Replacing vacuum hose for brake booster

[brawnyblue]

I hope someone can help me, I need to replace the vacuum hose for brake booster. I have got the part and want to replace it myself to save some cash.

Here is the guide: http://tis.spaghetticoder.org/s/view.pl?1/08/07/57

Here is layout of the power brake unit depression: http://bmwfans.info/parts/catalog/E85/Roadster/Europe/Z4_3.0i-M54/RHD/N/2003/february/browse/brakes/power_brake_unit_depression/

Here is the part: http://bmwfans.info/parts/catalog/34336763992/



My question: where is this part/the power break unit located and how easily accessible is it?

 

[brawnyblue]

I found the hose, easy enough. It does look like I need two clamps though, BMW only sold and gave me one... I guess I will get a second clamp just in case before removing the part.

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