Keyfob won't lock or unlock car

[Cj83]

Hi. Got a Mercedes clk320 2006 Both my key fobs have stopped working they won't lock or unlock the car I have checked batteries and they are fine also put the key fob against camera and it lights up checked fuses and all ok can anyone help please.

 

[grahamcol]

All l can think of right now is that maybe keys need to be resynced to the car. Strange that both have played up though. I guess the procedure will be in the manual. If u don't have a manual post on here and I'll have a look in my CLK manual.

 

[M80]

Is the car battery healthy?

 

[Cj83]

Is the car battery healthy?

Yes the battery is fine.

 

[Cj83]

All l can think of right now is that maybe keys need to be resynced to the car. Strange that both have played up though. I guess the procedure will be in the manual. If u don't have a manual post on here and I'll have a look in my CLK manual.

I have resynced both keys to check if it was that.

 

[Cj83]

Does anyone know where the alarm siren is on these cars as I can't find it, I have just bought this car and now wondering if the problem was there before I bought it and they have removed the siren. Thanks

 

[M80]

I would look inside the o/s/f wheel liner first, I 'think' that is a common place.
If missing you will find a 3 'female' pin socket. That wouldn't affect the keys working though.
Mine was missing when I got it. Only small issue is that it needs to be locked twice to stop it flashing continually, but i think that's another issue anyway.

 

[Cj83]

I would look inside the o/s/f wheel liner first, I 'think' that is a common place.
If missing you will find a 3 'female' pin socket. That wouldn't affect the keys working though.
Mine was missing when I got it. Only small issue is that it needs to be locked twice to stop it flashing continually, but i think that's another issue anyway.

I have looked there can't see nothing or any wires/connectors the only thing there is the water fluid bottle for wipers and yeah I know it wouldn't stop the car locking but just wondering why they is no siren going of when lights are flashing. Thanks

 

[Cj83]

Update still can't see the siren so guessing it's been took of by a previous owner and still can't lock car with fob.