There seems to be almost no mention on the interwebs on rebuilding central door lock vacuum pumps e.g. part# 1268000448 (found in the trunk next to spare tire). At + - $250 new a pop, one would expect to see more interest in this.

Can it be done?

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'83 SD, 2x '85 SD
You are entitled to your own opinions, you are not entitled to your own facts.

I have not read of anyone rebuilding one.
Used ones come up on ebay or you could pull one at the Junk Yard.

If you like to mdify stuff there is lots of Ford Vacuum Pumps that are used to operate the accessories and other Vacuum Pumps (more noise) used for Brake Booster Vacuum usally shown on ebay as comming of of SAAB or Volvos.

I suspect that the real Mercedes Vacuum Pump has a Vacuum shutoff Switch on it for when the Vacuum is high. For sure some of the other Vacuum Pumps do not have that switch built into them.

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84 300D, 82 Volvo 244Gl Diesel

I think that that's it - second hand ones seem to be cheap. However, that might not always be the case - be a pioneer - be the first to do a DIY!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!