Key fob issues
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 69
Likes: 2
From: Lindenhurst
2010 e350 coupe
Key fob issues
Hi everyone,
For some reason sometimes but more often now I been having problems with the key fob not working and killing the batteries fast. When I bought the car I changed the battery every 8 months or so now it barely last a month before I have to change it again. Now I changed the battery 2 weeks ago and it order for the key to work I have to take out the battery and put it back in so I can unlock my car. A couple hours later I can unlock the my car without any issues and it would be fine for a couple of days. But it's weird that everytime I put a brand new battery works fine for the first 2 weeks.So now I believe it's not the battery so I'm wondering if anyone else had this problem and got it fixed.
For some reason sometimes but more often now I been having problems with the key fob not working and killing the batteries fast. When I bought the car I changed the battery every 8 months or so now it barely last a month before I have to change it again. Now I changed the battery 2 weeks ago and it order for the key to work I have to take out the battery and put it back in so I can unlock my car. A couple hours later I can unlock the my car without any issues and it would be fine for a couple of days. But it's weird that everytime I put a brand new battery works fine for the first 2 weeks.So now I believe it's not the battery so I'm wondering if anyone else had this problem and got it fixed.
Super Member
Joined: Oct 2013
Posts: 584
Likes: 147
From: Bay Area, CA
2010 E550
Do you have a second key? If these issues don't exist in that second key then it's the first key :B
Also, how close do you leave the keys to your car? If your car has key-less go it might be communicating with the key constantly if it's too close.
Also, how close do you leave the keys to your car? If your car has key-less go it might be communicating with the key constantly if it's too close.
Last edited by Peachy; Sep 27, 2016 at 08:17 PM.
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
When was the last time you were at the dealer? I think there's some thread that mentions a TSB and I seem to recall there was one where there was some update that was needed to fix that problem.
Oh here it is:
https://mbworld.org/forums/e-class-w...ml#post6775764
Oh here it is:
https://mbworld.org/forums/e-class-w...ml#post6775764
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 69
Likes: 2
From: Lindenhurst
2010 e350 coupe
I do have a second key which I have been using since yesterday because they other key stopped working. I did read that before about the key being too close to the car but My keys are usually 20 to 30 feet away from my car when I'm home so I really doubt my key would still communicate with my car being that far away.
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 69
Likes: 2
From: Lindenhurst
2010 e350 coupe
When was the last time you were at the dealer? I think there's some thread that mentions a TSB and I seem to recall there was one where there was some update that was needed to fix that problem.
Oh here it is:
https://mbworld.org/forums/e-class-w...ml#post6775764
Oh here it is:
https://mbworld.org/forums/e-class-w...ml#post6775764
MBWorld God!
Joined: Jul 2010
Posts: 31,279
Likes: 3,917
From: on my way
2012 CLS63
do the prongs inside that touch the battery make a good connection? Might need to bend them up just a muff hair to make better contact.....just an idea and I wanted to say muff hair too........GL
