Hello all,

After reading that very informed thread about disabling the TPMS, I'm dying to know if there is a way to disable the alarm system. The fact is, I'm tired of wondering when my alarm is going to start screaming in public again because of some seemingly unrelated little problem. Is it possible to disconnect the siren without disabling other things...? Or, because it's part of a SECURITY system, is there no way to effectively isolate the sound without other casualties? Honestly, I find the stress of worrying about the alarm is not worth the minor security the sound itself actually adds in a rural setting where no one takes car alarms seriously. Maybe whatever makes the sound can be removed from the module without penalty? I know that disabling is probably unlikely, but I have to ask. Like I said, the actual SOUND of the alarm is not worth much to me. I've been driving around minus #9 fuse for no reason other than a little paranoia. Tired of not being able to lock my car properly (hatch can't lock manually) and not having overhead lights. Thanks so much for considering this question!

Ragnarok

 

If I remember correctly the siren has a off/on switch that has to be disabled through the cars software. You need access to Mercedes software through a interface.

 

Really? You wouldn't be able to post a detailed review of how this could be accomplished, would you? Would I take my car to a Mercedes dealership for this?

Ragnarok

 

You can check the link below,
The actual siren portion of the system is in the front cowl.
In post 12 typhoon said removing just that made the system work minus audible alarm.

https://www.crossfireforum.org/forum...gone-wild.html

 

Ragnarok the following is from an old post of mine. You will need to go to the dealer or Mercedes independent. I own other real Mercedes and my dealership was very nice and informed me they only work on cars with a star.

Here is the info

Well I am on my fourth dealer to get the panic button to work. Before I finish the story let me give you some other info which may help others with future problems. First I am NOT the orginal owner of this car. I bought it with 7000 miles on it and was the third owner. It was a certified used car and it has the remainder of the 3/36000 and a new life time waranty on the power train which I purchased from Chrysler. I tested the panic button after reading on the Forum that people were having problems with the sirens. If I had not read that here I would never had pushed the panic button in a million years. I also have a 7/100000 extended warranty on it. Doing research I found out the panic button was a problem on the car at about 3000 miles. It was supposely fixed or my best guess is the then owner gave up. Who in their right mind would spend 4 months trying to get something as insignificant fixed. Someone asked about a lemon law, it MUST be a critical element that effects the car or you do have standing under the law. Well that said, I took the car back to where I purchased it because someone told me they were great on Xfires and I had exhausted all the dealers within 2 hours of my house. By the way if you live in the Phoenix area if you ever have a problem go to Airpark Chrysler in Scottsdale and see Maureen Working and/or Brian Reich. I visited with them last week while I was getting my Mercedes serviced near them. They worked on the car for two hours yesterday and then gave me FREE a rental so I could drive home 3 hours. They called me at 4 PM yesterday and told me the car was fixed. I picked it up today and I am passing on exactly what was on my work order. I suggest you file this somewhere if you ever have a need to reprogram any electrical module in the Xfire. It is a gift you will not find in any service manual. I believe this will work on any of the modules. Things are supposed to work automatically but remember Murphy's law or the Law of Unintended Consequences.

PANIC BUTTON INOP. CUSTOMER THINKS COUNTRY CODES ARE IN ERROR. TESTED 3 OWNER SUPPLIED REMOTES. ALL CHECKED OUT. SET ALARM AND OPEN DOOR FROM THE INSIDE TO VERIFY THE ALARM SIREN IS HOOKED UP AND OPERATIONAL. FOUND ON LINE CASE KO03559811. FOUND PANIC ALARM ENABLED IN THE SKREEM MODULE. DISABLED AND REENABLED ALARM, STILL INOP. ALL SETTINGS IN SKREEM, BCM AND CLP SHOW PANIC ALARM ALLOWED. CONTACT TECH REP SCOTT MILLER AND ADVISED TO RESET COUNTRY CODES IN ALL MODULES FROM USA AND THEN BACK TO USA. STILL INOP. CONTACT STAR AND ADVISED TO USE DRB SCAN TOOL INSTEAD OF STAR SCAN AND BE SURE THAT PANIC ALARM IS AUTHORIZED IN VEHICLE THEFT ALARM. BLOCKED SETTINGS AND REAUTHORIZED, ALARM STILL INOP. CHANGED ALL VEHICLE SETTING UNDER MODULE SERVICE REPLACEMENT FOR BCM, SKREEM, AND CLP AND THEN REPROGRAMED VEHICLE BACK TO VEHICLE CONFIGURATION. AFTER RESETTING THE CENTRAL LOCKING PUMP PROGRAM, PANIC ALARM IS OPERATIONAL.


Hope this helps.

 

Thank you, guys for your quick and specific responses. I'll see what I can do about dumping the siren.

Ragnarok