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

Display messages
Possible causes/consequences and 0050
0050Solutions
00AF Replace Key Battery *T
he SmartK eybattery is dischar ged. #
Replace the battery (→ page 60).
00AF
Place the Key in the
Marked Space See Opera-
tor's Manual *T
he SmartK eydetection function is malfunctioning. #
Change the location of the SmartK eyintheve hicle. #
Start theve hicle with the SmartK eyinthe slot (→ page132).
00AF
Don't Forget Your Key *A
warning tone also sounds. This messa gereminds youto take your SmartK eywith you when you lea vetheve hicle. Display messages and
warning/indicator lamps 455

Ve
hicle Display messages
Possible causes/consequences and 0050
0050Solutions
006F Rear Left Backrest Not
Latched (Example) *T
he cor responding rear seat backrest is not engaged. #
Foldthe cor responding seat backrest back until it engages.
006F
Front Left Seat Backrest
Not Locked (Example) *T
he seat backrest of the cor responding front seat is not engaged. #
Foldthe seat backrest back until it engages.
00CC Steering Malfunction Stop
Immediately See Opera-
tor's Manual *T
hesteering is malfunctioning Steering capability is considerably impaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardized. #
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. #
Consult a qualified specialist workshop. 456
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions #
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. #
Consult a qualified specialist workshop.
00CC Steering Malfunction
Increased Physical Effort
See Operator's Manual *T
he po wer assi stance forth esteering is malfunctioning. &
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y.
Active Hood Malfunction
See Operator's Manual *T
he active hood (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. #
Consult a qualified specialist workshop.
0083 *T
he hood is open. &
WARNING Risk of accident if the engine hood is unlatched while driving
An unloc ked engine hood may open up when theve hicle is in motion and block your vie w. #
Never unlatch the engine hood while driving. #
Before every trip, ensure that the engine hood is latched. Display messages and
warning/indicator lamps 457

Display messages
Possible causes/consequences and 0050
0050Solutions #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the hood.
0051 *A
t least one door is open. #
Close all doors.
0084 *T
he trunk lid is open. &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if the trunk lid is open when the engine is running, especial lyifth eve hicle is in motion. #
Alw ays switch off the engine before opening the trunk lid. #
Never drive with the trunk lid open. #
Close the trunk lid.
00B2
Check Washer Fluid *T
hewasher fluid le vel in thewa sher fluid reser voir has dropped below the minimum. #
Addwa sher fluid (→ page 342). 458
Display messages and warning/indicator lamps

Climate control
Displ
aymessages
Possible causes/consequences and 0050
0050Solutions
Air Conditioning Malfunc-
tion See Operator's Manual *O
peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode. #
Have the climate control sy stem checked at a qualified specialist workshop.
Let fresh air into the vehi-
cle interior. Air Condition-
ing Malf. Visit Workshop *T
he climate contro l system is malfunctioning. &
WARNING Risk of inju ryand accident due toan insuf ficient supply of fresh air
If th e climate control sy stem is malfunctioning, carbon dioxide le vels may inc rease in theve hicle interior.
Breathing in carbon dioxide may cause dizziness. #
Open the window toensure that there is a suf ficient supply of fresh ai r. #
Open the window toensure that there is an adequate supply of fresh air. #
Visit a qualified specialist workshop immediatel y. Soft
top Display messages
Possible causes/consequences and 0050 0050Solutions
0059 *T
he on-board electrical sy stem voltage is too lo w. #
Start the engine. Display messages and
warning/indicator lamps 459

Display messages
Possible causes/consequences and 0050
0050Solutions
12 V Battery See Opera-
tor's Manual
0059
Open/Close Convertible
Top Completely *T
he soft top is not loc ked. If you drive at speeds of more than 37 mph (60 km/h) you cannot open or close the soft
to p. #
Do not drive at speeds greater than 37 mph (6 0 km/h). #
Fully open or close the soft top.
0059 Convertible Top Lowering *T
he soft top is not fully opened or closed. The hydraulics are depressurizing. #
Fully open or close the soft top.
0059 Convertible Top Operation
Possible to 37 mph *I
fyo u drive at speeds of more than 37 mph (6 0 km/h) you cannot open or close the soft top. #
Do not drive at speeds greater than 37 mph (6 0 km/h). #
Fully open or close the soft top.
0059 *T
hevehicle is stationary and you try toopen or close the soft top. #
Depress the brake pedal. #
Push or pull the soft top switch again until the soft top is fully open or closed. 460
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
While stationary, apply the
brakes before operating
the soft top.
0058
Trunk Partition Open *T
he trunk partition is open. #
Close the trunk partition. Lights
Display messages
Possible causes/consequences and 0050 0050Solutions
0049 Intell. Light System Inoper-
ative *T
he Intelligent Light Sy stem is defective. The lighting sy stem continues tofunction properly without the functions of
th e Intelligent Light Sy stem. #
Visit a qualified specialist workshop.
0049 Check Left Low
Beam (Example) *T
he cor responding light source is defective. #
Drive on carefully. #
Visit a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 461

Display messages
Possible causes/consequences and 0050
0050Solutions
% LED light bulbs: the display message forth e cor responding lamp appears only when allthe light-emitting diodes
in the lamp ha vefailed.
0049 Active Headlamps Inopera-
tive *T
he active headlamp s are defective. #
Visit a qualified specialist workshop.
0049 Switch Off Lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch tothe0058 position.
0049 Malfunction See Opera-
tor’s Manual *T
heexterior lighting is defective. #
Visit a qualified specialist workshop.
0049 Switch On Headlamps *Y
ou are driving without lo w-beam headlamps. #
Turn the light switch tothe0058 or0058 position. 462
Display messages and warning/indicator lamps