Ahhhh!
while trying to CAREFULLY check all my vacuum connectors today, I broke a tube off at the first nipple off the vacuum line to the brake booster.

Am I dead in the water until I get a new main line from PeachParts? Or does anyone have a way I could drive it in the meantime??

Car is the 1985 300TD

Thanks, John

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1981 300TD
1985 300TD

The previous owner of my 300D did this and the temporary solution was to get a larger diameter vacuum hose to slip around that 1-2mm of lip where the port flares out before the barbed part of the vacuum line. If you still have this, you should be able to get by for quite a while. For some insurance, you can rubber cement or silicone the outside to ensure the new hose stays on. This lasted me a few thousand miles.

You can get the main vac line from a junkyard if you bring along a mityvac and can ensure it holds vacuum. No need to pay so much on just a hard plastic hose. I paid less than $8 for mine.

Phil Forrest

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1972 220D "Trudy," named by a friend.

"The 220D sounds good... I suspect it is the only car that you need a calendar for, rather than a stopwatch, when doing acceleration tests."
Tom Abrahamsson

Thanks for the speedy reply. I will try the patch until I can find a replacement.
Unfortunately there are not many yards with these old beasts up here in New England, but I will put a request on the used parts page.

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1981 300TD
1985 300TD

Surely some of the guys in the ChowdaQ thread could point you in the right direction.
I'm heading to the junkyard in a few (I'm in New Mexico right now) and I'd pull you one but the shipping would be 5x as much as the part.
Good luck!

Phil Forrest

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1972 220D "Trudy," named by a friend.

"The 220D sounds good... I suspect it is the only car that you need a calendar for, rather than a stopwatch, when doing acceleration tests."
Tom Abrahamsson

You should be able to drive it, you'll just have to shut it off manually, and most of the vacuum stuff won't work.

Actually, the yards here are just plain devoid of W123s.

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

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."

Picture doesn't work...but when I did this....I simply wrapped the broken nipple part with electrical tape and spliced what ever ran off it to the other nipple worked great for a long time...

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Thanks for the help. Still haven't figured out the picture link for the long term.
Looks like I can repair it until I find one to replace.
Jooseppi is right. Yards up here have nodda for old mercedes. I need to travel more.

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1981 300TD
1985 300TD

Electrical tape to cover the broken port, and add a tee to the other line.

Long term-silicone a larger hose like Phil said

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment

Used? It's $30 for a new MB part.

Sixto
87 300D

I forget what that first nipple supplies vacuum to, but if it's something non-essential, you can just duct tape it while you wait for the replacement part to show up.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.