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#1
09-24-2012, 11:47 AM
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Vacuum pump infant mortality -- experience?
I just installed a new Pierburg-branded, Mercedes logo'd diesel vacuum pump (000 230 31 65) in my '96 E300. This was done purely as a precaution. The old pump appears clean and undamaged inside and is the "new" style with the enclosed bearing and four screws on the cover. However, it is the original on this car and has 286,000 miles on it. The new pump was made earlier this year in Germany and carries a 2012 date code stamp. Has anyone experienced an immediate failure of such a new vacuum pump?
Jeremy
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 "Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 
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#2
09-24-2012, 12:27 PM
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several have failed, apparently the pivot arm snapps after a while. so inspection is still important on the pump.
it's cool that your old pump had the enclosed bearings, so I doubt it's original. hold onto it for a spare, or clean it up and sell it here used. I'm fairly certain anybody looking to replace their open design would buy your closed design for a few bucks!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
09-24-2012, 01:33 PM
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Original?
Quote:
Good advice, I think I'll sell one and keep one for a spare. Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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#4
09-24-2012, 09:00 PM
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Quote:
It had to be after mid calendar-year 1992 as my model year 93 300D 2.5T (built is July 92) did NOT have the enclosed bearings - and it failed about a year ago at around 130K and dumped it's guts into my timing chain and oil pan. 
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