vacuum loss from hole?

[wingman]

Should there be a hole here? It's a 't' piece attached to the brake booster. It would appear to be correct.

[Jeff N.]

Hmmm. Looks suspicious. That exact part is not on a 535i. However, there's a similar little take-off on the booster check valve on the 535 and it should be blocked.

[Jon K]

Plug it with your finger see if its pulling vacuum

[wingman]

Plug it with your finger see if its pulling vacuum

Sure is! This is why it confuses me. I understand that it should be sealed although the piece looks like it was built with the hole. I don't want to seal it up if it was mean't to be there.

[wingman]

bump

[rob101]

plug it and see what happens, do you have a realoem diagram, i might check my 525i to see whether i have a similar bit

[DaveVoorhis]

On my 525iA, at that point there's a nipple for a vacuum hose that runs to the interior through a hole in the firewall beside the heater pipes. It's used to draw interior air over the temperature sensors in the footwells. It looks like yours is broken off.

[wingman]

On my 525iA, at that point there's a nipple for a vacuum hose that runs to the interior through a hole in the firewall beside the heater pipes. It's used to draw interior air over the temperature sensors in the footwells. It looks like yours is broken off.

Have you got any pics?

[wingman]

It looks like there should be an extra piece that attaches where the whole is but where are all the hoses gone? I can't understand why a car that has been dealer/specialist serviced all its life would have a whole section of plumbing removed.

http://www.realoem.com/bmw/showparts...61&hg=11&fg=45

[wingman]

Disregard, I'm an idiot. It's still there I was looking at the pic the wrong way.