BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


Reply
 
Thread Tools Display Modes
Old Tue, Nov-20-2012, 01:48:31 AM   #1
02blueru
Registered User
 
Join Date: Nov 2010
Posts: 67
Reputation: 0 02blueru is on a distinguished road
Location: Midvale

United States




Default Lower Radiator Hose Replacement

My coolant light came on today and it appears to be coming from the lower radiator hose area. Not sure yet if its the hose or the temp sensor. I want to replace everything in that area, so is there a list of parts (part #'s would be awesome) and tools I'll need for this job?

Also, I've looked at all of the DIYs but they all seem to involve doing something else as well such as replacing the pump. Is there something specific to this job? It looks like I'll have to remove the fan shroud, undertray, and the intake for room... Any thing else or know of any tricks that will make this easier?

Thanks guys
Jump to top 02blueru is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Tue, Nov-20-2012, 02:40:20 AM   #2
deadlysyns
Registered User
 
deadlysyns's Avatar
 
Join Date: Dec 2007
Posts: 5,464
Reputation: 0 deadlysyns is on a distinguished road
Location: DFW

United States




Default Re: Lower Radiator Hose Replacement

How many miles are on your car? Depending on the mileage, you should just do a complete coolant system overhaul.

Here is DIY link.

http://www.m3forum.net/m3forum/showthread.php?t=354281
__________________
Jump to top deadlysyns is online now   Reply With Quote
Old Tue, Nov-20-2012, 03:03:37 AM   #3
02blueru
Registered User
 
Join Date: Nov 2010
Posts: 67
Reputation: 0 02blueru is on a distinguished road
Location: Midvale

United States




Default Re: Lower Radiator Hose Replacement

Quote:
Originally Posted by deadlysyns View Post
How many miles are on your car? Depending on the mileage, you should just do a complete coolant system overhaul.

Here is DIY link.

http://www.m3forum.net/m3forum/showthread.php?t=354281
I just hit 60k, so i dont think thats necessary yet. I tend to subscribe to if it isn't broke don't fix it, but I also don't want to be fixing something in this area again because I didn't replace it the first time around.
Jump to top 02blueru is offline   Reply With Quote
Old Tue, Nov-20-2012, 03:58:19 AM   #4
deadlysyns
Registered User
 
deadlysyns's Avatar
 
Join Date: Dec 2007
Posts: 5,464
Reputation: 0 deadlysyns is on a distinguished road
Location: DFW

United States




Default Re: Lower Radiator Hose Replacement

check and see if coolant levels are correct...if it is change out your temp sensor.
__________________
Jump to top deadlysyns is online now   Reply With Quote
Old Tue, Nov-20-2012, 04:40:11 AM   #5
02blueru
Registered User
 
Join Date: Nov 2010
Posts: 67
Reputation: 0 02blueru is on a distinguished road
Location: Midvale

United States




Default

I guess I should have mentioned that I can visually see that it's leaking. A small puddle has dropped on my garage floor through the undertray

Last edited by 02blueru; Tue, Nov-20-2012 at 05:50:09 AM.
Jump to top 02blueru is offline   Reply With Quote
Old Tue, Nov-20-2012, 04:52:12 AM   #6
deadlysyns
Registered User
 
deadlysyns's Avatar
 
Join Date: Dec 2007
Posts: 5,464
Reputation: 0 deadlysyns is on a distinguished road
Location: DFW

United States




Default Re: Lower Radiator Hose Replacement

Quote:
Originally Posted by 02blueru View Post
I guess I should have mentioned that I can visually see that it's leaking. A small puddle has dropped on my garage floor though the undertray
just replace lower hose, follow DIY. fairly simple.

you might need oring for your temp sensor.
__________________
Jump to top deadlysyns is online now   Reply With Quote
Old Tue, Nov-20-2012, 06:05:38 AM   #7
see.m3.go
Registered User
 
see.m3.go's Avatar
 
Join Date: Oct 2010
Posts: 1,400
In the garage:
Reputation: 0 see.m3.go is on a distinguished road
Location: Del Mar

United States




Default Re: Lower Radiator Hose Replacement

It is a pretty simple DIY to replace the lower hose. Plus, it only costs like 20 bucks.
__________________

2003 TiAg/Imola SMG to 6MT: AST 4100, Vorshlag Camber Plates, Status Gruppe Headers, Status Gruppe Muffler, Recaro SPG, VAC Floor Mounts TiAg Kirk Roll bar, G-force 6pt Harnesses, Evolve Tune, TMS Power Pullies, 330d SSK, Macht Schnell MS97 Shift Knob, Macht Schnell Stage 1 Intake, Hardwired V1, ZCP Brakes, MH Stud Conversion, APEX ARC-8 Hyperblack 18x9.5 et35, Hankook R-S3 265/35/18

My Journal
Jump to top see.m3.go is offline   Reply With Quote
Old Tue, Nov-20-2012, 05:40:00 PM   #8
e46<3
Registered User
 
e46<3's Avatar
 
Join Date: Oct 2009
Posts: 949
In the garage:
Reputation: 0 e46<3 is on a distinguished road
Location: Tri-State

United States




Default Re: Lower Radiator Hose Replacement

Pressure test the system before buying anything!
__________________
Follow the link for good tunes!

Have a listen to my SoundCloud


https://soundcloud.com/bryanisaac
Jump to top e46<3 is offline   Reply With Quote
Old Tue, Nov-20-2012, 05:48:26 PM   #9
02blueru
Registered User
 
Join Date: Nov 2010
Posts: 67
Reputation: 0 02blueru is on a distinguished road
Location: Midvale

United States




Default Re: Lower Radiator Hose Replacement

I decided to do the upper hose as well while i'm at it. I bought both hoses, temp sensor (including o-ring), and the coolant from pelican parts for a decent price including free 2-day shipping. I'll also be replacing my windshield washer pump and the grommet which has been dry for a while now due to a leak haha. Thanks for the replies everyone.
Jump to top 02blueru is offline   Reply With Quote
Old Tue, Nov-20-2012, 05:55:55 PM   #10
Dan4hockey99
stancebro4lyfe
 
Dan4hockey99's Avatar
 
Join Date: Jun 2011
Posts: 1,877
In the garage:
Reputation: 0 Dan4hockey99 is on a distinguished road
Location: Wayne, NJ

Ukraine




Default Re: Lower Radiator Hose Replacement

DIY is a little messy but not difficult. I would just get a new temp sensor they go for around $25.
__________________
2004 Mystic 6MT

///M3AN One Headers | Agency Power V2 | Evolve-R | Blitz Technospeed Z1 | BC Racing Coilovers | Macht Schnell | CSL
Jump to top Dan4hockey99 is offline   Reply With Quote
Reply

Bookmarks

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 Off

Forum Jump



All times are GMT. The time now is 08:07:10 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2014 M3Forum.com
Discussing Lower Radiator Hose Replacement in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)