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 > BMW Regional Forums > Regional Forums > Australia

Check out other E46Fanatics members rides in the Enthusist Directory!

If you don't have your garage setup, sign up today HERE

Thread Tools Search this Thread Rate Thread Display Modes
Old 01-03-2013, 04:46 PM   #1
Registered User
Join Date: Jan 2011
Location: Newcastle, NSW
Posts: 71
My Ride: 2002 320Ci
Help! - Pre-Nullarbor Coolant Bogey

The coolant bogeyman has struck.

Was checking my fluids before I head off on Sunday.
My expansion tank is completely empty.
I can see dried coolant sitting around the top of the expansion tank.

No cluster warnings and I have driven the car 800km in the last week.

The cooling system was replaced a year ago, so I have new expansion tank, cap, hoses etc...

No signs of leaks anywhere else, no puddles.
I am pretty sure this is a slow leak, as I noticed coolant sitting on the expansion tank around a couple of months ago, and then forgot about it.

My suspicion is that the expansion tank cap is not sealing properly as everything seems to originate from the cap.

Please see the attached photos. All of the dried coolant is sitting around the top of the tank. The coolant sitting near the bleed screw is not from the screw, it has spilt there from the top of the tank.

I have got a new expansion tank cap in my spares box. I can top the tank up and change the cap.

Attached Thumbnails
Click image for larger version

Name:	600_1868.jpg
Views:	99
Size:	73.9 KB
ID:	484472   Click image for larger version

Name:	600_1869.jpg
Views:	92
Size:	79.8 KB
ID:	484473  
aussie-320ci is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 01-03-2013, 05:14 PM   #2
Registered User
Join Date: Jun 2011
Location: Brisbane, Australia
Posts: 347
My Ride: 2007 MX-5
I guess all you can do is clean it all off, try a new cap and monitor it on a daily basis. A system pressure test may also be helpful.
Brissyjohn is offline   Reply With Quote
Old 01-04-2013, 09:40 PM   #3
Registered User
Join Date: Jan 2011
Location: Newcastle, NSW
Posts: 71
My Ride: 2002 320Ci
I topped up the tank and changed the cap. Everything seems fine.
I will monitor it for a while and see what happens.
aussie-320ci is offline   Reply With Quote
Old 01-05-2013, 08:45 PM   #4
Registered User
Join Date: Apr 2004
Location: Brisbane, Australia
Posts: 470
My Ride: 2002 E46 BMW 330Ci
Good luck with your road trip today. I hope a new cap solves this problem permanently. Can't be very confidence inspiring when this happens right before a long road trip!!! Drive safe, and have a blast!
Alpine is offline   Reply With Quote
Old 01-05-2013, 09:32 PM   #5
E46 Coupe
Registered User
E46 Coupe's Avatar
Join Date: May 2008
Location: Australia
Posts: 5,262
My Ride: Rules1 & 2: S T F U!
You'll be fine. Likely happened after a while cos all the air bubbles finally cleared out of the system. It's really not that low.
I've seen a fanantic with the coolant low enough the floating stick wet so far down the shaft it never surfaced again after filling it
E46 Coupe is offline   Reply With Quote

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 04:19 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use