Anyone else had a new Bosch primer pump, the black style, fail right out of the box?

I had to install mine in my driveway this morning at -4 F, car was not getting fuel and when I tried pumping the old one it immediately pumped out diesel.

Put the new one on and after about eight pumps it started to trickle diesel.

March 4 and I am dealing with a cold weather no start. REALLY. Wow.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22

Never had the issue...

Are you just pushing it? or attempting to twist and pump it?

Is there a chance it is leaking from underneath the primer?

There is a crush washer that sits level with the top of the lift pump, many people don't know this and install the new crush washer ontop of the old one...thus causing an air/fuel leak.

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+1 on the crush washer being the problem...

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+2 on the crush washer

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1981 NA 300D 310k miles

The new style pump also does not move as much fuel per-pump motion as the old one does.

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There was a Member about 5 Years ago that installed a defective Bosch Hand Primer; returned it to the same store and got another and that also turned out to be defective.

He returned it to the same Store and got a refund. He went to the same named Store but in a different location and bought yet another Bosch Hand Primer and that one worked OK.

He said he figured the the First Store had a bad Lot of defective Hand Primes and thought that anothe Store would have the good ones.

As the othes said. People often don't remove the Old Crush Washer because it gets stuck in the recess and either try to reuse it or put the New Cruse washer over the old one and screw the Hand Primer onto 2 Washers.

Picking out the Old Crush Washer can sometimes scratch the surface of the Fuel Supply/Lift Pump.
Overtightening the Hand Primer can warp the Body and it might not seal well.

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84 300D, 82 Volvo 244Gl Diesel

Yes, you are all correct that my frozen butt forgot to scrape out the old crush washer...

BUT

The new pump is leaking from the top and piddling down when pushed. The old one was putting out a small gusher, the same way.

Funny you should mention five years ago, Diesel911, guess when it turns out I purchased the primer pump I had in my parts cabinet?

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22

Wow, that stinks. Sorry to hear.

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1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

It is rare, but some do fail fresh from the box.

It is a random Quality Control issue.

I have experienced this QC failure a dozen times in 29 years.

FYI: By comparison from my personal experience the original factory primer design units fail an average 1 of 25 fresh out of the box or within one year.

.

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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

if you're gonna have the car a while and want a little bit of bling down in there, you can opt for the monark stainless steel primer pump. but its more costly than those bosch pumps. i have one and i believe it to be a more robust design.

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1981 NA 300D 310k miles

This car isn't going anywhere soon .

Wow I did not know they metal ones were still made, I can remember discussion of them years ago... there was one on the CD I sold, but it looked prehistoric so I didn't really consider keeping it.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22

Kent sells them for a bit over $30. I have one on my N/A, it replaced the old white plastic one. I liked that it was still "retro" in that you had to screw it open so it matched the function of the old one, with a more robust design.

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1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino

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I don't know if it was mentioned but there is counterfit Bosch Parts out there.

It is a large enough problem that Bosch puts a Holigrapic Sticker even on the Glow Plug Boxes.

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84 300D, 82 Volvo 244Gl Diesel

X2! I bought two "Bosch" primer pumps via ebay a couple of years ago because the price was unbelievably low. But by the time they arrived, I decided they were probably counterfeit. They didn't come in any official packaging with holograms. I have no way to know for sure if they are fake, but if and when I need to replace my old-school white primer pump, I have decided to NOT use these.

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1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).

Hmmmm. No holographic effects anywhere on the box mine came in.

I am not sure when I got it, but I suspect it was part of a big batch of parts I ordered when I bought the TD in 2009. I sort of forgot about it, so when later I actually needed one I bought one locally and this one sat on the shelf. Came across it this summer and threw it into my emergency kit in the trunk.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22