change key battery MERCEDES-BENZ S-CLASS CABRIOLET 2018 Owner's Manual

ProblemPossible causes/consequences and MSolutions
RThe SmartKeyis defective.
#Check the battery using the battery check lamp and replace if necessar y.
#Usethe mechanical keyto lock or unloc k.
#Have the SmartK eychecked at a qualified specialist workshop.
Yo u ha velost a SmartK ey.
#Ha ve the SmartK eydeactivated at a qualified specialist workshop.
#If necessar y,ha ve the loc kschanged 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.
Opening and closing 61

SmartKey
Displaymessages
Possible causes/consequences and MSolutions
Â
Obtain a New Key*T
he SmartK eyneeds tobe replaced.
#Visit a qualified specialist workshop.
Â
Replace Key Battery *T
he SmartK eybattery is dischar ged.
#Re place the battery .
Â
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 eyinthestow age compartment .
434
Display messages and warning/indicator lamps