2019 MERCEDES-BENZ S-CLASS CABRIOLET Owner's Manual

Display messages
Possible causes/consequences and 0050
0050Solutions
Check Engine Oil Level
(Add 1 quart) *
NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
When next refueling, add 1 quart of engine oil.
To p up engine oil (→ page 340).
No tes on engine oil (→ page412).
00B2 Che ck Engine Oil At Next
Refueling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Check the engine oil le vel when next refueling.
Ad d engine oil (→ page 340).
No tes on engine oil (→ page412). Tr
ansmission Display messages
Possible causes/consequences and 0050
0050Solutions
* The transmission is malfunctioning. The transmission shifts toposition 005Cautomaticall y. Displ
aymessa ges and warning/indicator lamps 447

Display messages
Possible causes/consequences and 0050
0050Solutions
Transmission Malfunction
Stop #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Switch the transmission toposition 005D. #
Consult a qualified specialist workshop.
Stop Vehicle Leave Engine
Running Wait Transmission
Cooling *T
he transmission is overheating. Pulling away may be temp orarily impaired or not possible. #
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 vethe engine running. #
Wait until the display message disappears before pulling away.
To Deselect P or N,
Depress Brake and Start
Engine *
Yo u ha veattem ptedto shift the transmission out of position 005Dor005C into ano ther transmission position. #
Depress the brake pedal. #
Start the engine.
Apply Brake to Shift from
'P' *
Yo u ha veattem ptedto shift the transmission out of position 005Dand into ano ther transmission position. #
Depress the brake pedal.
Service Required Do Not
Shift Gears Visit Dealer *T
he transmission is malfunctioning. The transmission position can no longer be shif ted. #
When the transmission is in position 005B, consult aqualified specialist workshop and do not change the trans‐
mission position. #
For all other transmission positions, park theve hicle safely. #
Consult a qualified specialist workshop or breakdown service.
*T he transmission is malfunctioning. Reversege ar can no lon ger be engaged. 448
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
Reversing Not Possible
Service Required #
Visit a qualified specialist workshop.
Auxiliary Battery Malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Visit a qualified specialist workshop. #
Untilthen, manually set the transmission toposition 005Dbefore you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake.
N Permanently Active Risk
of Rolling Away *
While theve hicle is rolling or while you are driving, the transmission has been shif tedto position 005C. #
Depress the brake pedal tostop and, when theve hicle is stationar y,shift the transmission toposition 005D. #
Tocontinue your journe y,shift the transmission toposition 005Bor005E.
Only Shift to 'P' when Vehi-
cle is Stationary *
The transmission can only be shif tedto position 005Dwhen theve hicle is stationar y.
Driver's Door Open &
Transmission Not in P Risk
of Vehicle Rolling Away *
The driver's door is not fully closed and the transmission is in position 005E,005Cor005B. #
Shift the transmission toposition 005Dwhen you park theve hicle.
To Engage Transmiss. Posi-
tion R First Depress the
Brake *
You ha vetried toswitch totransmission position 005E. #
Dep ress the brake pedal. #
Shift the transmission toposition 005E.
Shift to 'P' *
Shift the selector le verto position 005D. Display messages and
warning/indicator lamps 449

Display messages
Possible causes/consequences and 0050
0050Solutions #
Pull over and stop theve hicle. #
Shift the transmission toposition 005D.
Shift to 'P' or 'N' to Start
Engine *
You ha vetried tostart the engine in transmission position 005Dor005C. #
Shift the transmission toposition 005Dor005C. Ti
res Display messages
Possible causes/consequences and 0050 0050Solutions
0077 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:
R The tires can overheat and cause a fire.
R The 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. #
Obse rveth e no tes on flat tires. No
tes on flat tires (→ page 356). 450
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tires.
0077 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:
R The tires may bur st, especially as the load and vehicle speed increase.
R The tires may wearexc essively and/or une venly, which may greatly impair tire traction.
R The 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. #
Adjust the tire pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tire pressure (→ page377) and the tires.
0077 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. #
When the tire pressure is cor rect, restart the tire pressure monitoring sy stem (→ page 383). Display messages and
warning/indicator lamps 451

Display messages
Possible causes/consequences and 0050
0050Solutions
0077 Tire Press. Monitor Cur-
rently Unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tire pressure sensor are
re cei ved. The tire pressure monitoring 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.
0077
Wheel Sensor(s) Missing *T
he tire pressure sensor signal is missing from one or more tire(s). The pressure of the af fected tire is not dis‐
pl ay ed. #
Have the defective tire pressure sensor replaced at a qualified specialist workshop.
0077
Tire Pressure Monitor Inop-
erative No Wheel Sensors *T
he wheels ins talled do not ha vesuitable tire pressure sensors. The tire pressure monitoring sy stem is deactivated. #
Install wheels with suitable tire pressure sensors.
0077 Tire Press. Monitor Inopera-
tive *T
he tire pressure monitoring sy stem is defective. &
WARNING Thereis a risk of an accident if the tire pressure monitoring sy stem is malfunctioning
If th e tire pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss
in one or more of the tires.
Und erinflated tires ma y,forex ample, impair the driving, steering and braking characteristics. 452
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions #
Have the tire pressure monitoring sy stem checked at a qualified specialist workshop. #
Visit a qualified specialist workshop.
Tires Overheated *A
t least one tire is overheating. The af fected tires are displ ayed in red. At temp eratures close tothe limit value, the
tires are displa yed in yello w. #
Drive more sl owly.
Decrease Speed *A
t least one tire is overheating. The af fected tires are displ ayed in red. At temp eratures close tothe limit value, the
tires are displa yed in yello w. &
WARNING Risk of an accident from driving wi thove rheated tires
Overheated tires may bur st, particularly at high speeds. #
Reduce speed so that the tires cool down. #
Reduce speed so that the tires cool down. Display messages and
warning/indicator lamps 453

SmartK
ey Display messages
Possible causes/consequences and 0050
0050Solutions
00AF Key Not Detected (red dis‐
play message) *T
he SmartK eycannot be de tected and may no longer be in theve hicle.
The SmartK eyis no longer in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that the SmartK eyis in theve hicle.
If th e SmartK eydetection function has a malfunction due toast ro ng radio signal source: #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Place the SmartK eyinthe mar ked space forst arting the engine with the SmartK ey (→page 132).
00AF Ob tain a New Key *T
he SmartK eyneeds tobe replaced. #
Visit a qualified specialist workshop.
00AF Key Not Detected (white
display message) *T
he SmartK eyis cur rently und etected. #
Change the location of the SmartK eyintheve hicle. #
Ifth e SmartK eyisstill not recognized, start the engine with the SmartK eyinthe mar ked space (→ page132). 454
Displaymessa ges and warning/indicator lamps