2018 MERCEDES-BENZ S-CLASS CABRIOLET display

Displaymessages
Possible causes/consequences and MSolutions
ë
Off*T
he HOLD function is deactivated because theve hicle is skidding or a condition for activation is not met.
#Re activate the HOLD function later or check the activation conditions forth e HOLD function .
Active Distance Assist Now
Available *A
ctive Dis tance Assist DISTRONIC is operational again and can be acti vated (
→page 163).
Active Distance Assist Cur-
rently Unavailable See
Operator's Manual *A
ctive Dis tance Assist istemp orarily una vailable.
The ambient conditions are outside the sy stem limitations(
→page 162).
#Drive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
Active Distance Assist Inop-
erative *A
ctive Dis tance Assist is malfunctioning.
Other driving sy stems and driving saf etysy stems may also malfunction.
#Vi sit a qualified specialist workshop.
Active Steering Assist Cur-
rently Unavailable See
Operator's Manual *A
ctive Steering Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limitations (
→page 167).
#Drive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
#If necessar y,clean the windshield in the camera's field of vision.
Display messages and warning/indicator lamps 425

Displaymessages
Possible causes/consequences and MSolutions
Active Steering Assist Inop-
erative *A
ctive Steering Assist is malfunctioning. Active Dis tance Assist remains available.
#Visit a qualified specialist workshop.
¯- - - mph *C
ruise control cannot be activated as not all activation conditions are fulfilled.#Obser vethe activation conditions for cruise control .
Cruise Control Canceled *C
ruise control has been deactivated.
If th ere is an additional warning tone, cruise control has been switched off au tomatical ly(
→page 159)
(→page 160).
Cruise Control Inoperative *C
ruise control is malfunctioning.
#Visit a qualified specialist workshop.
Lowering *T
hevehicle le vel may be lo weredfo rth efo llowing reasons:
Ryo u ha veselected a dif fere nt drive program.
Ryo u ha veexc eeded a critical speed.
Ryou ha vechanged theve hicle le velby pressing a button.
Max. Speed 22 mph *T
hevehicle has been set totranspo rtleve l.Tr ansport le vel is not a permissible driving le vel. Only suitable for trans‐
porting theve hicle.#Do not drive fasterthan 22 mph (35 km/h).
426
Display messages and warning/indicator lamps

Engine
Display messagesPossible causes/consequences and MSolutions
Check Coolant Level See
Operator's Manual *T
he coolant le vel is too lo w.
* NO
TEEngine damage duetoinsuf ficient coolant
#Av oid long journe yswith insuf ficient coolant.
#Ad d coolant .
?
Coolant Too Hot Stop Vehi-
cle Turn Engine Off *T
he coolant is too hot.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
&
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could
come into contact with hot gases or other escaping operating fluids.
#Before opening the hood, allow the engine tocool down.
#Intheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
#Wa it until the engine has cooled down.
#Make sure that the air supply tothera diator is not obstructed.
#Av oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 248 °F (120 °C).
Display message s andwarning/indicator lamps 427

Displaymessages
Possible causes/consequences and MSolutions
?
*Thefan mo tor is defective.
#Av oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 248 °F (120 °C).
#
Stop Vehicle See Opera-
tor's Manual *T
he battery is no longer being charge d and the battery charge leve l is too lo w.
* NO
TEPossible engine damage if you continue dr iving#Do not continue dr iving under any circum stances.
#Consult a qualified specialist workshop.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances.
#Switch off the engine.
#Consult a qualified specialist workshop.
#
Start Engine See Opera-
tor's Manual *T
he engine is off and the battery charge leve l is too lo w.
#Switch off electrical consumers that are not required.
#Leavethe engine running for a few minutes, or drive for a longer dis tance.
The battery charge s.
428
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
#
Stop Vehicle Leave Engine
Running*T
he battery charge leve l is too low and must be charge d.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances.
#Lea veengine running.
#Wa it until the display message disappears before pulling away.
4
Check Engine Oil At Next
Refue ling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine damage causedbydriving with insuf ficient engine oil#Av oid long journe yswith insuf ficient engine oil.
#Check the engine oil le vel when next refueling.
To p up the engine oil (
→page 331).
No tes on engine oil (
→page 398).
8
Gas Cap Loose *T
here has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is
leaking.
#Close the fuel filler cap.
#If th e fuel filler cap was already proper lyclosed: consult a qualified specialist workshop.
Display messages and warning/indicator lamps 429

Displaymessages
Possible causes/consequences and MSolutions
8
Fuel Level Low*T
he fuel supply has dropped into there ser verange.
#Re fuel.
Tire s
Displa ymessages
Possible causes/consequences and MSolutions
h
Please Correct Tire Pres-
sure*T
he tire pressure is too low in at least one of the tires, or the tire pressure dif fere nce between the wheels is too
great.
#Check the tire pressure and add air, if necessar y.
#Whenthe tire pressure is cor rect, restart the tire pressure monitoring sy stem .
430
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
h
Check Tires*T
he tire pressure in one or more tires has dropped significantl y.The wheel position is displa yed.
&
WARNING Risk of an accident due toinsuf ficient tire pressure
Ti re pressures that are too low pose thefo llowing hazards:
RThe tires may bur st, especially as the load and vehicle speed increase.
RThe tires may wearexc essively and/or une venly, which may greatly impair tire traction.
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
#Obser vethere commended tire pressure.
#Ad just the tire pressure if necessar y.
#Stop theve hicle, paying attention toroad and traf fic conditions.
#Check the tire pressure and the tires.
Display messages and warning/indicator lamps 431

Displaymessages
Possible causes/consequences and MSolutions
h
Warning Tire Malfunction*T
he tire pressure in one or more tires has dropped suddenly. The wheel position is displa yed.
&
WARNING Risk of an accident from driving wi thaflat tire
Flat tires are dangerous in thefo llowing ways:
RThe tires can overheat and cause a fire .
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
#Do not drive with a flat tire.
#Observ eth e no tes on flat tires.
No tes on flat tires (→page 342).
#St op theve hicle, paying attention toroad and traf fic conditions.
#Check the tires.
Tire Press. Monitor Cur-
rently Unavailable *N
o signals can be receive d from the tire pressure sensors due tostro ngradio signal source inter fere nce. The tire
pressure monito ring sy stem is temp orarily una vailable.
#Drive on.
The tire pressure monitoring sy stem restarts automatically as soon as the cause has been rectified.
432
Display messages and warning/indicator lamps