Key fob battery replacement message on dashboard

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SomT

New Member
Joined
Dec 8, 2019
Messages
7
Location
UK
Car
C Class Bluetec 2014 Diesel Hybrid
Hi everyone!

I have a year 2014 C 300 Bluetec Hybrid (Diesel) Sports Premium Plus which I just got about 2.5 months back.

It's giving me a dashboard error saying I should replace the key fob batteries. This is the same with the backup one too.

Is this something that needs to be done at a service centre or can this be done on your own? Where else can I get these batteries?

Thanks!
 
Yes u can replace them yourself,
C2020 can’t remember the exact ones.
I had same issue as you, both keys were showing low battery.
I did find if u take the battery out then put it back again it would carry on for a while until it came up with the low battery message again.
I found the branded batteries better



Sent from my iPhone using Tapatalk
 
I think they’re CR 2025 3V. Easy to get the case apart using the emergency metal key. Your handbook should have full instructions and some pictures.
 
It will be detailed i your handbook. Easily done oneself
 
Literally just done the E55 key fob 5 minutes ago.

CR2025, simple job, easy enough but I did this yesterday and the Duracell batteries I had also had same message, put new Panasonic in this time I've just bought.
 
Thanks, folks. I found a YouTube video showing me how to do it and I managed to figure it out. Thanks again.
 

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