Practical advice
Changing the batteries
X Using emergency key element 1, press
Changing the batteries
Key
the grey release catch in the opening in the
Notes
Checking the batteries
direction of arrow 2.
Battery tray 4 is released.
It is advisable to have the batteries replaced
X Press the j or k button.
at a qualified specialist workshop, e.g. at a
X Pull battery tray 4 out of the key in the
The batteries are in order if the battery
Mercedes-Benz Service Centre.
charge indicator lamp lights up briefly.
direction of arrow 3.
G Risk of poisoning
Changing the batteries
Batteries contain toxic and caustic sub-
stances. For this reason, keep batteries
You require two CR 2025 3 V cell batteries.
away from children.
X Remove the emergency key element from
If a battery is swallowed, consult a doctor
the key ( Y page 241).
immediately.
H Environmental note
Do not dispose of batteries with the house-
hold rubbish, as they contain highly toxic
substances.
Take discharged batteries to a qualified
X Remove old batteries 1 from the battery
specialist workshop, e.g. a Mercedes-Benz
tray.
Service Centre, or to a special collection
X Insert the new batteries underneath con-
point for old batteries.
tact spring 2 with the positive terminal
facing upwards. Use a lint-free cloth to do
so.
1 Emergency key element
X Push the battery tray back into the key
2 To release the battery tray
housing until the battery tray engages.
3 To pull out the battery tray
X Check the function of all key buttons on the
4 Battery tray
vehicle.
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English 
