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.

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84 300 Turbo / 320,000
96 E300 D / 55,000

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.

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1987 VW Jetta Mk II - Daily Driver
1992 W201 2.3 - sold
1985 W126 380se - sold
1985 W123 OM617.952 - sold
1981 W123 OM617.912 - sold
1986 W201 2.3 - sold
1979 W123 OM 617.912 - sold

84 300 what? 300D, 300CD, 300TD, 300SD?

Come on Forced, you know all that matters with these cars is that they have a TURBO!!!!!

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

I have replaced the VR when my battery light glows. Two screws, 3 minute job.

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83 SD

84 CD