steering MERCEDES-BENZ S-CLASS CABRIOLET 2017 Workshop Manual

Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with theD riving Assistance Package: ActiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering
Assis torP RE‑SAFE ®
PLUS ar etemporarily una vailable or onl ypartiall yavailable.
Ve hicles without theD riving Assistance pa ckage: ActiveB rake Assi stistemp orarily una vailable.
The ambien tcondition sareoutside thes ystem border s. #
Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem borders, thes ystemw ill become 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.
Active Brake Assist Func-
tions limited See Owner's
Manual *
Ve hicles with Drivin gAssistanc ePacka ge: ActiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering
Assis torP RE‑SAFE ®
PLUS is malfunctioning.
Ve hicles without theD riving Assistance Package: ActiveB rake Assi stis malfunctioning. #
Consult aqualified specialis tworks hop.
PRE-SAFE inoperative See
Owner's Manual *
PRE‑SAFE ®
functions ar emalfunctioning. #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 427

Displa
ymessages
Possible causes/consequences and M
MSolutions
É Stop vehicle Vehicle too
low *Y
ou ha vepulled away despit ethe vehicle le velb eing 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. #
Wait 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 80 km/h and consult aqualified specialis tworks hop immediatel y.
* NO
TEThe tyres of thef ront axle or thef ront wings could be damaged bylarge steering mo vements #
Avoid larg esteering mo vements whil edriving and lis tenf or scraping sounds. #
Ifyo uh ear sc raping 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. 434
Displa ymessages and warning/indicator lamps

Displa
ymessages
Possible causes/consequences and M
MSolutions Fault Drive at max. 80
km/h
*T
he AIR BODY CONTROL function is restricted. The vehicle's handling characteristic smaybe af fected.
* NO
TEThe tyres of thef ront axle or thef ront wings could be damaged bylarge steering mo vements #
Avoid larg esteering mo vements whil edriving and lis tenf or scraping sounds. #
Ifyo uh ear sc raping sounds, pull overand stop thev ehicle safely ,paying attention toroad and traf ficc on‐
ditions ,and se tahigher vehicle le velifp ossible. #
Do no tdrive fast erthan 80 km/h. #
Consult aqualified specialis tworks hop.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctiv eLane Keeping Assis tistemporaril yunavailable.
The ambien tcondition sareoutside thes ystemb order s(→pag e215).
Ve hicles with Activ eS teering Assis t:thec amer aviewm aybe restricted bythew indscreen. #
Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem borders, thes ystemw ill become available again.
If th ed ispla ymessag edoes no tdisappear on vehicles wit hActiv eSteering Assis t: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nthe windscreen.
Active Lane Keeping Assist
inoperative *A
ctiveLane Keeping Assis tismalfunctioning. #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 435

Displa
ymessages
Possible causes/consequences and M
MSolutions
ë Off *T
he HOLD function is deactivated because thev ehicle is skidding or acondition fora ctivation is no tmet. #
Reactivat ethe HOLD function later or checkt he activation conditions fort he HOLD function .
Active Distance Assist
available again *A
ctiveDistan ce Assi stDISTRONI Cisoperationa laga in and can be acti vated( →pag e178).
Active Distance Assist cur-
rently unavailable See Own-
er's Manual *A
ctiv eDistan ce Assi stistemp orarily una vailable.
The ambien tcondition sareoutside thes ystemb order s(→pag e176). #
Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem borders, thes ystemw ill become available again.
Activ eDistance Assist inop-
erative *A
ctiveDistan ce Assi stis malfunctioning.
Other drivin gand drivin gsafet ys ystems ma yalso be malfunctioning. #
Consult aqualified specialis tworks hop.
Active Steering Assist cur-
rently unavailable See Own-
er's Manual *A
ctiv eSteering Assis tistemporaril yunavailable.
The ambien tcondition sareoutside thes ystemb order s(→pag e182). #
Driv eon.
As soo nasthe ambient conditions ar ewithin thes ystem borders, thes ystemw ill become available again. #
If necessar y,clean thew indscreen in thec amera's field of vision. 438
Displa ymessages and warning/indicator lamps

Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Steering Assist inop-
erative *A
ctiveSteering Assis tismalfunctioning. ActiveD ista nce Assi stremains available. #
Consult aqualified specialis tworks hop.
Limiter passive *I
fyou depress thea ccelera torp eda lbeyo ndthep ressur epoint (kickdown), thel imiter is switched topassiv emode
(→ pag e174).
È ---km/h *T
he limiter canno tbeactivated as no tall activation conditions ha vebeen fulfilled. #
Obser vethea ctivation conditions of thel imiter .
Limiter inoperative *T
he limiter is malfunctioning. #
Consult aqualified specialis tworks hop.
¯ ---km/h *C
ruise control canno tbeactivated as no tall activation condition sarefulfilled. #
Obser vethea ctivation conditions forc ruisec ontrol .
Cruise control off *C
ruise control has been deactivated.
If th er eisana dditional warning tone, cruise control ha sbeens witched of fautomatically ( →pag e172).
Cruise control inoperative *C
ruise control is malfunctioning. #
Consult aqualified specialis tworks hop.
Cruise control and Limiter
inoperative *C
ruise control and thel imiter ar emalfunctioning. #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 439

