E-Class - Interactive Owner's Manual [In depth | Practical advice

Changing the batteries

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Notes

It is advisable to have the batteries replaced at a qualified specialist workshop, e.g. at a Mercedes-Benz Service Centre.

Risk of poisoning

Batteries contain toxic and caustic substances. For this reason, keep batteries away from children.

If a battery is swallowed, consult a doctor immediately.

Environmental note

Do not dispose of batteries with the household rubbish. They contain highly toxic substances.

Take discharged batteries to a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre, or to a special collection point for old batteries.

Key or KEYLESS GO key*

Checking the batteries

	Press the or button.
	The batteries are in order if the battery charge indicator lamp lights up briefly.

Changing the batteries

You require two CR 2025 3 V cell batteries.

Remove the emergency key element from the key more.

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Emergency key element

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Battery tray

	Insert emergency key element into the opening in the key and push in the direction of the arrow.
	Battery tray is released.
	Pull battery tray out of the key.

Batteries

	Remove old batteries from the battery tray.
	Insert the new batteries beneath the contact spring with the positive terminal facing upwards. Use a lint-free cloth to do so.
	Push the battery tray back into the key housing until the battery tray engages.
	Check the function of all key buttons on the vehicle.

Auxiliary heating* remote control

One 6V pin battery, type 2CR11108 is required.

Battery

Battery cover

	Prise apart the side arms of battery cover and slide off battery cover .
	Remove old battery .
	Insert the new battery. Observe the polarity signs on the back of the remote control when doing so.
	Slide battery cover back onto the remote control.
	Use the remote control to check the vehicle's auxiliary heating functions.