Page 454 of 565
Display messages
Possible causes/consequences and M
MSolutions
! Release parking brake *
The red! indicator lamp flashes.
The electric parking brake is applied while driving: R A condition for auto matic release of the electric parking brake is not fulfilled .
R You are per form ing emer gency braking using the electric parking brake . #
Check that the conditions for auto matic release of the electric parking brake are fulfilled. #
Release the electric parking brake manually. Display messages and
warning/indicator lamps 451 
     
        
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Display messages
Possible causes/consequences and M
MSolutions
! Parking brake See Owner's
Manual *
The yellow ! indicator lamp is lit. The elect ric pa rking brake is malfunctioning.
To appl y: #
Switch off the ignition and turn it back on. #
Apply the electric parking brake manually .
If it is not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. #
Where necessar y,also safeguard the par kedve hicle against rolling away.
The yellow ! indicator lamp and there d! indicator lamp are lit. The elect ric pa rking brake is malfunction‐
ing.
To release: #
Swit choff the ignition and turn it back on. #
Release the electric parking brake manually .
or #
Release the electric parking brake automatically .
If it is still not possible torelease the electric parking brake: #
Do not continue driving under any circums tances. Consult a qualified specialist workshop.
The yellow ! indicator lamp is lit and there d! indicator lamp is flashing. The electric parking brake is mal‐
functioning.
The electric parking brake could not be applied or released. 452
Display messages and warning/indicator lamps 
     
        
        Page 456 of 565
Display messages
Possible causes/consequences and M
MSolutions #
Switch off the ignition and turn it back on.
To appl y: #
Release and then apply the electric parking brake manually .
To release: #
Apply and then release the electric parking brake manuall y.
If it is not possible toapply the electric parking brake or there d! indicator lamp continues toflash: #
Do not continue driving under any circum stances. Consult a qualified specialist workshop. #
Where necessar y,also safeguard the par kedve hicle against rolling away.
The yellow ! indicator lamp is lit and there d! 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 is applied automaticall y. Displ
aymessa ges and warning/indicator lamps 453 
     
        
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Display messages
Possible causes/consequences and M
MSolutions
If yo u do not wish the electric parking brake tobe applied, lea vethe ignition switched on, e.g. when washing the
ve hicle in an automatic car wash or when having theve hicle towe daw ay. Do not do this when having theve hicle
to we d with there ar axle raised.
If th e electric parking brake is not applied automatically: #
Switch off the ignition and turn it back on. #
Release and then apply the electric parking brake manually .
If it is still not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. #
Where necessar y,also safeguard 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 .
If it is still not possible torelease the electric parking brake: #
Do not continue driving under any circums tances. Consult a qualified specialist workshop. 454
Display messages and warning/indicator lamps 
     
        
        Page 471 of 565

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 borders ha vebeen reached (→ page242). #
Drive on.
When the causes no longer appl y,the sy stem will be available again. #
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Consult a qualified specialist workshop.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assi stis malfunctioning. #
Consult a qualified specialist workshop.
Example:Parking Pilot Park-
ing cancelled *T
he parking assis tance sy stems of Parking Pilot wereinter rupte d.You ha veopened the driver's door or touched the
st eering wheel, forex ample. #
Steer and brake manuall y.
ë Off *T
he HOLD function is deactivated because theve hicle is skidding or a condition for activation is not met. #
Reactivate the HOLD function later or check the activation conditions forth e HOLD function .
Distance Pilot available
again *D
ista nce Pilot DISTRONIC is operational again and can be acti vated (→ page 205). 468
Display messages and warning/indicator lamps 
     
        
        Page 495 of 565

Display messages
Possible causes/consequences and M
MSolutions
Auxiliary battery malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, manually set the transmission toposition jbefore you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake.
Depress clutch fully to
start engine *Y
ou ha veattem ptedto start the engine without depressing the clutch pedal. #
Depress the clutch pedal and then start the engine.
The engine has stalled while pulling away, e.g. because the clutch pedal wasre leased tooqu ickl y. #
Dep ress the clutch pedal again.
The engine starts automaticall y. #
Slowly release the clutch pedal topull away.
Clutch overheated Avoid
pulling away for XX:XX mins *T
he clutch is under considerable load and is overheating.
Av oid frequent pulling away and driving at walking pace over longer dis tances. #
Stop theve hicle, paying attention toroad and traf fic conditions and le avethe engine running.
The clutch is cooled more quickly when the engine is running.
or #
If possible, continue driving at a steady speed and remo veyour foot from the clutch pedal. Do not ride the
clutch.
The clutch is cooled while driving.
When the clutch has cooled down, the display message disappears. 492
Display messages and warning/indicator lamps 
     
        
        Page 511 of 565
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Re d indicator lamp, elect ric
parking brake applied
!
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning The
red elect ric pa rking brake indicator lamp flashes or is lit. The yellow indicator lamp is also lit if the electric parking
brake malfunctions. #
Obser vethe messages in the multifunction displa y.508
Display messages and warning/indicator lamps 
     
        
        Page 530 of 565

ØCheck
AdBlue See Owne r’s
Manual .................................................4 78
J Check brake fluid le vel................ 455
4Check eng. oil le v.when next
re fuelling ............................................. 475
j Check trailer hit chlock .............. .489
hChe cktyre(s) ............................... 482
!Clean the fuel filter .................... .480
Clutch overheated Avoid pulling away
fo r XX:XX mins .................................... 492
ÉCompressor is cooling ................ 465
?Coolant Stop vehicle Switch
engine off ............................................ 473
Cruise cont rol and Limiter inope ra‐
tive ...................................................... 470
Cruise cont rol inope rative .................... 471
Cruise cont rol off ................................ 470
! currently una vailable See Own‐
er's Manual ........................................ .446 ÷cur
rently una vailable See Own‐
er's Manual ........................................ .448
Depress clutch ful lyto start engine .....4 92
Dis tance Pilot available again .............. 468
Dis tance Pilot cur rently una vailable
See Owner's Manual ...........................469
Dis tance Pilot inope rative .................... 469
È .................................................... 470
Ø Eng.start not possible in XXX
mi ........................................................ 479
Ø Eng.start not possible ................479
5 Engine oil le vel cannot be
measured ............................................ 478
4 Engine oil le velRe duce oil le vel...4 76
4 Engine oil le velSt op vehicle
Switch engine off ................................. 476
4 Engine oil pressure Stop Switch
off engine ............................................ 477
6 Example: Front left malfunction
Consult workshop .............................. 459 bExample: Left dipped beam
........ 499
6Example: Left windowbag mal‐
function Consult workshop ................. 459
Example: Parking Pilot Parking can‐
celled ................................................ .468
_Example: Rear left seat back‐
re st not lo cked ................................... 498
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 60
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 461
!inoperative See Owner's Man‐
ual .......................................................4 47
÷ inope rative See Owner's Man‐
ual ....................................................... 449
T inope rative See Owner's Man‐
ual ....................................................... 450
GInope rative ................................. .460
bIntelligent Light Sy stem inoper‐
ative ....................................................4 99 Index
527