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Voltage Regulator Replacement? 300

posted by  someone claiming to be 1990 760GLE Owner on  Mon Nov 11 04:54 CST 2002 [RELATED]

Hi,

Could someone tell me if I would need to remove the alternator in order to replace a bad Voltage Regulator? Is it accessible from the bottom of the car?

Thanks.








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Voltage Regulator Replacement? 300

posted by  B.C. on  Mon Nov 11 15:41 CST 2002
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last visit: Wed Mar 28 22:28 CST 2012
[RELATED]

The voltage regulator is integral with the brush holder. Two bolts and it's out. Once it's out, look iside there to check the conditoni of the slip rings. Also, get an idea of the manipulation needed to install the new ones.

Usually the brushes are way worn down after 100K miles or so. Worn to less than 5mm is too short.

Never have I had a voltage regulator actually fail. Short brushes can cause low charge, arcing on the slip rings, and maybe contribute to a diode failure.

Post back with what you find.

Good Luck,

Bob

:>)








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Voltage Regulator Replacement? 700

posted by  Aye Roll on  Mon Nov 11 05:22 CST 2002
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last visit: Tue Oct 14 21:08 CST 2014
[RELATED]

No, you can replace them in the car, if you can get sufficient access to the back of the alternator. Disconnect your battery cables first.
On the 7 series, the alternator is up top on the left side of the engine. Pretty easy to get at, really.
--
Rob Bareiss, New London CT ::: 86 244DL, 87 244DL, 88 744GLE: 625K total







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