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Old 09-15-2008, 02:22 PM
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Join Date: Feb 2005
Location: Denison, Texas
Posts: 290
84 300 turbo diesel

Has anybody replaced just the voltage regulator assembly on the alternator my lights will dim and later will get bright again also the blower motor will decrease speed and speed up and now my battery is dead.

84 300 Turbo / 320,000
96 E300 D / 55,000
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Old 09-16-2008, 07:02 PM
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Join Date: Oct 2007
Location: Brampton, Ontario. Canada
Posts: 135
Such an easy fix. You may have a cover on the back of the alternator. Remove the cover. The voltage regulator is attached by a couple of screws. unscrew, remove old regulator, install new regulator, re-install screws. You're done.
1987 VW Jetta Mk II - Daily Driver
1992 W201 2.3 - sold
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Old 09-17-2008, 03:34 AM
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84 300 what? 300D, 300CD, 300TD, 300SD?
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Old 09-17-2008, 03:38 AM
JimmyL's Avatar
Rogue T Intolerant!!!
Join Date: May 2004
Location: Sunnyvale, Texas (DFW)
Posts: 9,673
Originally Posted by ForcedInduction View Post
84 300 what? 300D, 300CD, 300TD, 300SD?
Come on Forced, you know all that matters with these cars is that they have a TURBO!!!!!
Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
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Old 09-17-2008, 07:07 AM
toomany MBZ's Avatar
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Join Date: Nov 2006
Location: central Va
Posts: 7,820
I have replaced the VR when my battery light glows. Two screws, 3 minute job.

83 SD

84 CD
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