E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

Reply
 
Thread Tools Search this Thread Rating: Thread Rating: 2 votes, 5.00 average. Display Modes
Old 05-04-2004, 10:41 PM   #1
mcabr
Just Marinatin'
 
mcabr's Avatar
 
Join Date: Apr 2002
Location: Aichi
Posts: 2,632
My Ride: Chikatetsu
Water Pump. Anyone replace their own?

I searched on this topic and it seems reasonably easy so I was wondering if anyone else had done this and how hard it is. I am able to do most installs but playing with the engine seems kind of ify to me. However, when looking into the engine bay the waterpump is pretty much just right there once I take the fan off and radiator or whatever. Any opinions on this?
__________________
mcabr is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 05-04-2004, 10:43 PM   #2
ToeKnee
Registered User
 
Join Date: Apr 2003
Location: los angeles
Posts: 90
My Ride: has some mods
Send a message via AIM to ToeKnee Send a message via Yahoo to ToeKnee
I want to know this too. Car has 50K and I think i will be replacing it in the near future
__________________
ToeKnee is offline   Reply With Quote
Old 05-04-2004, 11:07 PM   #3
mcabr
Just Marinatin'
 
mcabr's Avatar
 
Join Date: Apr 2002
Location: Aichi
Posts: 2,632
My Ride: Chikatetsu
hm

Quote:
Originally Posted by ToeKnee
I want to know this too. Car has 50K and I think i will be replacing it in the near future
Is yours rattling and making churning noises at low rpms?
__________________
mcabr is offline   Reply With Quote
Old 05-05-2004, 01:02 AM   #4
darth
Registered User
 
Join Date: Oct 2003
Location: california
Posts: 29
My Ride: 323i
water pump adventure... starting tomorrow... maybe..

My serpentine belt broke and wrapped itself around the water pump pulley. (The pump is junked and I think that cause the failure) So I put a call into Pacific and there overnighting some belts and a new pump. If things arrive when they should, I'll let you know how it turns out tomorrow night.

The only area of concern is the Bentley maual says to coat the water pump o-ring with lubricant but not what type. Any ideas anyone?
darth is offline   Reply With Quote
Old 05-05-2004, 01:09 AM   #5
mcabr
Just Marinatin'
 
mcabr's Avatar
 
Join Date: Apr 2002
Location: Aichi
Posts: 2,632
My Ride: Chikatetsu
hmmm

Quote:
Originally Posted by darth
My serpentine belt broke and wrapped itself around the water pump pulley. (The pump is junked and I think that cause the failure) So I put a call into Pacific and there overnighting some belts and a new pump. If things arrive when they should, I'll let you know how it turns out tomorrow night.

The only area of concern is the Bentley maual says to coat the water pump o-ring with lubricant but not what type. Any ideas anyone?
Some people say they spray it with WD40. Maybe you could use some ion grease or whatever that stuff is called that is white. Looks like crisco. I think that a thin coat of that would be good. I look forward to your results.
__________________
mcabr is offline   Reply With Quote
Old 05-05-2004, 01:33 AM   #6
niL
is on da floor
 
niL's Avatar
 
Join Date: Jun 2002
Location: New York
Posts: 2,695
My Ride: 2001 330i
Send a message via AIM to niL
if you can get the radiator out it is no problem at all. may i add the radiator is easy as hell to get out too.
__________________

2001 330i rebuilt from the salvage yard
From start to finish...
niL is offline   Reply With Quote
Old 05-05-2004, 05:09 AM   #7
RushRacer
Registered Abuser
 
Join Date: Feb 2003
Location: Rancho Chimichanga
Posts: 1,078
My Ride: '02 330Ci
Quote:
Originally Posted by darth
My serpentine belt broke and wrapped itself around the water pump pulley. (The pump is junked and I think that cause the failure) So I put a call into Pacific and there overnighting some belts and a new pump. If things arrive when they should, I'll let you know how it turns out tomorrow night.

The only area of concern is the Bentley maual says to coat the water pump o-ring with lubricant but not what type. Any ideas anyone?
In case it helps at all, I find this link helpful for my short memory...

http://www.loctite.com/int_henkel/lo...countermat.pdf

Use the copper, btw.
__________________


I love you, Brian Fellow.
And I love your hat, Rufus.

