Mercedes-Benz GLA 180 Owner's Manual page 86

Press emergency key element ; into the
X
opening in the key in the direction of the arrow
until battery tray cover : opens. When doing
so, do not hold cover : shut.
Remove battery tray cover :.
X
Repeatedly tap the key against your palm until
X
battery = falls out.
Insert the new battery with the positive ter-
X
minal facing upwards. Use a lint-free cloth to
do so.
Make sure that the surface of the battery is
X
free of lint, grease and other contamination.
Insert the front tabs of battery tray cover :
X
and then press to close it.
Insert the emergency key element into the
X
key ( page 82).
Y
Check the function of all key buttons on the
X
vehicle.
Key
83
Z