Don,

Same thing for my 2004.
Turns out the car was reading the key fab panic circuitry as ON.
The only way to make all the flashing stop was to open the key fab (screwdriver) and remove the batteries.
Yes, that means key open and lock from now on.
Impossible to flash panic off the key fab.

 

2010 string.

 

1) Don has not been here since 2014, with threads that are so old, try this to see if the poster is still active: Left click "TheDon", click "public profile", observe that he last checked in on Janary 1, 2014.
2) The car was not "reading the key panic circuitry", the FOB was sending errant transmissions to the SKREEM, evidence of this was that removing the batteries put a stop to it. You need a new FOB.
3) I don't know what you intended to say in your last sentence.

 

Ray91, may be a longshot but have you inspected the red panic button on the FOB? IF the little red 'pin' behind the panic button is stuck pressing the button on the circuit board, it'll set off the alarm. Anyway, check to see if the little red plastic pin (part of the red panic button on the FOB) is pushed in on the FOB making the alarm sound off. If that was the problem, it would give you some time to find, learn how to, and replace the FOB case. IF you replace the FOB case (easily done with the .pdf located in the document collection, & some patience), make sure you transfer that little black chip located in the FOB case. That 'chip' is necessary for the car to start. IF you lose it, it'll cost you a lot in monies and time because the process for getting a replacement is both time and money intensive for a replacement key, as a key without that chip will not start the car. Good luck!


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I don’t worry about flashing lights unless they are red and blue.

 

The mercedesSwapshop on Instagram can duplicate keys. He’s got the whole setup. Decent price. Turnaround is about 7-10 days

 

If it is a simple jammed switch in the FOB, why replace the whole thing? Also, no matter who provides a service for keys, I am sure it is pretty expensive, right?


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