Ty
res Displa
ymessages
Possible causes/consequences and M
MSolutions
Tyre pressure Check tyres *T
he tyr epressur eloss warning sy stem has de tected asignificant los sinpressure. &
WARNING Risk of an accident du etoinsufficient tyr epressure
Ty resw ithi nsuf ficient tyr epressur eposet he following risks:
R The tyres ma yburst,e speciall yasthe load and vehicle speed increase.
R The tyres ma ywear excessively and/or une venly, whic hmaygreatl yimp air tyr etraction.
R ‑The drivin gcharacteristics, steering and braking ma ybegreatl yimp aired.
Yo uc ouldthen lose control of thev ehicle. #
Obser vether ecommende dtyrep ressures. #
Adjus tthe tyr epressur eifn ecessar y. #
Stop thev ehicle, paying attention toroad and traf ficc onditions. #
Chec kthe tyr epressur eand thet yres. #
When thet yrep ressur eisc orrect, restar tt he tyr epressur eloss warning sy stem .
Check tyre pressures then
restar tRun Flat Indicator *T
he tyr epressur eloss warning sy stem generated adispl ay messa geand has no tbeen restar teds ince. #
When thet yrep ressur eisc orrect, restar tt he tyr epressur eloss warning sy stem .
Run Flat Indicator inopera-
tive *T
he tyr epressur eloss warning sy stem is malfunctioning. #
Consult aqualified specialis tworks hop. 444
Displaymessa gesa nd warning/indicator lamps

Displa
ymessages
Possible causes/consequences and M
MSolutions
h Rectify tyre pressure *T
he tyr epressur eist oo lo winatl eastone of thet yres, or thet yrep ressur ediffe re nce betwee nthe wheels is too
great. #
Chec kthe tyr epressur eand add air ,ifnecessar y. #
When thet yrep ressur eisc orrect, restar tt he tyr epressur emonitoring sy stem .
h
Check tyre(s) *T
he tyr epressur eino ne or mor etyres has dropped significantl y.The wheel position is displa yed. &
WARNING Risk of an accident du etoinsufficient tyr epressure
Ty resw ithi nsuf ficient tyr epressur eposet he following risks:
R The tyres ma yburst,e speciall yasthe load and vehicle speed increase.
R The tyres ma ywear excessively and/or une venly, whic hmaygreatl yimp air tyr etraction.
R ‑The drivin gcharacteristics, steering and braking ma ybegreatl yimp aired.
Yo uc ouldthen lose control of thev ehicle. #
Obser vether ecommende dtyrep ressures. #
Adjus tthe tyr epressur eifn ecessar y. #
Stop thev ehicle, paying attention toroad and traf ficc onditions. #
Chec kthe tyr epressur eand thet yres. Displa
ymessages and warning/indicator lamps 445

Displa
ymessages
Possible causes/consequences and M
MSolutions
h Warning tyre defect *T
he tyr epressur eino ne or mor etyres has dropped suddenly .The wheel position is displa yed. &
WARNING Risk of an accident from driving wi thaflat tyre
Flat tyres ar edangerous in thef ollowing ways:
R The tyres can overheat and cause afire.
R ‑The driving characteristics, steering and braking ma ybegreatl yimp aired.
Yo uc ouldthen lose control of thev ehicle. #
Do no tdrive wit haf lat tyre. #
Obser vethen otes on flat tyres. No
tesonf lat tyres (→ page365). #
Stop thev ehicle, paying attention toroad and traf ficc onditions. #
Chec kthe tyres.
Tyre press. monitor cur-
rently unavailable *N
osignals can be recei vedf romt he tyr epressur esensor sdue tostro ngradio signal source inter fere nce. The tyre
pressur emonitoring sy stem is temp oraril yunavailable. #
Driv eon.
The tyr epressur emonitoring sy stem restarts automaticall yassoon as thec ause has been rectified. 446
Displaymessa gesa nd warning/indicator lamps

Displa
ymessages
Possible causes/consequences and M
MSolutions
h Wheel sensor(s )missing *T
her eisnos ignal from thet yrep ressur esensor of one or mor ewheels. The pressur eofthe affected tyr eisnot
displ ayed. #
Have thef aulty tyr epressur esensor replaced at aqualified specialis tworks hop.
Tyre press. monitor inoper-
ative No wheel sensors *T
he wheels fitted do no thave suitable tyr epressur esensors. The tyr epressur emonitoring sy stem is deactivated. #
Fit wheels wit hsuitable tyr epressur esensors.
Tyre press. monitor inoper-
ative *T
he tyr epressur emonitoring sy stem is faulty. &
WARNING Thereisar isk of an accident if thet yrep ressur emonitoring sy stem is malfunctioning
If th et yrep ressur emonitoring sy stem is malfunctioning, it is no table toissue awarning if ther eisp ressure
loss in one or mor eofthe tyres.
Ty resw ithi nsuf ficient tyr epressur emay,for example, af fect thev ehicle's handling characteristics, steering and
braking. ‑ #
Have thet yrep ressur emonitoring sy stem checkedataq ualified specialis tworks hop. #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 447

Displa
ymessages
Possible causes/consequences and M
MSolutions
Let fresh air into the vehi-
cle interior! Air condition-
ing malf. Visit workshop *T
he climat econt rols ystemism alfunctioning. &
WARNING Risk of inju ryand acciden tdue toan insuf ficient supply of fresh air
If th ec limat econtrol sy stem is malfunctioning, carbon dioxide le vels ma yinc rease in thep assenger compart‐
ment .Breathing in carbon dioxide ma ycause dizziness. #
Open thew indo wtoe nsurethat ther eisas ufficient supply of fresh ai r. #
Open thew indo wtoe nsurethat ther eisas ufficient supply of fresh ai r. #
Consult aqualified specialis tworks hop immediatel y.
Ð
Steering malfunction Drive
carefully Visit workshop *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 453