Mercedes-Benz S-Class 2020 Operator's Manual page 69

You require a CR 2032 3 V cell battery.
R
Mercedes-Benz recommends that you have the
battery replaced at a qualified specialist work‐
shop.
Remove the emergency key (
/
#
Press release knob 2 down fully and slide
#
cover 1 in the direction of the arrow.
Fold out cover 1 in the direction of the
#
arrow and remove.
Remove battery compartment 3
#
out the discharged battery.
Insert the new battery into battery compart‐
#
ment 3. Observe the positive pole marking
in the battery compartment and on the bat‐
tery when doing this.
Push in battery compartment 3.
#
page 66).
Re-attach cover
#
engages.
and take
1 and push it until it
Opening and closing 67