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 > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

Thread Tools Display Modes
Old 03-21-2013, 12:27 PM
rtl1369 rtl1369 is offline
Registered User
Location: Stokesdale, North Carolina
Join Date: Dec 2009
Posts: 20
Mein Auto: 2001 530 sport
Inconsistent interior heat - slight antifreeze smell


2001 530 125,000 miles. Replaced the cooling system 5,000 miles ago. My interior heat is inconsistent. At times hot air blowing from the driver side only, then cools down to barley warm. Recently noticed a very slight antifreeze smell, but no slimy interior windows or other evidence. Car runs at normal operating temp, has not overheated.

No leaks after being parked. My thought is the heater core is going bad. Called my local shop and they said heater core is very uncommon, and probably something else.

Advice to help diagnose much appreciated. Any helpful links to change out a heater core, if turns out to be the problem.


Reply With Quote
Old 03-21-2013, 12:36 PM
edjack edjack is offline
Officially Welcomed to the 'Fest
Location: San Jose, CA
Join Date: May 2007
Posts: 13,356
Mein Auto: '97 540i 6 speed
Damp carpets? Does the coolant level drop? Intermittent heat can signal air in the system, which can enter via leaks.

Heater core failure on the E39 is very rare, except for those cars not properly maintained.

Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
Reply With Quote

See More Related BMW Stories

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)
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 On

Forum Jump

All times are GMT -7. The time now is 06:18 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms