I replaced the car alarm siren (aka cricket on crack). I bought a new Mercedes-Benz Siren 219-820-32-26 on ebay for $138.16. I also bought several tools I needed off Amazon, 6 star security torque bit set, battery post/windshield wiper puller, socket set. Anyways, followed other instructions onsite 1) tape windshield along wiper blade to mark placement, 2) remove cap and bolt holding wiper arm, 3) using puller remove arm, 4) remove approximately 6-8 security screws, 5) clip plastic ties holding wiring and slide clip down off plastic cowl, 6) lift up cowl to access siren, 7) disconnect wire (windshield fluid heater?) and prop cover up, 8) remove bolt holding bracket and siren, 9) unplug wire and remove siren from bracket, 10) reinstall new siren and use a 8M locking nut on post 11) reinstall in reverse order (need 2 plastic zip ties).

Alarm now chirps twice when locked and once when unlocked.




Old vs new with post



New with 8M locking nut