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 Rate Thread Display Modes
Old 12-06-2012, 03:58 PM   #1
thecarguy
Registered User
 
Join Date: Nov 2006
Location: San Diego, CA
Posts: 118
My Ride: ZHP Sedan
Question No Coolant bleed necessary?

I just replaced the o-ring on my coolant temp sensor this morning. As I have read in posts I kept the cap on and everything tight to keep the system pressurized. Maybe a cup of coolant came out - not much. Replaced sensor topped off the system a bit. Drove it around to operating temp, no leaks, and the needle stayed at dead center. Drove into work this morning and same thing.

Did I luck out and not introduce any bubbles? do I not need to bleed?

Also, I figured instead of spending $20 bucks on a gallon of coolant when I won't use hardly any of it, I spent $10 bucks and got Water Wetter. All I had to add was the small bottle of water wetter and maybe a cup of distilled water.

I know from the threads that you won't see much of a difference with water wetter in our cars, but I still figured it might be a tick lower on the gauge as I have seen some post. This causes me to think maybe I do have a few bubbles?
thecarguy is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 12-07-2012, 07:21 PM   #2
thecarguy
Registered User
 
Join Date: Nov 2006
Location: San Diego, CA
Posts: 118
My Ride: ZHP Sedan
Dang, I'm striking out on this forum! 2nd post that is getting no love.
thecarguy is offline   Reply With Quote
Old 12-10-2012, 10:27 PM   #3
thecarguy
Registered User
 
Join Date: Nov 2006
Location: San Diego, CA
Posts: 118
My Ride: ZHP Sedan
Can someone please help me out here?

I have searched many times here and on google and can't find the answer. When doing this procedure is it possible that a bleed is not needed?

Please refer to my original post way up 2 spots and note that my car temp is still running dead in the middle at 12 oclock.
thecarguy is offline   Reply With Quote
Old 12-10-2012, 11:10 PM   #4
TurnersInOz
Registered User
 
Join Date: Dec 2011
Location: Brisbane
Posts: 470
My Ride: 2004 325i
If your ET was filled properly before the o-ring was replaced and if you only lost about a cup then you most likely will be fine.
When you say you lost about a cup of coolant, is this the amount you added back in to the ET, or an estimate of how much came out the connection on the lower hose?
TurnersInOz is offline   Reply With Quote
Old 12-11-2012, 12:15 AM   #5
paraklas
Registered User
 
Join Date: Jan 2006
Location: Cyprus
Posts: 5,798
My Ride: ESS TS2 320ci
You don't need to bleed the coolant system, unless you have lost a significant amount of coolant to the point of letting the ET become dry.
__________________
http://www.argyrides.eu/makeyourownsig.jpg
paraklas is offline   Reply With Quote
Old 12-11-2012, 12:16 AM   #6
mkodama
Registered User
 
mkodama's Avatar
 
Join Date: Oct 2006
Posts: 33,164
If your car isn't overheating, and the heater blows hot air, you're fine.
__________________

mkodama is offline   Reply With Quote
Old 12-11-2012, 12:24 AM   #7
thecarguy
Registered User
 
Join Date: Nov 2006
Location: San Diego, CA
Posts: 118
My Ride: ZHP Sedan
Quote:
Originally Posted by TurnersInOz View Post
If your ET was filled properly before the o-ring was replaced and if you only lost about a cup then you most likely will be fine.
When you say you lost about a cup of coolant, is this the amount you added back in to the ET, or an estimate of how much came out the connection on the lower hose?
Thanks for the response. It was an estimate of the amount of coolant that came out of the lower radiator hose when I pulled the coolant temp sensor out. The level in the ET was a bit low prior just do to the leaky sensor, but the low coolant light did not come on yet.
thecarguy is offline   Reply With Quote
Old 12-11-2012, 12:24 AM   #8
thecarguy
Registered User
 
Join Date: Nov 2006
Location: San Diego, CA
Posts: 118
My Ride: ZHP Sedan
Quote:
Originally Posted by mkodama View Post
If your car isn't overheating, and the heater blows hot air, you're fine.
I'll check the heater.
thecarguy 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 07:22 AM.


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