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Old 12-26-2001, 12:43 PM
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Join Date: Feb 2001
Location: Chattanooga, TN
Posts: 146
E500 Electrical Problem

Hi all - here is a strange one.

Last week, stepped on brake pedal and idiot light indicating outside lamp failure came on. I positioned the car so that I could see the reflection in the glass windows of a commercial building - no lighting problem noticed. Turned off car at shopping center. When I returned and re-started no idiot light for light failure.

Today, started car, placed foot on brake before (planning) to engage reverse, had a spectacular light show. All of the back lights in my switches began flashing on and off. Released brake, pressed again - same show. On the third effort, no show.

Any thoughts on yet another 124 electrical mystery?

94 E500 (Silver/Black)
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Old 12-26-2001, 12:55 PM
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Join Date: Oct 1999
Posts: 1,562
Hi Steve-

winter often drains batteries- and a weak battery can be a cause for your light show...

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Old 12-26-2001, 01:08 PM
Posts: n/a
I have had a similar excerience but cannot offer any help in resolving yours. The Bulb Out light in the instrument cluster will indicate a faulty bulb when there is none. Usually when I restart the car the problem with the seems to vanish??

It has only happened 3 times in the last year that I have owned the car, could I have corrotion building up in a socket, could this be related to mbsteve's issue?
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Old 12-26-2001, 08:27 PM
JimF's Avatar
'94 S500: only 793 sold!
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,924
check the trunk license plate lights (LPL)!

Same thing happend to me and after searching, I could not find any lights that were out. But I forgot about the LPL.

Sure enough one was out and it turned out to be a pinched wire (that broke) going thru the rear trunk lever.

Re the 'light show', don't know what that is!
Regards . . . . JimF
'94 S500 Cpe

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Old 12-26-2001, 09:51 PM
Posts: n/a
Will check, thanks Jim.
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Old 12-27-2001, 09:59 AM
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Join Date: Feb 2001
Location: Chattanooga, TN
Posts: 146

Thanks for the LPL suggestion - but this is ok as well. I once had the light in the trunk fail to shut off - cost me two batteries before that was uncovered!


It did it again last night (idiot light that is) without the light show. Turned motor off and it cleared - might have something to do with this cold weather.

At this point in time I guess this falls into one of those "have to live with it" problems. Thanks for everyone's thoughts - sure would be nice to understand this and attempt a fix.......
94 E500 (Silver/Black)
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