Wow, I've missed a lot on this thread! Sounds like it's goin good for ya we350z :)

How many coolant hoses are there in total if I am to replace them all?

Lots, but the main ones to worry about are the upper and lower radiator hoses and the vent hose to the expansion tank. Pretty much any hose with a plastic junction.

I am going to replace these 3 hoses. I also think I will replace the belts since they are 4 years old after reading this article - what's another $30 anyway when you're already spending $300 or so? What's the difference between the bottom 2 belts on this page? Does it matter which one I get?

--Thanks

Not sure in the difference in the 2 main belt choices, they may be different legnths?

One extra thing to think about getting is the coolant temp sensor that goes on the lower radiator hose. The o-ring on it tends to deteriorate and cause a leak, and if it isn't leaking now it likely will after disturbed/swapped. (unfortunately the o-ring isn't available seperately through the dealer, may be able to find it online though)

This right?

This is what I am ordering:

Part Number

Brand / Description

Price

List

Core

Qty

Total

W0133-1626722 *
http://img.eautopartscatalog.com/liv...1626722OES.JPG


Coolant/Antifreeze 1 Gallon


$19.09

$19.95



Update

Remove


$38.18

11537500752
http://www.autohausaz.com/secure/Par...1537500752.jpg

CRP-Contitech/OES
Cooling/Coolant Hose; Auxillary Thermostat to Water Hose
2000 BMW X5

$15.96

$19.00



Update

Remove


$15.96

11537500750
http://www.autohausaz.com/secure/Par...1537500750.jpg

CRP-Contitech
Cooling/Coolant Hose; Lower Radiator to Thermostat Housing
2000 BMW X5

$25.95

$36.95



Update

Remove


$25.95

11537500746
http://www.autohausaz.com/secure/Par...1537500746.jpg

BMW (OE)
Cooling/Coolant Hose; Upper Radiator; 4-Way Hose
2000 BMW X5

$61.18

$70.80



Update

Remove


$61.18

11537505950
http://www.autohausaz.com/secure/Par...1537505950.jpg

BMW (OE)
Expansion Tank/Coolant Reservoir Hose; Expansion Tank to Additional Water Pump


$18.46

$20.47



Update

Remove


$18.46

11531439123
http://www.autohausaz.com/secure/Par...1531439123.jpg

CRP-Contitech/OES
Expansion Tank/Coolant Reservoir Hose; Expansion Tank to Upper Radiator Hose


$27.04

$34.20



Update

Remove


$27.04

13621433077
http://www.autohausaz.com/secure/Par...3621433077.jpg

FAE
Radiator/Auxiliary Fan Switch; In Lower Radiator Hose


$15.78

$29.90



Update

Remove


$15.78

99919220650
http://www.autohausaz.com/secure/Par...9919220650.jpg

CRP-Contitech
Serpentine Belt/Ribbed Drive Belt; AC Compressor
2000 BMW X5

$11.02

$21.67



Update

Remove


$11.02

7PK1635
http://www.autohausaz.com/secure/PartImages/7PK1635.jpg

CRP-Contitech
Serpentine Belt/Ribbed Drive Belt; Alternator/Power Steering/Water Pump
2000 BMW X5

$19.28

$36.25



Update

Remove


$19.28

11511705408
http://www.autohausaz.com/secure/Par...1511705408.jpg

DPH/CRP-Contitech
Thermostat Gasket/Seal; O-Ring Seal; 76.5x4mm
2000 BMW X5

$0.93

$4.12



Update

Remove


$0.93

11531436386
http://www.autohausaz.com/secure/Par...1531436386.jpg

Behr (OES)
Thermostat; Assembly with Electrical Plug for Characteristics Control
2000 BMW X5

$75.71

$92.85



Update

Remove


$75.71

11511731462
http://www.autohausaz.com/secure/Par...1511731462.jpg

VictorReinz/CRP-Contitech
Water Pump Gasket
2000 BMW X5

$3.13

$4.06



Update

Remove


$3.13

11531710048
http://www.autohausaz.com/secure/Par...1531710048.jpg

DPH/CRP-Contitech
Water Pump Gasket; Water Pipe to Water Pump O-Ring; 34.2x4.0mm
2000 BMW X5

$0.81

$2.20



Update

Remove


$1.62

11511713266
http://www.autohausaz.com/secure/Par...1511713266.jpg

Graf
Water Pump; With Metal Impeller
2000 BMW X5

$115.84

$192.79



Update

Remove


$115.84

Parts Total

$430.08

Refundable Core Deposits

$0.00

Total Before Shipping

$430.08

Looks like a good parts list. I'm thinking the o-rings should come with the respected parts, but those are the cheapest parts anyways so I guess it doesn't really matter.

Yeah - but it would suck to find out they are not included b/c then I don't have everything I need to do the job and I'll have to go get some...

I think I was missing the small water pipe o-ring from this order here. I only need one I beleive since the other side of the water tubes should stay put.

I might just get that WP off eBay since I know it comes with the two different size water tube gaskets plus it's cheaper - but is Meyle brand bad??

I have no experience with any brands other than what is sold at the dealer... Working there just makes it too easy for me.