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Old 02-09-2003, 09:44 PM
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1993 300te 4matic electrical problems

recent repair for central lock vacuum,power antenna and int. dome lights causing draw on battery. no start. 1st drive out from repair at dealer and dash lights started coming on, lights dimmed and car lost power (electrical). dead on road and towed back to dealer. awaiting "new" diagnosis. ideas? shorting? incidently, drivers power seat not working off dealer repair. advice?

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Old 02-09-2003, 10:17 PM
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Join Date: Apr 2002
Posts: 139
they ussually give those type jobs to the low man on the pole at the dealer. you will now be upgraded to a better tech and let them fix the prior repair for nada. if they can't or won't, try a different dealer. just sounds like a possible loose ground. the warning lights came on or the dash/instument light came on? edit...dash lights you might be alt bait.

interior light shorts are the door switches ,shorts running up the a pillar and possible time delay relay.

door lock problems are tedious to diagnose, but there is a logical sequence.

power antenas sometimes just have a mind of their own.

you might have killed the battery if it has discharged completely numeruos times. electrolyt level okay?

Last edited by tryan; 02-09-2003 at 11:49 PM.
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Old 02-10-2003, 05:09 AM
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battery is new; changed at this last service. door locks work now- albeit with slow air movement (par for the course), interior dome light, with delay, works well too. power antenna seems to work ok,too. again, car returned with driver's power seat not working. i'm covered for an altenator if needed. shop foreman worked on car at freehold mb dealer due to age of car. regards, rw
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Old 02-11-2003, 07:50 PM
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diagnosis in

alternator shot, driver's power seat module to replaced also (this was not causing a draw or causing the alternator difficulty- per mb shop foreman). other minor repairs to be done at this service, as well as a scheduled major servicing. fuses to be replaced per friendly recommendations (thnx, danny). valve cover gasket leaking too. this wont be cheap - still seems odd that this would happen right out of the shop for other electrical repairs. insights? suggestions?

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