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Old 12-10-2006, 01:35 PM
865sp300e's Avatar
Talent Scout
Join Date: Feb 2005
Location: Yardley, PA
Posts: 318
Lost electrics in '86 300E....

...but thanks to this forum the problem was quickly fixed.

My 1986 300E slowly lost all power while on a interstate at night. First the antilock warning light came on, then the radio lost power, lights began to dim, and eventually the car died.

A search in this forum suggested the voltage regulator and after following the diagnostics it was confirmed to be the culprit. The local auto parts store had the part ($35) and it took me about five minutes to replace.

The pictures indicate the worn brushes, only one of them was making contact.

Thanks to expertise in this forum for a fast, easy, and inexpensive repair.
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Lost electrics in '86 300E....-voltage-regulator-1.jpg   Lost electrics in '86 300E....-voltage-regulator-2.jpg   Lost electrics in '86 300E....-f401039368bos.jpg  
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Old 12-10-2006, 01:44 PM
fpharryc's Avatar
Registered User
Join Date: Sep 2003
Posts: 105
Car parts are costing too much these days. Regulator used to be around $15 2 years ago. I am wondering if it is made of petroleum.
90 300CE
85 500SEL
84 380SE
83 240D

and ......

90 LS400 x 2
94 Land Cruiser
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Old 12-10-2006, 06:55 PM
Registered User
Join Date: Oct 2004
Location: Baton Rouge La
Posts: 2,621
i think i just paid about 25 dollars... that was on line..seems like it was 18-19 about a year ago..
1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride)

1994 e320 Cabriolet 98k (finally)

1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it

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