R350 Key Fob not working?
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Joined: Mar 2016
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Mercedes R350
R350 Key Fob not working?
One day randomly my mercedes R350 2006 Key fob stopped working, it won't turn over or start the car, buttons don't work on it either although the red light flashes when a lock/unlock button is pressed, very frustrated I tried changing battery and checked fuses they all look good, had no luck, any ideas what it could be?
any advice much appreciated thank you
ps: i don't have a spare key to test it, and new key costs $350
any advice much appreciated thank you
ps: i don't have a spare key to test it, and new key costs $350
Last edited by Tony SV; Mar 31, 2016 at 03:48 AM.
Member
Joined: Jul 2015
Posts: 166
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2002 C240 (W203) 2007 R500 (W251)
Without wanting to provide bad advice, perhaps a battery disconnect/reconnect may reset the connection?
The reason is my friends 2005 VW Golf exhibited the same problems and after following a dozen instructions that didn't work, this did.
However, I don't know what items you have to also reset on an R350 after disconnecting a battery... I know on my w203 there's a few things like windows, ESP, that needs to be done. .. I imagine it would be the same here.
Best of luck
The reason is my friends 2005 VW Golf exhibited the same problems and after following a dozen instructions that didn't work, this did.
However, I don't know what items you have to also reset on an R350 after disconnecting a battery... I know on my w203 there's a few things like windows, ESP, that needs to be done. .. I imagine it would be the same here.
Best of luck
Junior Member
Joined: Nov 2015
Posts: 47
Likes: 1
W220
I like JonMac's suggestion, as some electronic issues resolve themselves after a full power off cycle. His cautions are pertinent as well. Just one last possibility, which I literally have done myself... Do you happen to have two mercedes cars and are you possibly using the key of the one to open/use/start the other? I did this a few weeks ago when our new (used) merc had arrived and our old/outgoing was still here. Pretty dumb of me :-)
