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bjt42 View Drop Down
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Joined: 12-February-2006
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Direct Link To This Post Topic: Lights dim when secondary air pump activates
    Posted: 18-April-2006 at 07:18
The headlights and dash lights on my 00 316 Compact (E36) dim slightly when the secondary air pump is in operation. When it shuts off, they return to normal brightness. Is this an indication of a battery or alternator on the way out? The magic eye on the battery shows a dim green light.
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Really Senior Member I
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Joined: 02-May-2004
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Direct Link To This Post Posted: 18-April-2006 at 07:21

check the earth lead on the altenator.

on the e30's they always seem to break, and then touch the block, giving this type of issue when you use almost anything, but it doesnt stop working for ages.
Its gonna be finished for summer!!! thats the plan!!!
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