Z3 2.8 Expansion tank hose to engine block - Bimmerfest - BMW Forums

Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36/7 Z3 (1996-2002)

E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

Thread Tools Display Modes
Old 09-11-2012, 12:47 PM
Fred Parmenter Fred Parmenter is offline
Registered User
Location: Medfield, MA
Join Date: Feb 2011
Posts: 34
Mein Auto: Z3 Black 2.8 2000 Roadstr
Z3 2.8 Expansion tank hose to engine block

I have a 2000 (production date 6/1999) Z3 2.8 roadster. I am trying to get the part number for the hose between the expansion tank and the engine block. The expansion tank looks like:

Click image for larger version

Name:	IMG_2743.jpg
Views:	105
Size:	103.6 KB
ID:	341432

I am looking for the hose which connects on the left side. If you look at a parts diagram for this expansion tank you see something like:

Click image for larger version

Name:	ExpansionTank.jpg
Views:	98
Size:	36.3 KB
ID:	341431

and it might seem that what I am looking for is number 4 in this diagram. But that item (part number 11531436122) is actually a long hose which connects the front of the expansion tank to the radiator. I know it seems like in the picture that it connects to the left rear of the tank, but it doesn't. Nowhere have I been able to find a picture and part number of the hose which goes from the left side to the engine block. Here is a picture of that hose on my car (I draped a little black piece of plastic around it so as to identify it):

Click image for larger version

Name:	IMG_2739.jpg
Views:	84
Size:	82.6 KB
ID:	341434

You would think all I would have to do is go to a BMW dealership and ask them. But they bring up the same diagram. Part of the problem is that their parts list for this car specifies an updated expansion tank and the parts list indicates a water hose is required to use with this new expansion tank. So the parts manager assumes that is the hose I am looking for. But it looks nothing like what I have. It looks like a big U:

Click image for larger version

Name:	IMG_2740.jpg
Views:	71
Size:	109.4 KB
ID:	341433

It is part number 11537505831 and is about 5" x 7".

Does anyone know the part number of the hose I need, or a picture which shows this hose leaving the expansion tank?
Reply With Quote
Old 09-12-2012, 08:14 AM
postalZ3 postalZ3 is offline
Officially Welcomed to the 'Fest
Location: California
Join Date: Jun 2006
Posts: 401
Mein Auto: 2000 Z3 2.8
It appears to be the correct hose. http://www.pelicanparts.com/cgi-bin/...FILTER_TOOL=ON

Give pelicanparts a call, they may be able to help.
<img src=http://i.imgur.com/JMjPR.jpg border=0 alt= />

Last edited by postalZ3; 09-12-2012 at 08:56 AM.
Reply With Quote

See More Related BMW Stories

expansion tank hose

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36/7 Z3 (1996-2002)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -7. The time now is 02:27 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001- VerticalScope Inc. All rights reserved.