change key battery MERCEDES-BENZ S-CLASS CABRIOLET 2019 Owner's Manual

Problem
Possible causes/consequences and 0050
0050Solutions
R The SmartK eyis defective. #
Check the battery using the battery check lamp and replace if necessary (→ page 60). #
Use the emer gency keyto lock or unlock (→ page 60). #
Have the SmartK eychecked at a qualified specialist workshop.
Yo u ha velost a SmartK ey. #
Have the SmartK eydeactivated at a qualified specialist workshop. #
If necessar y,ha ve the mechanical lock changed as well. Doors
Un
locking and opening doors from the inside #
Pull door handle 2.
Locking pin 1pops up when the door is
unloc ked. Locking
the doors from the inside #
Take the SmartK eywith you when exiting the
ve hicle and close the driver's door. #
Press down locking knob 1onthe driver's
door from the front passenger seat. 62
Opening and closing

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