Instrument cluster lamp replacement doesn't work - Mercedes-Benz Forum

 
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post #1 of 3 (permalink) Old 02-27-2007, 04:59 PM Thread Starter
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Unhappy Instrument cluster lamp replacement doesn't work

Please help!
I've a 1997 E320, and I need to replace 2 lamps in the instrument panel. After repelling offers from the dealer to do it for me, they finally succumbed to selling me the bulbs so I could do it myself.
I got the cluster out without difficulty, and easily located the bulbs. I replaced one, switched on the lights, and it worked great. But the second one, an identical bulb in another spot on the cluster, simply won't work. I did all the obvious - made sure the replacement bulb was actually working OK, and still nothing.

Please help - what could be wrong do you think?
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post #2 of 3 (permalink) Old 02-27-2007, 07:57 PM
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Hi, SC, and welcome to the forum.

There's really only three possibilities, either the socket is bad (if this is one of the insert-and-twist-in-type it's an easy and cheap fix), the contact surfaces for the socket on the cluster are corroded (perhaps easy and cheap, depending...), or there's a break in the circuit board that feeds the contact surfaces (neither easy nor cheap). I'd probably start by checking for current flow at the contact surfaces, if you find it you're 90% there.

(and kudos to you for successfully repelling the monster.)

Good luck and enjoy the ride,
Greg

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
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post #3 of 3 (permalink) Old 02-27-2007, 09:32 PM
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It is advisable to replace all the bulbs while you have it apart. It'll save you alot of frustration if a couple more decide to go in a week or two!
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