I tried to do a search but the search engine on this site couldn't be any farther from google. "off" is to short a word so the search is useless.
Anyway I've got a 240D that won't shut down. All that vac lines look good and the car is running fine. Are there any common places to look first? Thanks.

Yep. I knocked a line loose when changing oil. The rubber hose came of the shutoff valve at the back of the injector pump. I also discover the PO had disconnected the central locking system and plugged the vacuum hose. I unplugged it and reconnected the central locking system. The locking system worked, but guess what! It wouldn't shut off. I disconnected and replugged and it shut off just fine. Therwe must be a leak in the locking system somewhere. So look for a disconnected hose or a leak.

What you want to search for is "vacuum shutoff."

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

hello, i just registered here, the same thing happened to me a few years ago, assuming that all your vacuum hoses are connected you may have a blockage somewhere between your ignition and the injector pump, i pulled out the hose connected to the shut-off valve and gave it a good suck and have not had a problem since. hope this helps.