Dead alarm siren
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Joined: Apr 2013
Posts: 98
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W203 01' C200k
Dead alarm siren
Hello, the problem with the fuse nr. 8 blowing all the time occured to me today, so I traced the problem to the alarm siren behind the front wheel RHS.
I unplugged the plug and it's "fixed" for now.
But in order to get my alarm functioning, is it possible to just replace the battery, or do I have to replace the whole unit?
And does anyone know if you replace the rear sam unit (preface) to an unit from a facelifted W203 model, do you have to reprogram the sam unit in order to get the alarm up running?
I replaced this unit about a year ago to a facelift unit, and had to reprogram the fuel gauge sensor in order for the fuel gauge to read again. But I was wondering if I have to reprogram something about the alarm as well to fix the alarm? Or does it have the exact same address etc. as on the pre-facelift unit?
Thanks in advance.
I unplugged the plug and it's "fixed" for now.
But in order to get my alarm functioning, is it possible to just replace the battery, or do I have to replace the whole unit?
And does anyone know if you replace the rear sam unit (preface) to an unit from a facelifted W203 model, do you have to reprogram the sam unit in order to get the alarm up running?
I replaced this unit about a year ago to a facelift unit, and had to reprogram the fuel gauge sensor in order for the fuel gauge to read again. But I was wondering if I have to reprogram something about the alarm as well to fix the alarm? Or does it have the exact same address etc. as on the pre-facelift unit?
Thanks in advance.
Last edited by Steff95; Aug 18, 2015 at 03:46 PM.
Thread Starter
Member
Joined: Apr 2013
Posts: 98
Likes: 0
W203 01' C200k
Okay, so when I replace my alarm siren it will work again, without recoding the sam? Even if I originally had a prefacelift sam unit, but now use a facelift sam unit?
