rolling away.
* The yellow 0024 indicator lamp and there d0024 indicator lamp are lit. The elect ric pa rking brake is malfunction‐
ing.
To release: #
Swit chthe ignition off and switch it back on. #
Release the electric parking brake manually (/ page210).
or #
Release the electric parking brake automatically (/ page 209).
If it is still not possible torelease the electric parking brake: #
Do not continue driving. Consult a qualified specialist workshop.
* The yellow 0024 indicator lamp is lit and there d0024 indicator lamp is flashing. The electric parking brake is mal‐
functioning.
The electric parking brake could not be applied or released. #
Swit chthe ignition off and switch it back on.
To appl y: #
Release and then apply the electric parking brake manually (/ page210).
To release: #
Apply and then release the electric parking brake manuall y.654
Display messages and warning/indicator lamps
Page 658 of 757

Display messages
Possible causes/consequences and 0050
0050Solutions
If it is not possible toapply the electric parking brake or there d0024 indicator lamp continues toflash: #
Do not continue driving. Consult a qualified specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
* The yellow 0024 indicator lamp is lit and there d0024 indicator lamp flashes for appro ximately ten seconds af ter
th e electric parking brake has been applied or released. It then remains lit or goes out. The electric parking brake is
malfunctioning.
If th e bat tery charge leve l is too lo w: #
Char gethe batter y.
To appl y: #
Switch the ignition off.
The electric parking brake will be applied automaticall y.
If th e electric parking brake is not tobe applied, e.g. at an automatic car wash or when theve hicle is being towe d,
lea vethe ignition switched on. This does not include having theve hicle towe d with there ar axle raised.
If th e electric parking brake is not applied automatically: #
Switch the ignition off and switch it back on. #
Release and then apply the electric parking brake manually (/ page210).
If it is still not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 655
Page 659 of 757

Display messages
Possible causes/consequences and 0050
0050Solutions #
Where necessar y,also secure the par kedve hicle against rolling away.
To release: #
Ifth e conditions for auto matic release are fulfilled and the electric parking brake is not released automaticall y,
re lease the electric parking brake manually (/ page210).
If it is still not possible torelease the electric parking brake: #
Do not continue driving. Consult a qualified specialist workshop.
0024 Release parking brake *
The red0024 indicator lamp is flashing.
The electric parking brake is applied while you are driving:
R A condition for auto matic release of the electric parking brake has not been fulfilled (/ page 209).
R You are per form ing emer gency braking using the electric parking brake (/ page210). #
Che ckthe conditions for auto matic release of the electric parking brake. #
Release the electric parking brake manually.
0024
Turn on the ignition to
release the parking brake *
The red0024 indicator lamp is lit.
Yo u ha veattem ptedto release the electric parking brake with the ignition switched off. #
Switch on the ignition. 656
Display messages and warning/indicator lamps
Page 660 of 757

Display messages
Possible causes/consequences and 0050
0050Solutions
004D Check brake fluid level *T
here is insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. #
Consult a qualified specialist workshop. #
Do not top up the brake fluid. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Do not top up the brake fluid. #
Consult a qualified specialist workshop.
0026 Check brake pads See
Owner's Manual *T
he brakepads ha vereached thewe ar limit. &
WARNING Risk of accident due torestricted braking po wer
When the brake pads ha vereached their wear limit, the braking po wer may be restricted. #
Drive on carefully. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 657
Page 661 of 757
Driving sy
stems Display messages
Possible causes/consequences and 0050
0050Solutions
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 280). #
If necessar y,take a break.
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. #
Drive in a manner appropria teforth e cur rent le vel, but do not exceed 80 km/h. #
Consult a qualified specialist workshop. 658
Display messages and warning/indicator lamps
Page 662 of 757

Display messages
Possible causes/consequences and 0050
0050Solutions
ACTIVE BODY CONTROL
Function limited See Own-
er's Manual *A
t least one main function of the E- ACTIVE BODY CONTROL sy stem is malfunctioning.
The sy stem is outside the operating temp erature range or the on-board electrical sy stem voltage is too lo w.
* NO
TEThe vehicle's suspension and damping behaviour is restricted. The vehicle body may tilt heavily to
th e side during cornering. #
Drive on carefull y. #
Reduce speed considerably before taking a bend. #
Avoid sudden steering mo vements. #
Drive on careful ly. #
Reduce speed considerably before taking a bend. #
Avoid sudden steering mo vements.
Once the cause of the problem is no longer present, the sy stem will be available again.
00C5
Lowering *T
hevehicle le vel may be lo weredfo rth efo llowing reasons:
R You ha veselected a dif fere nt drive program.
R You ha veexceeded the speed limit.
R You ha vechanged theve hicle le velby pressing the button.
R Operation with a trailer or bicycle rack:if an elect rical connection has been cor rectly made, you ha veexcee‐
ded the speed limit. Display messages and
warning/indicator lamps 659
Page 663 of 757
Display messages
Possible causes/consequences and 0050
0050Solutions
00C4 Vehicle rising *Y
our vehicle is adjusting tothe le velyo u ha veselected.
ä Fault Drive at max. 80
km/h *A
t least one main function of the E- ACTIVE BODY CONTROL sy stem is malfunctioning.
The sy stem is deactivated.
* NO
TEThe vehicle's suspension and damping behaviour has changed significantl y,theve hicle body may tilt
heavily tothe side during cornering. #
Reduce vehicle speed. Drive on carefull y. #
Reduce theve hicle speed considerably before taking a cur ve. #
Avoid sudden steering mo vements. #
Continue driving careful lyand do not exceed 80 km/h. #
If possible, stop theve hicle in accordance with the traf fic conditions and switch the ignition off and on again. #
Ifth e display message still appears, consult a qualified specialist workshop. 660
Display messages and warning/indicator lamps
Page 664 of 757

Display messages
Possible causes/consequences and 0050
0050Solutions
ä Fault Stop *T
here is a serious malfunction af fecting thehy draulics of the E- ACTIVE BODY CONT ROL sy stem.
The sy stem is deactivated.
* NO
TEThe vehicle's driving characteristics ha vechanged significantl y. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
00C4 Please reduce speed *Y
ou are driving toofast forth e selected vehicle le vel. #
Drive more slowly and then select the desired vehicle le vel again.
Yo u are driving tooqu ickly with a trailer or the trailer hitch soc ket is being used, e.g. for a rear cycle rack. #
Read the information on trailer operation.
00C4 Vehicle rising Please wait *T
hevehicle le vel is too lo w.The vehicle will be raised tothe selected vehicle le vel. #
Wait until the display message disappears before pulling away. Displ
aymessa ges and warning/indicator lamps 661