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Displaymessages
Possible causes/consequences and MSolutions
Radar Sensors Dirt ySee
Operator' sManual *T
heradar sensor sy stem is malfunctioning. Possible causes are:
Rsoiling of thes ensors
Rheavy rain
Rex tende ddriving on inter-urba nroads without moving traf fic, e.g. in thed esert
Driving sy stems and driving saf etys ystems ma ybem alfunctioning or temp oraril yunavailable.
When thec auses no longer appl y,driving sy stems and driving saf etys ystems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear:
#Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions.
#Cleana llsensors .
#Restar tt he engine.
Active Brake Assist Func-
tions Currently Limited See
Operator's Manual *
Ac tiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering Assis torPRE‑SAFE
®PLUS is temp oraril yunavaila‐
ble or onl ypartiall yavailable.
The ambient conditionsa reoutside thes ysteml imits (
→pag e152).
#Driv eon.
As soo nasthe ambient conditions ar ewithin thes ystem limits, thes ystems will be available again.
#Ifth ed ispla ymessag edoes no tdisappear ,stopt he vehicle while paying attention toroad and traf ficc onditions
and restar tt he engine.
Displa ymessages and warning/indicator lamps 359
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Displaymessages
Possible causes/consequences and MSolutions
Active Brake Assist Func-
tions Limited See Opera-
tor's Manual *
Ac tiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering Assis torPRE‑SAFE
®PLUS is malfunctioning.
#Visit aq ualified specialis tworks hop.
Active Brake Assist Func-
tions Currently Limited See
Operator's Manual *A
ctiv eBrake Assist istemp oraril yunavailable.
The ambientc onditionsareoutside thes ysteml imits .
#Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem limits, thes ystemw ill become available again.
#Ifth ed ispla ymessag edoes no tdisappear ,pull ove rand stop thev ehicle safel y,paying attention toroad and
traf ficc onditions and restar tt he engine.
Active Brake Assist Func-
tions Limited See Opera-
tor's Manual *A
ctiveBrake Assist is malfunctioning.
#Visit aq ualified specialis tworks hop.
PRE-SAFE Impulse Side
Inoperative See Operator's
Manual *
PRE-SAFE
®Impulse Side is malfunctioning or inoperativ eafter having already been triggered.
#Vi sit aq ualified specialis tworks hop.
PRE-SAFE Inoperative See
Operator's Manual *
PRE‑SAFE
®functions ar emalfunctioning.
#Consult aqualified specialis tworks hop.
360
Displa ymessages and warning/indicator lamps
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Displaymessages
Possible causes/consequences and MSolutions
É
Malfunction See Opera-
tor's Manual*A
IRBO DY CONTROL function is restricted. The vehicle's handling characteristic smaybe af fected.
#Driv einam annerappropria tefort he cur rent le vel, but do no texceed 50 mph(80 km/h).
#Visit aq ualified specialis tworks hop.
É
Stop Vehicle Vehicle Too
Low *Y
ou ha vepulled away although thev ehicle le velw as tool ow .
#Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions.
The vehicle rises tothes elected vehicle le vel.
#Wa it until thed ispla ymessag edisappear sbefor epulling away.
If th ed ispla ymessag edoes no tdisappear and awarning tone also sounds, AIR BOD YCONTROL is malfunctioning:
#Do no tdrive fast erthan 50 mph(80 km/h) and consult aqualified specialis tworks hop immediatel y.
* NO
TEThe tires of thef ront axle or thef ront fende rscould be damaged bylarge steering mo vements
#Av oid larg esteering mo vements whil edriving and lis tenf or scraping sounds.
#Ifyo uh ear scra ping sounds, pull overand stop thev ehicle safely ,paying attention toroad and traf ficc on‐
ditions ,and se tahigher vehicle le velifp ossible.
#Setah igher vehicle le vel.
Dependin gonthe malfunction, thev ehicle is raised.
37 0
Displ aymessage sand warning/indicator lamps
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Displaymessages
Possible causes/consequences and MSolutions
Active Lane Keeping Assist
Currently Unavailable See
Operator' sManual *A
ctiv eLane keeping Assis tistemporarily una vailable.
The ambientc onditionsareoutside thes ysteml imits (
→pag e190).
Ve hicles with Steering Pilo t:The camer aviewm aybe restricted bythew indshield.
#Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem limits, thes ystemw ill become available again.
If th ed ispla ymessag edoes no tdisappear on vehicles wit hSteering Pilo t:
#Pulloverand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions.
#Cleant he windshield.
Active Lane Keeping Assist
Inoperative *A
ctiveLane Keeping Assis tismalfunctioning.
#Visit aq ualified specialis tworks hop.
Displa ymessages and warning/indicator lamps 37
3
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Displaymessages
Possible causes/consequences and MSolutions
Steering Pilot Currently
Unavailable See Operator's
Manual *S
teering Pilo tistemporarily una vailable.
