| MayanArch |
Posted
Sunday, Jul 6th 9:14pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 1588
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978 |
My friend's E21 has a weird problem. There is a visible electrical drop when presses the brake pedal. You hear the gas pump go slower and the lights dim. The batt light comes on.
To my knowledge, the brakes have nothing to do with the electrical......so what could this be? |
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| KenDanielson |
Posted
Sunday, Jul 6th 11:35pm [Edit] [Quote] [IMS] [View car] |
Junior Member
Post nr. 192
Petaluma CA
'82 320is, '78 320i |
The brakes DO have something to do with the electrical system, the brake light circuit. I would check there first.
Fuse to switch to lamps to ground, check it all.
ken |
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| aussie323i |
Posted
Saturday, Jul 12th 10:41am [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 613
australia
1979 323i |
Also happens when the battery gets low - that brake light circuit seems to draw a fair bit of current.
Also check for shorts in the instrument cluster - I've had problems in this area causing similar symptoms. |
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| imaradiostar |
Posted
Monday, Jul 21st 10:02am [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 1095
Nashville, TN
81 323i, 82 525i, 85 524td, 90 535i |
brakes draw around 40 watts...not too much really.
I would suspect ground and other electrical connections. The single M5 bolt that carries the positive current in the fuse box can be problematic as well- I've seen them melt from the current and heat.
jamie |
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