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1995 Mercedes-Benz C280 Question: when i turn on headlight switch it causes instrument cluster lights to flash.

 

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19armando56, Glendale, CA, July 11, 2012, 07:04
 Rookie

also makes digital clock goe to 1:00,then gauges (fuel,temp.,rpm,and speedometer)wont work,then after a while they work.But every time light switch is turned on it happens.I replaced light switch, and installed a used cluster w/new bulbs, same problem?Its driving me bananas,please can anyone help me.everytime i fix something, something else goes wrong.have had car 3yrs,never ending project.I thought mercedes were great cars,should have bought a freeking chevy!

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  • Answer #1

    pushrod July 11, 2012, 17:29
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     Master

    Find and repair loose dash ground circuit. And you are right about the Chevy.

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    19armando56, July 12, 2012, 23:24
     Rookie

    are the cluster and light switch grounded behind cluster?

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    pushrod, July 12, 2012, 23:58
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     Master

    Well since i am a night owl i'll explain. I had the same thing on a chevy S10 and the dash ground wire for the dash was loose.After finding
    a schematic diagram and locating this wire, tightened it and problem solved.
    Key SCHEMATIC DIAGRAM! Wish i could tell you where to look but i don't know where the ground is.
    Good luck.
    Ps the chevy was doing exactly the same thing. So i figure if it worked on it it should work for you.
    The ground circuit is the most overlooked item for a problem.

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