Vaccum hoses

[e30_kid89]

i think these are the root of my check engine light....when ever i start up theres an irratic idle for a couple of seconds then it is okay....how hard are these to do? how much do all the hoses cost?

lemme kno

and does anybody have diy write up on this? or where i could find one???

devon

[twinpop171]

I just did mine about a month ago. I got them at the stealership for about the same price as BavAuto (~$70). They are not terribly hard to change. The hardest ones to do have an aluminum water pipe running through them which can test your patience. Remove the intake bellows for easier access to them. There are 6 or 7 hoses to replace. For a very good diagram go to www.realoem.com and enter your car's info and search parts. Most of the lines show up under intake system I think and a couple show up under water hoses. This drove me crazy because I couldn't find a pic when trying to order. Good luck and keep us posted, Dan.

[e30_kid89]

hey how would i check if i in fact do have a vaccum leak? where would i need to spray?

[kowalski]

everywhere that could be leaking

[Febi Guibo]

I would (Very carefully I might add) start with a can of carb cleaner on the intake side of the engine.

Just do one hose at a time, and listen to hear if the idle goes up at all when you spray.

Wipe the hose down and do the next one, etc.

[lordschleife]

This is pretty easy, I did it last w/e, got the hoses form the dealers
The hardest part is reattaching the 2 coolant hoses to underneath the throttle body
Heres a diagram
http://homepage.ntlworld.com/opposite-lock/318is-hose-nightmare.jpg
There are 2 different designs around the throttle though, so yours may not look like that, have a look at the other design on realoem.com
The pink arrow goes to the charcoal canister on US cars, its just blanked off with a rubber cap on my UK car

[e30_kid89]

thanks man just the help i was lookin for......im also in the middle of puttin in a new tank so i'll keep ya'll posted!

Devon

[Eurospec]

nm

[e30_kid89]

ok can anybody get me that part # for all the hoses??? cant find em on real oem well i can but they arent too specific...helllp meee

[Eurospec]

They aren't specific? Please elaborate.

[e30_kid89]

^^^post the part numbers for all the different pipes i will need. i just wanna make a nice clean list to give the parts guy so he can get what i need with no confusion or problems if u can do this for me it would be greatly aprriceated....

Devon

[M42boy]

Here's what I came up with. I put it in Excel. The numbers in the far right column are the # in the image in RealOEM. Unfortunately, they are from different pages and don't seem to have a page reference number, which can add to the confusion. Let me know if you find something different. Here's what I cam up with (from RealOEM).

Obviously hose clamps are optional, but actually pretty cheap from the dealer so I got a few there as well.

13 41 1 721 907 Intake Breather Hose (Multi) 15
13 41 1 721 972 Intake Breather Hose 13
13 41 1 721 971 Intake Breather Hose 11
11 41 1 721 909 Intake Breather Hose 16
11 15 1 739 266 Vent Hose (cooling) 17
13 54 1 739 248 Connection Hose 14
11 53 1 714 637 Pipe 26
11 53 1 721 847 Water Hose 16
15-18 Hose Clamp (Qty 10) 19
13 54 1 739 235 Water Hose 13
11 53 1 721 846 Water Hose 11
07 11 9 975 349 Insulating Hose 12
12-15 Hose Clamp (Qty 5) 17
51 73 1 257 971 Vacuum Hose 11

[fitz318is]

nice pic, very helpfull for a bitch of a job.