ALARM NOT WORKING ON 2005 CLK 320
#2
MBworld Guru
Check fuse #8 (panel in the trunk). It controls both the ATA siren and the remote functions of the key fob. If it's blown, and a new fuse also blows, then you likely have a bad ATA siren and will need to replace it. If it's not blown, and remote locking works, then it's just the ATA siren. It's fairly easy to replace - it's behind the passenger front wheel. Just remove the plastic fender shroud for access.
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2005 CLK55, 1969 1/2 Six Pack Super Bee, 2020 Livewire (on order)
Hi,
I just stumbled across this thread. I have a 2005 CLK55 that I purchased a few months ago. From the day I bought the vehicle when I locked the car the alarm would make the weak beep like when the alarm battery is dead. My 2004 C230 had that issue, so I am familiar with the sound. Anyway, I replaced the siren today and went to test with the panic button. It failed no sound. I locked the car and tried to trip the alarm, again nothing. I checked fuse number 8 on the rear SAM, the fuse is good. It still makes the same beep as if the alarm battery is dead. Any other suggestions on where the issue might be.
I know the previous owner removed the original radio and installed a nav unit. Could this cause this issue?
Any suggestions would be appreciated.
I just stumbled across this thread. I have a 2005 CLK55 that I purchased a few months ago. From the day I bought the vehicle when I locked the car the alarm would make the weak beep like when the alarm battery is dead. My 2004 C230 had that issue, so I am familiar with the sound. Anyway, I replaced the siren today and went to test with the panic button. It failed no sound. I locked the car and tried to trip the alarm, again nothing. I checked fuse number 8 on the rear SAM, the fuse is good. It still makes the same beep as if the alarm battery is dead. Any other suggestions on where the issue might be.
I know the previous owner removed the original radio and installed a nav unit. Could this cause this issue?
Any suggestions would be appreciated.
Regards,
Gene
Gene
Last edited by hpuxsux; 02-02-2019 at 07:45 PM. Reason: Missing information
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2005 CLK55, 1969 1/2 Six Pack Super Bee, 2020 Livewire (on order)
Regards,
Gene
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#8
MBworld Guru
There is no single ATA control module. It's a combination of various components. I think the main controller is the rear SAM, but the ATA siren is also involved. If you roll down a window, lock the car with the SmartKey fob, then reach in and open the door, do you also not get any lights flashing? If that does work but the panic button does not, then that would indicate a problem in the antenna receiver for RCL. If opening a door does not trigger the alarm and flashing lights, then I suspect a problem in the SAM, but that would require some hands-on investigation with SDS.
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2005 CLK55, 1969 1/2 Six Pack Super Bee, 2020 Livewire (on order)
There is no single ATA control module. It's a combination of various components. I think the main controller is the rear SAM, but the ATA siren is also involved. If you roll down a window, lock the car with the SmartKey fob, then reach in and open the door, do you also not get any lights flashing? If that does work but the panic button does not, then that would indicate a problem in the antenna receiver for RCL. If opening a door does not trigger the alarm and flashing lights, then I suspect a problem in the SAM, but that would require some hands-on investigation with SDS.
#11
Disconnect faulty alarm solved my problem
Check fuse #8 (panel in the trunk). It controls both the ATA siren and the remote functions of the key fob. If it's blown, and a new fuse also blows, then you likely have a bad ATA siren and will need to replace it. If it's not blown, and remote locking works, then it's just the ATA siren. It's fairly easy to replace - it's behind the passenger front wheel. Just remove the plastic fender shroud for access.