40g
On a 2005 e320 4matic, the battery is located in the trunk. It is in the rear side, next to the spare wheel.
on the front and back.
Battery is under Rear passenger seat.
It is located under the back seat.
The battery in the keyless remote of a 1999 Mercedes E320 is changed by prying off the back cover and lifting the battery out. The battery will typically last 2 years or more under normal use.
Cr2025
check under rear passeger seat.
Could be the alternator is not charing correctly.
under r r seat
under the hood. top left
Next to the spare tire in the trunk.