im guessing this is an alternator on the way out... but is there any other reason why my instrument panel lights (everything) is pulsing like its dancing to an unheard beat?
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instrument lights are PULSING!
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Originally posted by Stevie30 View PostMy lights have been pulsating for 12,000 miles. I've been expecting the alternator to go but it keeps hanging on.
Im afraid the regulator will fail and I'll fry the whole car...
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Originally posted by ETeurowerks View PostDiodes have gone bad. Usually all the lights will pulse getting more intense as RPM's come up.
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Originally posted by robspeed325i View PostHeh, so i just need a regulator? Excellence! On the other hand, alternator prolly has 147K on it, better to just replace whole thing?
You need the whole alternator...
The diode bridge is not part of the voltage regulator.
I wouldn't recommend a cheap re-build, I only use Bosch re-mans at the shop.
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Originally posted by Nick325is View PostCould just be the voltage regulator on the back of the alternator. Mine did this and the regulator was the issue.
-Nick
-CharlieSwing wild, brake later, don't apologize.'89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.FYYFF
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Originally posted by Charlie View Post+2, it sounds like a voltage regulator. That's a 10 dollar part vs a 115 dollar one.
-Charlie
the regulator keeps the voltage from surging past 14.4. if it was the regulator, id be seeing the lights going SUPER BRIGHT then dying back down. instead i am seeing them at normal brightess, and then dying (as DC voltage is sucked down by AC wave), then back to normal again and again...
p.s. the regulator is a $30 part.
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