PANIC BUTTON DOES NOTHING
Thread Starter
Junior Member
Joined: May 2015
Posts: 36
Likes: 1
S500, LEXUS GS 350 FSPORT, LEXUS CT 200H
PANIC BUTTON DOES NOTHING
Hey guys. When i press and hold the panic button it does nothing. No lights no sound nothing. I tried everything locking the car, unlocking but nothing happens. Whats going on with it?
Thread Starter
Junior Member
Joined: May 2015
Posts: 36
Likes: 1
S500, LEXUS GS 350 FSPORT, LEXUS CT 200H
Ok so I determined that the siren is no longer working. I tested it by locking the doors then manually unlocking an individual door. The lights start flashing with no sound. Does anyone know what part needs to be replaced?
Super Member
Joined: Sep 2012
Posts: 690
Likes: 76
From: Montreal, Quebec
2009 E350 4M Avantgarde;mistress 2002 S600; wife 2014 C300 4M
the siren is located in the aft portion of the left front wheel well (you have to remove the inner fender. You can't change the battery, you have to change the whole unit, about $100.00.
I replaced mine, but never got it to work; one hint is that it must be connected while the alarm is off, i.e. car ign. on.
It is also possible that it was "deactivated" by recoding, if the owners didn't like accidental or inadvertent triggering.
I replaced mine, but never got it to work; one hint is that it must be connected while the alarm is off, i.e. car ign. on.
It is also possible that it was "deactivated" by recoding, if the owners didn't like accidental or inadvertent triggering.
Thread Starter
Junior Member
Joined: May 2015
Posts: 36
Likes: 1
S500, LEXUS GS 350 FSPORT, LEXUS CT 200H
the siren is located in the aft portion of the left front wheel well (you have to remove the inner fender. You can't change the battery, you have to change the whole unit, about $100.00.
I replaced mine, but never got it to work; one hint is that it must be connected while the alarm is off, i.e. car ign. on.
It is also possible that it was "deactivated" by recoding, if the owners didn't like accidental or inadvertent triggering.
I replaced mine, but never got it to work; one hint is that it must be connected while the alarm is off, i.e. car ign. on.
It is also possible that it was "deactivated" by recoding, if the owners didn't like accidental or inadvertent triggering.
Thread Starter
Junior Member
Joined: May 2015
Posts: 36
Likes: 1
S500, LEXUS GS 350 FSPORT, LEXUS CT 200H
is this it??
http://www.ebay.com/itm/W215-W220-R230-SL500-CL500-MERCEDES-ALARM-HORN-SIREN-SOUNDER-SPEAKER-BUZZER-/221489988955?hash=item3391d5055b&vxp=mtr
Should I get new? What life do these things have?
http://www.ebay.com/itm/W215-W220-R230-SL500-CL500-MERCEDES-ALARM-HORN-SIREN-SOUNDER-SPEAKER-BUZZER-/221489988955?hash=item3391d5055b&vxp=mtr
Should I get new? What life do these things have?
Super Member
Joined: Sep 2012
Posts: 690
Likes: 76
From: Montreal, Quebec
2009 E350 4M Avantgarde;mistress 2002 S600; wife 2014 C300 4M
looks like it, but I got mine from MB for about $100.00.
there are very specific part numbers, and I have heard some of the non-MB don't have the right connectors, just wires.
there are very specific part numbers, and I have heard some of the non-MB don't have the right connectors, just wires.
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Senior Member
Joined: Dec 2014
Posts: 448
Likes: 3
From: CALIFORNIA, UNITED STATES
2003 S430, 2014 E350
Try to price match with your dealer. Use a reputable site like Autohausaz. One key feature that is missing is a sound when the car locks. You can get an aftermarket version of the siren unit that makes a sound when you lock it.
Don't get a used one. The age of the siren unit is very important, because when the battery explodes it corrodes the circuit board, and the siren doesn't work anymore.
Don't get a used one. The age of the siren unit is very important, because when the battery explodes it corrodes the circuit board, and the siren doesn't work anymore.
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