The dashboard display is back up in my 1995 280, but lo and behold the car beeps as soon as I start traveling over 5 mph. as soon as I slow down or stop the sounds is gone. It is a high pitched, pulsing beep that seems to reach into my brain and try and rip it out through my ears.

My car will do that only if you don't fasten your seatbelt.

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2007 C 230 Sport.

Unfortunately that is not the case on this car. I wish it was that simple.

Check the emergency brake, if the peddle is pushed a little down you will get that beep when you drive and it will stop when you stop.

Good suggestion, but still beeping.

When you step on the e-brake does the brake light come up on the dash???

Yes. I have since taken out Fuse #10, which controls the dashboard instrument panel, and the beeping has stopped. Unfortunately so has the rest of the dashboard panel.

My 94 c280 started that blasted beeping and it turned out to be the brake fluid sensor.