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sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 22690
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Have a c280 1999 Mercedes. When I turn the ignition the

Customer Question

Have a c280 1999 Mercedes. When I turn the ignition the alarm goes off. How do I stop this?
Submitted: 1 year ago.
Category: Mercedes
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

If you have only factory security then it should disarm when pressing the unlock button on the key fob or when attempting to start the engine with a valid key.

Do you have an aftermarket alarm or just the factory systems?

I'm assuming you've pressed the unlock button on the fob? If so did the doors unlock?

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