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grounch

03-11-2023 05:53 AM

Where is that line going?

Hi
I was replacing my vacuum lines and couldn't do one because i had no idea of where the other end is plugged.
Here is 2 illustrations that should be self explanatory.
Goes somewhere under the engine.

https://i.ibb.co/93dV6fT/IMG-20230311-103624.jpg https://i.ibb.co/ygDZq4B/Screenshot-20230311-103958.jpg

Clavurion

03-11-2023 07:06 AM

That vacuum line goes to engine mounts. That hard line is attached on the front subframe.

https://www.realoem.com/bmw/enUS/sho...diagId=22_0076

X5chemist

03-11-2023 08:59 AM

Ok, what do they do?

SirHiss

03-11-2023 09:45 AM

Active noise dampening.

Clavurion

03-11-2023 10:55 AM

Quote:

Originally Posted by X5chemist (Post 1228256)

Ok, what do they do?

On low engine speed they activate to be softer to prevent engine resonances on body.

https://www.pss-autosoft.net/diagram...702FB67003.htm

grounch

03-11-2023 05:00 PM

Interesting, I wonder how it really works, wasn't imagining engine mounts to be an interactive part

Clavurion

03-11-2023 05:32 PM

Quote:

Originally Posted by grounch (Post 1228263)

Interesting, I wonder how it really works, wasn't imagining engine mounts to be an interactive part

X5chemist

03-11-2023 06:17 PM

Which models had them? I know mine doesn't. The recent mount replacements just bolted on.

Clavurion

03-11-2023 06:35 PM

Quote:

Originally Posted by X5chemist (Post 1228265)

Which models had them? I know mine doesn't. The recent mount replacements just bolted on.

Only 6 cylinder diesel engines.

grounch

03-12-2023 06:54 AM

Good to know, thanks for the knowledge sharing. Quite an advanced tech for a 17 years old car.

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