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 > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Thread Tools Search this Thread Rating: Thread Rating: 1 votes, 5.00 average. Display Modes
Prev Previous Post   Next Post Next
Old 02-05-2013, 03:36 AM   #1
Mango's Avatar
Join Date: Mar 2006
Location: Southern California
Posts: 26,428
My Ride: Lexus
Video: how to bleed your E46 non-m cooling system

I'll add this to the cooling thread (if it lets me. if not, i'll have to ask jake to add it) but I'll also put this in a new thread to increase the chance someone finds it. Hopefully it can give a visual aid in what to do. I put this together at midnight so sorry for any typos or inconsistencies.


Step 1) Raise front of vehicle on ramps or incline. This helps the air bubbles escape easier.

Step 2) Insert key, turn to the ON position (dash lights on--engine OFF)

Step 3) Turn heater to MAX heat and fan speed to LOW.

Step 4) Completely remove bleed screw and expansion tank cap. Set aside.

Step 5) Pour your desired mixture of Genuine BMW coolant and distilled water into the expansion tank. Approximately two gallons will be used to satisfy an empty system.

Step 6) Once the system is starting to fill to capacity, water and air bubbles will escape the bleed hole. Have a bucket to catch the spilling coolant. Keep pouring water or coolant (in my case, I pour distilled water only) until water comes out of the bleed hole without any bubbles. It should be a steady stream of water. Do this for about 2-3 minutes or until you are satisfied there are no more bubbles.

Step 7) Siphon off any excess water before reinstalling the bleed screw and expansion tank cap and eventually starting the engine.

Step 8) Monitor engine temps using the OBC method (Google it if you don't know how). Temps should read between 87 and 98c once the car has warmed up and driven. You might need to bleed again or top off coolant the next day.

Step 9) Keep monitoring for the next few days so the system stablizes.

Step 10) Visit E46Fanatics.com and check into my cooling thread if you liked this video or information. Let me know!

Mango is online now   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.

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 05:00 PM.

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