RushRacer is offline   Reply With Quote
Old 05-06-2004, 10:59 PM   #8
darth
Registered User
 
Join Date: Oct 2003
Location: california
Posts: 29
My Ride: 323i
thanks RushRacer.

mcabr,

turns out pacific didn't ship the same day i ordered the parts..so i wont be doing the change until friday. i've already lossened the old water pump to make sure it will come off and it looks like it will. i'll see if i can get some pix of the process. i don't think there'll be much to it though.
darth is offline   Reply With Quote
Old 05-07-2004, 09:31 AM   #9
mcabr
Just Marinatin'
 
mcabr's Avatar
 
Join Date: Apr 2002
Location: Aichi
Posts: 2,632
My Ride: Chikatetsu
yeah okay

Quote:
Originally Posted by darth
thanks RushRacer.

mcabr,

turns out pacific didn't ship the same day i ordered the parts..so i wont be doing the change until friday. i've already lossened the old water pump to make sure it will come off and it looks like it will. i'll see if i can get some pix of the process. i don't think there'll be much to it though.
I need to order my parts so I can do the install. I just got my AC compressor yesterday I am going to think about putting that in too.
__________________
mcabr is offline   Reply With Quote
Old 05-07-2004, 11:04 AM   #10
sullyz
frequent tire purchaser
 
Join Date: Jun 2002
Location: Bay Area, CA
Posts: 639
My Ride: 01 M3, 02 M3, 08 M3
I replaced the water pump on my 323ci quite a while ago. It was relatively easy.
There isn't a great deal of clearance due to the fan, but manageable. I'm not sure how much clearance there is with the four door though..... at least you've got a manual trans so that should help.
There's only something like four 10mm bolts that hold it on, so once you get the belt off it's a breeze. O rings are used to seal it so there's no gasket scraping or anything.
__________________

Mods: GC Coilovers|GC Sways|SS S-Pipes|SS X-Pipe|SS Race Muffler|19" BBS CH's|Subframe Reinforcement
sullyz is offline   Reply With Quote
Old 05-07-2004, 11:27 AM   #11
Alan L.
TWC Alumni
 
Alan L.'s Avatar
 
Join Date: Dec 1969
Location: East Coast
Posts: 1,561
My Ride: AW M-Sport
Take pics guys....i might want to change mine soon.

How much does a new water pump go for?

Alan
__________________

2014 LCI 550i M Sport | 3D Design Front Spoiler | BMW Performance Black Kidney Grills | BMW Performance Trunk Spoiler | BMW Performance Gloss Black Diffuser | Painted Reflectors | Wincos 30% Tint | Supersprint Quad Exhaust | AC Schnitzer Springs | MORR VS8.2 Brushed Finished Wheels 20x10R and 20x9F | Michelin PSS Tires 245/35/20F 285/30/20R |||More Photos of my car here|||
Alan L. is offline   Reply With Quote
Old 05-07-2004, 02:51 PM   #12
mcabr
Just Marinatin'
 
mcabr's Avatar
 
Join Date: Apr 2002
Location: Aichi
Posts: 2,632
My Ride: Chikatetsu
here

Quote:
Originally Posted by Alan L.
Take pics guys....i might want to change mine soon.

How much does a new water pump go for?

Alan
Here is a link to a good website http://www.alloembmwparts.com/bmw-ac-compressor.html

They run about 60 bucks and free shipping and I think that the o ring is like 3 bucks.
__________________
mcabr is offline   Reply With Quote
Old 05-07-2004, 10:23 PM   #13
darth
Registered User
 
Join Date: Oct 2003
Location: california
Posts: 29
My Ride: 323i
water pump replacement



I am mobile again.

Ok so I changed my water pump this after noon. I started at 4 pm and the old pump was off the engine by 4:05 pm. (My drive belt had been torn to shreds by the water pump pulley. All I had left were little bits of rubber and a really long thin wire.)




1. Water Pulley bolt
2. Water Pulley
3. Water pump
4. O-ring, included with pump
5. Nut


The pump is held on by 4 nuts (red arrows). Simply remove them and then get 2 M6 screws and put them in the threaded holes and tighten them in. (white arrows). You can skip this and simply pullout the pump, but since I had my fan off I didn't want the pump to go flying into my radiator os I opted for caution.

Lube the o-ring on the new pump with some coolant to help with installation. Mount the pump on to the 4 threaded studs and then tighten the nuts.
Pump was installation was done by 4:15 pm.

Next step was to put my drive and ac belts back on. ac belt = no brainer. drive belt = headache.

The Bentley manual is wrong, as previously mentioned before by others. The tensioner bolt is under the cap on the ilder pointed here,
30 mintues later, the job was done.

I hope this helps. Let me know if there are any questions. I apolpgize for the crappy posting, I don't know how to get pictures to show up.
Attached Thumbnails
Click image for larger version

Name:	water pump assy1.jpg
Views:	18264
Size:	79.0 KB
ID:	76843   Click image for larger version

Name:	water pump assy.jpg
Views:	17810
Size:	30.2 KB
ID:	76844   Click image for larger version

Name:	water pump assy2.jpg
Views:	18793
Size:	67.0 KB
ID:	76845  
darth is offline   Reply With Quote
Old 05-07-2004, 10:37 PM   #14
Obsidian
Registered User
 
Join Date: Oct 2003
Location: Fairfax, VA
Posts: 208
My Ride: M3 Vert
Thanks for the write-up and illustrations.
Obsidian is offline   Reply With Quote
Old 05-07-2004, 10:37 PM   #15
niL
is on da floor
 
niL's Avatar
 
Join Date: Jun 2002
Location: New York
Posts: 2,695
My Ride: 2001 330i
Send a message via AIM to niL
wow 4 to 4:05! I assume you worked from under the car to get it out then since it's so low. Kudos to you
__________________

2001 330i rebuilt from the salvage yard
From start to finish...
niL is offline   Reply With Quote
Old 05-08-2004, 12:25 AM   #16
RushRacer
Registered Abuser
 
Join Date: Feb 2003
Location: Rancho Chimichanga
Posts: 1,078
My Ride: '02 330Ci
Great news! Thanks for posting some tips that'll come in handy in the future.

__________________


I love you, Brian Fellow.
And I love your hat, Rufus.

RushRacer is offline   Reply With Quote
Old 05-08-2004, 03:03 AM   #17
darth
Registered User
 
Join Date: Oct 2003
Location: california
Posts: 29
My Ride: 323i
Quote:
Originally Posted by niL
wow 4 to 4:05! I assume you worked from under the car to get it out then since it's so low. Kudos to you

actually, i just did it from the top. you have to remove the air intake duct that goes over the center of the radiator and take out the fan which takes like 2 minutes. (My car is manual so I didn't have to worry about a fan clutch. Also i did it earlier the day prior cuz I thought I was getting by parts the day before.) The rest should be as easy as pie. By the way if you go to Rogue Engineering and look up thier pulley install directions it will tell you exactly what you need.

http://www.rogueengineering.com/pdf/...er_pulleys.pdf


All in all I'ld say it should take you about 1 hrs from the time you pop your hood to the time you can roll if your being really carefull and taking your time. (It took me a little over an hour and that is including the 15 min I spent online looking for the drive belt tensioner adjustment bolt.)
darth is offline   Reply With Quote
Old 05-08-2004, 10:46 AM   #18
mcabr
Just Marinatin'
 
mcabr's Avatar
 
Join Date: Apr 2002
Location: Aichi
Posts: 2,632
My Ride: Chikatetsu
thats great

This is just the type of information I was hoping someone would provide. Thanks a lot for taking the time to post pics and everything. I have a manual car too so it looks like it is not going to be a hard install. The AC compressor on the other hand looks kind of complicated. Maybe someone will do that install too. hehe.
__________________
mcabr is offline   Reply With Quote
Old 05-19-2004, 09:20 PM   #19
bbh03
...
 
Join Date: May 2003
Location: NJ
Posts: 1,335
My Ride: M5, X5, 911SC
Did you have a problem torquing the bolts on the water pump pulley? I was installing pulleys today and one snaped I think under less than 15 ft/lbs of torque. I have to check tomorrow but I hope the bolt snapped and not stripped threads in the water pump rotor or els Ill be doing the same thing as you soon
bbh03 is offline   Reply With Quote
Old 05-19-2004, 09:48 PM   #20
Alan L.
TWC Alumni
 
Alan L.'s Avatar
 
Join Date: Dec 1969
Location: East Coast
Posts: 1,561
My Ride: AW M-Sport
When you guys take the water pump out, does tons of coolant come pouring out?

Also, I noticed that most "oem bmw parts" site actually sells water pumps manufactured by Graff and other companies..... I'm wondering if its better to just get oem bmw made pumps or one of these other brands. Doesn't seem like the factory pumps lasts that long but i've also heard that some aftermarket pumps making weird noises once installed. What do you guys think?

Alan
__________________

2014 LCI 550i M Sport | 3D Design Front Spoiler | BMW Performance Black Kidney Grills | BMW Performance Trunk Spoiler | BMW Performance Gloss Black Diffuser | Painted Reflectors | Wincos 30% Tint | Supersprint Quad Exhaust | AC Schnitzer Springs | MORR VS8.2 Brushed Finished Wheels 20x10R and 20x9F | Michelin PSS Tires 245/35/20F 285/30/20R |||More Photos of my car here|||
Alan L. is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is ON





All times are GMT -5. The time now is 07:29 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use