My OEM Siren Batteries Replacement Issue
My OEM Siren Batteries Replacement Issue
Joined: Jun 2018
Posts: 134
Likes: 0
From: Beaver, PA
Re: My OEM Siren Batteries Replacement Issue
GraphiteGhost,
I agree with the other comments. The circuit board is toast. The circuit board is a multi-layer board. Without a good board to check your board against there is no way of knowing if circuit runs on either side of the board or circuit runs inside the board are good. There is a very good possibility that some circuit runs are completely gone. Throw it away and purchase a new siren. Keep the new batteries, maybe someone can use them.
I agree with the other comments. The circuit board is toast. The circuit board is a multi-layer board. Without a good board to check your board against there is no way of knowing if circuit runs on either side of the board or circuit runs inside the board are good. There is a very good possibility that some circuit runs are completely gone. Throw it away and purchase a new siren. Keep the new batteries, maybe someone can use them.
Joined: Jun 2018
Posts: 134
Likes: 0
From: Beaver, PA
Re: My OEM Siren Batteries Replacement Issue
GraphiteGhost,
Another comment: Those areas on the circuit board that had gotten hot and look black are another issue. The circuit board is made so that there is no conductivity between circuit runs. Conductivity is through the components mounted on the circuit board. Now the circuit board has burned areas which are basically carbon and carbon, like a resistor, conducts electricity. There really isn't anyway to fix this circuit board.
Another comment: Those areas on the circuit board that had gotten hot and look black are another issue. The circuit board is made so that there is no conductivity between circuit runs. Conductivity is through the components mounted on the circuit board. Now the circuit board has burned areas which are basically carbon and carbon, like a resistor, conducts electricity. There really isn't anyway to fix this circuit board.
Senior Member
Joined: Jun 2012
Posts: 2,875
Likes: 32
From: Key Largo FL . . . The fabulous Florida Keys
Re: My OEM Siren Batteries Replacement Issue
Sorry but I agree with others that responded. You're wasting your time . . . Buy a new alarm siren . . . You want this part number . . . 2198203226 . . . The new unit will also provide audible "chirps" when you lock and unlock your Crossfire.
Look here: https://www.ebay.com/itm/Mercedes-Be...72.m2749.l2649
Look here: https://www.ebay.com/itm/Mercedes-Be...72.m2749.l2649
Senior Member
Joined: Nov 2008
Posts: 8,487
Likes: 853
From: Upstate SC
Re: My OEM Siren Batteries Replacement Issue
Sorry but I agree with others that responded. You're wasting your time . . . Buy a new alarm siren . . . You want this part number . . . 2198203226 . . . The new unit will also provide audible "chirps" when you lock and unlock your Crossfire.
Look here: https://www.ebay.com/itm/Mercedes-Be...72.m2749.l2649
Look here: https://www.ebay.com/itm/Mercedes-Be...72.m2749.l2649
Dennis E.
Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 648
From: Ontario
Re: My OEM Siren Batteries Replacement Issue
There are at least two sirens that chirp you can use, one with a stud as shown in the eBay thread and one that uses a bolt. CLICK
Last edited by onehundred80; Apr 28, 2024 at 06:35 PM.
Thread Starter
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Senior Member
Joined: Jul 2009
Posts: 6,355
Likes: 792
From: Central South Carolina
Re: My OEM Siren Batteries Replacement Issue
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Last edited by GraphiteGhost; Oct 6, 2021 at 06:51 PM. Reason: Added information about the battery lifespan
