Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > The Best of Bimmerfest! > BMW Diesel Owners / Enthusiasts

BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

Reply
 
Thread Tools Display Modes
  #1  
Old 12-30-2012, 05:17 PM
3ismagic#'s Avatar
3ismagic# 3ismagic# is offline
HerrDoktorProfessor
Location: Another State of Mind
 
Join Date: Mar 2011
Posts: 3,264
Mein Auto: '11 335d
Coolant top-off frequency

Last night I got a warning that my coolant was low. This AM I added a quart or so of coolant. I am wondering how often folks have had to do this?

I have 14k miles. I assume they checked the coolant level in the standard oil change maintenance? That was 5 months ago for me. I haven't noticed any leaking.
Should I be worried about this?
__________________

Entertaining America Since 1975
European Delivery July 26th 2011
ED Video:
ED Trip Report:http://www.bimmerfest.com/forums/sho...d.php?t=557294

335d| Deep Sea Blue| Black/Aluminum | Stuff | Gadgets | More Stuff | Power Whatnots | Auto-Verbing Nouns
BMWCCA #448878
Reply With Quote
Advertisement
  #2  
Old 12-30-2012, 05:38 PM
floydarogers's Avatar
floydarogers floydarogers is offline
Pedant and Curmudgeon
Location: Renton, WA
 
Join Date: Oct 2010
Posts: 3,825
Mein Auto: 335d, 328d, Toyota T100
Definitely you should be worried. It is not normal; you probably have some sort of leak. You need to get the cooling system pressure-tested.
Reply With Quote
  #3  
Old 12-30-2012, 08:51 PM
pedser pedser is offline
Registered User
Location: Tulsa, OK
 
Join Date: Jul 2006
Posts: 59
Mein Auto: 04 325, 2011 335d
Same issue for me at 15k...... stoped by the dealer and they top it off, so far 34k is all good......I wondered the same thing , this should be part of the maintenance check.

Keep an eye on it, if you get the warning again take it in.

Enjoy,

P


Sent from my GT-P5113 using Bimmer App
__________________
[SIGPIC]

Loving Life!
Reply With Quote
  #4  
Old 12-31-2012, 12:26 AM
ProRail ProRail is offline
"Clunker" *****
Location: Columbia MD
 
Join Date: May 2006
Posts: 4,599
Mein Auto: 1999 BMW 528A--165K
Quote:
Originally Posted by 3ismagic# View Post
Last night I got a warning that my coolant was low. This AM I added a quart or so of coolant. I am wondering how often folks have had to do this?

I have 14k miles. I assume they checked the coolant level in the standard oil change maintenance? That was 5 months ago for me. I haven't noticed any leaking.
Should I be worried about this?
I have a 1999 528 (180K miles), and have never had to top off the coolant or oil between 10K oil services.
Reply With Quote
  #5  
Old 12-31-2012, 08:35 AM
KeithS KeithS is offline
Officially Welcomed to the 'Fest
Location: Central NJ
 
Join Date: Dec 2001
Posts: 1,650
Mein Auto: '11 335d, '00 540iT
Quote:
Originally Posted by 3ismagic# View Post
Last night I got a warning that my coolant was low. This AM I added a quart or so of coolant. I am wondering how often folks have had to do this?

I have 14k miles. I assume they checked the coolant level in the standard oil change maintenance? That was 5 months ago for me. I haven't noticed any leaking.
Should I be worried about this?
It's not uncommon to need a top off once a year once the weather turns cold. There are always minor losses of coolant from presssure burping, especially in the warmer weather. Then when it gets cold and the level gets a little lower due to contraction, you get the low level warning.

Yes the dealer is suppose to check this during regular service but then it's suppose to be checked cold, and they are doing it hot.
Reply With Quote
  #6  
Old 12-31-2012, 08:53 AM
Snipe656 Snipe656 is offline
Officially Welcomed to the 'Fest
Location: Humble, Tx
 
Join Date: Oct 2009
Posts: 4,032
Mein Auto: 2009 335d
Quote:
Originally Posted by KeithS View Post
It's not uncommon to need a top off once a year once the weather turns cold. There are always minor losses of coolant from presssure burping, especially in the warmer weather. Then when it gets cold and the level gets a little lower due to contraction, you get the low level warning.

Yes the dealer is suppose to check this during regular service but then it's suppose to be checked cold, and they are doing it hot.
Why would the overflow tank not be able to handle that? Or do these cars not have an overflow? Just wondering because I never have had to add coolant to a vehicle unless I had a leak or something worse that was consuming it. But I also have not spent extended periods of time in what most would classify as cold weather.
__________________
--Admiral Aaron Rouse
Reply With Quote
  #7  
Old 12-31-2012, 09:06 AM
KeithS KeithS is offline
Officially Welcomed to the 'Fest
Location: Central NJ
 
Join Date: Dec 2001
Posts: 1,650
Mein Auto: '11 335d, '00 540iT
The overflow/expansion tank does handle this. But there are minor losses that over a period of year(s) may require the system to be topped off. And it will likely show up in the cold weather. The pressure cap will release air when the system goes from a very cold to very hot state, this is normal. But some liquid will be carried over in that burp. After a year or 2, you might have to add a cup or so of coolant. If your adding quarts/gallons or more than once a year, yes, you have a problem.

The dealer should be checking this during routine maintanance, but if they are using the cold coolent level point when they are checking it hot, then it's underfilled. My recommendation is to ONLY fill to the minimum (cold) point, no more. I have found that if you fill to anything more then min recommended, it will only burp out anyway.

Last edited by KeithS; 01-01-2013 at 12:00 PM.
Reply With Quote
  #8  
Old 12-31-2012, 01:38 PM
3ismagic#'s Avatar
3ismagic# 3ismagic# is offline
HerrDoktorProfessor
Location: Another State of Mind
 
Join Date: Mar 2011
Posts: 3,264
Mein Auto: '11 335d
Thanks for the input guys. I'll keep an eye on it and get it looked at if it persists.
__________________

Entertaining America Since 1975
European Delivery July 26th 2011
ED Video:
ED Trip Report:http://www.bimmerfest.com/forums/sho...d.php?t=557294

335d| Deep Sea Blue| Black/Aluminum | Stuff | Gadgets | More Stuff | Power Whatnots | Auto-Verbing Nouns
BMWCCA #448878
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > The Best of Bimmerfest! > BMW Diesel Owners / Enthusiasts
Today's Posts Search
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 -7. The time now is 09:37 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms