Keys does not unlock the door

[Kimblis]

Hello guys, my remote key does not unlock the car or the trunk. I tried to replace the batteries and still same problem. It locks the car just fine as before. Checked the 8th fuse- it is in good condition. When I press unlock button on my key, I don't even see red LED light that I see when I press lock button. Any ideas?

 

[Kimblis]

Hey, my remote keys does not unlock the door or trunk. It locks car as it should. When I press lock button I see red LED light, however when I press unlock I don't. Tried to chance keys batteries and 8th fuse. Neither helped so far. Any ideas?

 

[mercman111]

check fuse again renew for a new one

 

[Kimblis]

Just tried that, didnt help. I would like to point out the fact that when I click unlock button the red led light does not show up, so probably there is a problem with keys itself, right?

 

[mercman111]

right

 

[LostKiwi]

Have you tried your other key?

Does it work pointing the key at the drivers door? If it doesn't work pointing at the drivers door then very likely the key has a bad switch.

 

[Blobcat]

Have you tried your other key?

Does it work pointing the key at the drivers door? If it doesn't work pointing at the drivers door then very likely the key has a bad switch.

Or it’s been dropped a few times and the RF coil has fallen off the board

 

[LostKiwi]

Or it’s been dropped a few times and the RF coil has fallen off the board

But then it wouldn't lock or unlock. This one locks fine.

 

[Kimblis]

Have you tried your other key?

Does it work pointing the key at the drivers door? If it doesn't work pointing at the drivers door then very likely the key has a bad switch.

I have only 1 key :/ no, it does not work that way neither. Is it very expensive to fix that stuff?

 

[Timeandleisure]

Hello,
Perhaps something here might help:

Mercedes benz key fob not working - How to get car key to work again - Locksmith Lion Naples FL

It’s always annoying when the key fob for your car doesn’t work. Fortunately, there are several steps you can take to address this issue. This article will explore some steps you can take to solve the problem of a Mercedes Benz key fob not working to unlock doors or a trunk. Specifically, this...

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[LostKiwi]

I have only 1 key :/ no, it does not work that way neither. Is it very expensive to fix that stuff?

New key unless you can find someone to repair it.