voltage regulator - MBWorld.org Forums

Jul 17, 2010 | 07:30 PM

morris374

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Joined: Mar 2008

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1991 420SEL & 300E, 2003 BMW X5, 2001 740iL all on DUBS

voltage regulator

does anyone know where the voltage regulator is located? when my car is off voltage across battery is 12V but when on voltage is in 14v range so i need to replace the regulator if i can find it

thanks guys

Jul 17, 2010 | 08:29 PM

pifcat2

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Joined: Nov 2002

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From: San Jose

300TE / 300E / 300CE

It's in your alternator, remove 2 screws and pull it out. Look for wear of the brushes...

Jul 19, 2010 | 10:19 AM

kafklatsch

Senior Member

Joined: Dec 2006

Posts: 437

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All Cars Lost To Hurricane Isaac (W124 E420 revived - added 88 Allante 14 S550, 17 S63

What numbers are you expecting? 14 volts running, and 12volts on the battery when your car is off is acceptable. The rest voltage in your battery deteriorates as the battery ages. 12 volts indicates an aging BUT still good battery, and in no way indicates a bad regulator. If while runing under load, you have high 13's to low 14's, your alternator and regulator are o.k. as far as the volts are concerned.

Quote:

Originally Posted by morris374

does anyone know where the voltage regulator is located? when my car is off voltage across battery is 12V but when on voltage is in 14v range so i need to replace the regulator if i can find it

thanks guys

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