Key FOB
Thread Starter
Member
Joined: Nov 2014
Posts: 167
Likes: 22
2003 CLK500, 2008 e350
Key FOB
2012 E350. One of my two key fobs will not start the car. It locks/unlocks doors fine, opens the trunk fine. However, it won't start the car. No starter clicks, just dead silence. I have checked the infrared light is functioning. Have changed batteries a few times. Still dead silence. I do have a second remote that works fine.
Any ideas or suggestions?
Any ideas or suggestions?
Member
Joined: Dec 2022
Posts: 87
Likes: 34
From: Slovakia
2011 E350 CDI 4Matic, Rover 75, Chevy K2500, 2 motorcycles
2012 E350. One of my two key fobs will not start the car. It locks/unlocks doors fine, opens the trunk fine. However, it won't start the car. No starter clicks, just dead silence. I have checked the infrared light is functioning. Have changed batteries a few times. Still dead silence. I do have a second remote that works fine.
Any ideas or suggestions?
Any ideas or suggestions?
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
What's the voltage of the batteries when you change them? Do you have a volt meter? Lots of dead batteries out there sold as new but they've been on the shelf too long. When you put it into the ignition does it turn all the way? You could take out the battery and try some electrical contact cleaner if you've checked the battery voltage and it's good. Or get a tile/apple airtag for your other good key so you don't lose that one. A new key is rather pricey.
Thread Starter
Member
Joined: Nov 2014
Posts: 167
Likes: 22
2003 CLK500, 2008 e350
Voltage on all batteries used was 3+ volts. Even did the electrical contact cleaner, still no change. Strange thing is I used the car yesterday, no problems. Parked it overnight and the on fob wouldn't start it. Everyother function on the fob worked. Gotta be something in the fob since my other one works fine.
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
Then it just sounds like a bad fob. It's usually either a bad fob or a problem with the electronic ignition. It's worse if it's the electronic ignition. Do you have keyless go?
Thread Starter
Member
Joined: Nov 2014
Posts: 167
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2003 CLK500, 2008 e350
My other key works fine. Can these keys loose programming?
MBWorld Fanatic!
Joined: May 2021
Posts: 2,528
Likes: 2,046
From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
However, these keys use induction, i.e. do not require battery to communicate with the ignition. You can take the batteries from your working key fob and it will still start your car. Batteries are opening the doors, and communicate with keyless go.
Can the be repaired? Not an expert on it. Did your keyfob fall on the ground, or got wet. If the inductive coil inside got damage, the key is a paper weight. In the meantime, careful with the working key.
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Thread Starter
Member
Joined: Nov 2014
Posts: 167
Likes: 22
2003 CLK500, 2008 e350
Thanks for all the replies. A friend, who is a locksmith, has programmed many blank MB fobs. He’s going to take a look and see if there’s something I’m missing. Worse that can happen is I get a new fob.
Junior Member
Joined: Feb 2023
Posts: 23
Likes: 11
W212 E550 4 matic
ESL
I have a c300 that had same problem
it was the ESL
I am positive it’s a common issue with that W204
here is a link to issue
https://www.benzworld.org/threads/co...thers.3046041/
it was the ESL
I am positive it’s a common issue with that W204
here is a link to issue
https://www.benzworld.org/threads/co...thers.3046041/
Junior Member
Joined: May 2020
Posts: 53
Likes: 14
W212
another user just posted a similar problem
https://mbworld.org/forums/e-class-w...nk-no-aux.html
if no light comes up in the dash when you turn the keys, its likely the esl is broken. Check the link, I posted some other threads there that you can read..
https://mbworld.org/forums/e-class-w...nk-no-aux.html
if no light comes up in the dash when you turn the keys, its likely the esl is broken. Check the link, I posted some other threads there that you can read..
Out Of Control!!
Joined: Jul 2003
Posts: 15,901
Likes: 4,636
From: North Scottsdale, AZ
'71 Pinto
