How to Disable a Car Alarm on a 2003 Mercedes Benz C240

Written by daniel valladares
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The factory-included car alarm on your 2003 Mercedes-Benz C240 is an important theft deterrent for your vehicle. When activated, the alarm will sound the horn and flash the lights of your C240 for two and a half minutes. In the event that you wish to disable the alarm system, you can do so temporarily with the car remote by pressing the "UNLOCK/DISARM" button or you can do it permanently by removing the alarm fuse in the C240's under-hood fuse block.

Skill level:

Things you need

  • Fuse puller

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  1. 1

    Turn off the C240's engine and open the bonnet. The fuse block is situated behind the C240's battery.

  2. 2

    Remove the C240's fuse block cover. On the underside of the fuse block cover is a fuse puller. Remove the fuse puller from the cover.

  3. 3

    Remove the fuse numbered "8" in the fuse block. Use the fuse puller. If you wish to enable the car alarm, plug the fuse back into the "8" slot.

  4. 4

    Place the fuse puller back onto the cover and place the cover back onto the fuse block. Close the bonnet.

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