The ambientc onditionsareoutside thes ysteml imits (
→pag e165).
#Driv eon.
As soo nasthe ambient conditions ar ewithin thes ystem limits, thes ystemw ill become available again.
#If necessar y,clean thew indshield in thec amera's field of vision.
Steering Pilot Inoperative *S
teering Pilo tismalfunctioning. Dis tance Pilo tDISTRONIC remains available.
#Visit aq ualified specialis tworks hop.
Distance Pilot Inoperative *D
ista nce Pilo tDISTRONIC is malfunctioning.
Other driving sy stems and driving saf etys ystems ma yalso malfunction.
#Visit aq ualified specialis tworks hop.
Distance Pilot Now Availa-
ble *D
ista nce Pilo tDISTRONIC is operationala gain and can be acti vated(
→pag e162).
Distance Pilo tCurrently
Unavailable See Operator's
Manual *D
ista nce Pilo tDISTRONIC is temp oraril yunavailable.
The ambientc onditionsareoutside thes ysteml imits (
→pag e159).
#Driv eon.
As soo nasthe ambient conditions ar ewithin thes ystem limits, thes ystemw ill become available again.
¯--- mph *C
ruise control canno tbeactivated as no tall activation condition sarefulfilled.#Obser vethea ctivation conditions forc ruisec ontrol .
376
Displ aymessage sand warning/indicator lamps
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Displaymessages
Possible causes/consequences and MSolutions
h
Please Correct Tire Pres-
sure*T
he tir epressur eist oo lo winatl eastone of thet ires, or thet irep ressur ediffe re nce betwee nthe wheels is too
great.
#Chec kthe tir epressur eand add air ,ifnecessar y.
#Whenthet irep ressur eisc orrect, restar tt he tir epressur emonitoring sy stem .
h
Warning Tire Malfunction *T
he tir epressur eino ne or mor etires has dropped suddenly .The wheel position is displa yed.
&
WARNING Risk of an accident from driving wi thaflat tire
Flat tires ar edangerous in thef ollowing ways:
RThe tires can overheat and cause afire.
RThe driving characteristics, as well as steering and braking, ma ybegreatl yimp aired.
Yo uc ouldthen lose control of thev ehicle.
#Do no tdrive wit haf lat tire.
#Obser vethen otes on flat tires.
No tesf or aflat tir e(→page294).
#Stop thev ehicle, paying attention toroad and traf ficc onditions.
#Chec kthe tires.
Displa ymessages and warning/indicator lamps 383
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Displaymessages
Possible causes/consequences and MSolutions
Tires Overheated Decrease
Speed *A
tlea st one tire is overheated.
&
WARNING Risk of an accident from driving wi thove rheated tires
Overheated tires ma yburst,p articularly at high speeds.
#Re duce speed so that thet ires cool down.
#Reduce speed so that thet ires cool down.
Tires Overheated *A
tlea st one tire is overheated. The af fected tires ar edispl aye dinr ed.Attemp eratures close tothel imit value, the
tires ar edispl ayed in yello w.
#Driv emores lowl y.
Tire Press. Monitor Inopera-
tive *T
he tir epressur emonitoring sy stem is faulty.
&
WARNING Thereisar isk of an accident if thet irep ressur emonitoring sy stem is malfunctioning
If th et irep ressur emonitoring sy stem is malfunctioning, it is no table toissue awarning if ther eisp ressur eloss
in one or mor eofthe tires.
Underinflated tires ma y,fore xamp le, impair thed riving, steering and braking characteristics.
#Ha ve thet irep ressur emonitoring sy stem checkedataq ualified specialis tworks hop.
#Consult aqualified specialis tworks hop.
384
Displa ymessages and warning/indicator lamps
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Displaymessages
Possible causes/consequences and MSolutions
Stop Vehicle Leave Engine
Running Wait Transmission
Cooling *T
he transmission has overheated. Pulling away can be temp orarily impaired or no tpossible.
#Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions .Donot
continu edriving under an ycircums tances.
#St artt he engine.
#Wa it until thed ispla ymessag edisappear sbefor epulling away.
Auxiliar yBattery Malfunc-
tion *T
he auxiliary batteryfor thet ransmission is no longer being charge d.
#Consult aqualified specialis tworks hop.
#Un tilthen, manuall ysetthet ransmission toposition jbefor eyou switc hoffthee ngine.
#Befor eleaving thev ehicle, apply thee lectric parking brake.
Ð
Steering Malfunction Drive
Carefully Service Required *T
he po werassi stanc eoft hesteering is malfunctioning. Youm ayneed touse mor eforce tosteer.
#Driv eonc arefull y.
#Consult aqualified specialis tworks hop.
Displa ymessages and warning/indicator lamps 389