my dashboard says replace key fob battery, which i have done dozens of time
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Joined: Feb 2018
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ML350 2011
my dashboard says replace key fob battery, which i have done dozens of time
ML350 2011 not recognizing key fob --says put in new battery 2025 3v which i've done and tested same so i need while in the car unlock doors to start car. they do unlock the doors externally if key not in pocket. dealer says $200 new key needed, i doubt it? blakeomlie@gmail.com m)8323504064
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Joined: May 2017
Posts: 1,234
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From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
Mine pulled the same crap on me. I replaced the dead 2025 batteries in both fobs with 2032's. Worked great for 2-3 months, then I started getting the battery symbol on my fob only. I too could still use all the functions on my fob. Just change it out for another 2025 and all's good in the universe again.....for now.
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Joined: Apr 2016
Posts: 1,124
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From: NW
2018 GLC 4MATIC
Not sure if this related, but some info is better than nothing.
Somewhere I was reading about batteries for MBs and all were talking about Panasonics, maybe Panasonic as OEM battery must be only used and some of them are fakes.
I did buy mine from Amazon, second year no issues.
Somewhere I was reading about batteries for MBs and all were talking about Panasonics, maybe Panasonic as OEM battery must be only used and some of them are fakes.
I did buy mine from Amazon, second year no issues.
MBWorld Fanatic!
Joined: May 2017
Posts: 1,234
Likes: 155
From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
I don't believe I had to do this when I initially bought the truck, and both fobs were dead in the water for years. As well, I didn't have to do this when replacing the batteries again as per my previous post.
MBWorld Fanatic!
Joined: May 2017
Posts: 1,234
Likes: 155
From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
Not sure if this related, but some info is better than nothing.
Somewhere I was reading about batteries for MBs and all were talking about Panasonics, maybe Panasonic as OEM battery must be only used and some of them are fakes.
I did buy mine from Amazon, second year no issues.
Somewhere I was reading about batteries for MBs and all were talking about Panasonics, maybe Panasonic as OEM battery must be only used and some of them are fakes.
I did buy mine from Amazon, second year no issues.
Newbie
Joined: Feb 2018
Posts: 1
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From: NY
14' ML550, 04' RX8, 92' Celica
Do you have problems with keyless entry? It wouldn't detect my key fob but i was still able to unlock and lock by physically pushing my key fob buttons. I replaced my key fob battery and it was giving me trouble 3 weeks after. What I ended up doing was using a small spring to push down the battery in the key fob. It hasn't given me any trouble since (knock on wood), it's been about a month now on the same battery. Hope this helps.
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Member
Joined: Sep 2015
Posts: 97
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From: Toronto, Canada
2012 Mercedes-Benz S350 BlueTEC 2013 ML350 BlueTEC
Hi,
I have had the same problem with 1 slight difference. I replaced the batteries (from Wal-Mart) in both key fobs, and everything was fine for a while. After about 6 months I had to replace the battery ONLY in the spare key fob. The key fob I use every day still works fine. Go figure...
Jeff
I have had the same problem with 1 slight difference. I replaced the batteries (from Wal-Mart) in both key fobs, and everything was fine for a while. After about 6 months I had to replace the battery ONLY in the spare key fob. The key fob I use every day still works fine. Go figure...
Jeff
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