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

Reply
 
Thread Tools Display Modes
  #1  
Old 01-25-2013, 05:06 AM
osikani osikani is offline
Registered User
Location: Bloomfield, NJ
 
Join Date: May 2008
Posts: 25
Mein Auto: 2000 528I
Arrow Heater not working

Folks, for the past month, the heater is not working properly; it's been intermittently. Since Monday there's no heat at all in this severe cold weather in NorthEast. I've read a lot of posting here, some says it's the heater valve, FSU, cooling system flush etc.

This is what I did this morning, I check the heater valve and it's cold. I set the temperature to 60 F and switch to cold and cold air comes alright, then switch to 90 F and still cold air but not as cold as 60 F. Then change to 90 F and switch to heat and no air comes at all. Check the air at the cabin filter under the hood and it's cold. Finally, car temperature is cold just above the blue mark, never got to middle since Monday.

I need help now since I'm freezing in this brutal weather.

Thanks for you help!!!
Reply With Quote
Advertisement
  #2  
Old 01-25-2013, 05:37 AM
JKRIT JKRIT is offline
Officially Welcomed to the 'Fest
Location: Hollis, NH
 
Join Date: Feb 2008
Posts: 500
Mein Auto: '03 525i
Your last remark, that the engine temp only gets just above the blue mark, indicates that the thermostat is stuck open. I would start by changing that, keeping in mind the technique needed to bleed all the air out afterwards.
Reply With Quote
  #3  
Old 01-25-2013, 07:19 AM
doru's Avatar
doru doru is offline
Officially Welcomed to the 'Fest
Location: Calgary
 
Join Date: Sep 2007
Posts: 4,508
Mein Auto: 2003 530iA
Could be a bad auxiliary pump. Bottom left side (driver side) of the radiator.
Usually when this one goes out, there's no heat in the cabin.

To check: Open the expansion tank cap, car in "P", key in pos2, HVAC set to your normal heat comfort.
You should hear the coolant gurgling, and also see a stream of coolant (if it's topped off) coming from the upper snaked hose that sits on top of the radiator. If nothing happens, the pump is dead and needs replacing.

Good luck.
__________________
Looking for a DIY? Parts? Check this out, it might be your ticket
TMS underdrive pullies - Stewart WP - PSS9 - Beisan Vanos seals - Zimmerman cross-drilled & Akebono Euro - Deka 649 MF - 55w HID headlights - 35w HID foglights - Hualigan double din - ACS (rep) alu pedals - Euro central storage console - Breyton Magic Racing staggered wheels - M5 bumper - M5 steering wheel - Tint
Stable: e39, e53, e46 & Tribby
Reply With Quote
  #4  
Old 01-25-2013, 02:54 PM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
Heater not working

1999 528I - have the same problem with the added issue that the temp gauge is pegged all the way in the RED Don't know what to do or check.

Last edited by houckjf; 01-25-2013 at 02:56 PM. Reason: missing info
Reply With Quote
  #5  
Old 01-25-2013, 05:48 PM
Steve530 Steve530 is offline
Officially Welcomed to the 'Fest
Location: Knoxville, TN
 
Join Date: Dec 2007
Posts: 1,281
Mein Auto: 2001 530i
Start with checking the coolant level.
__________________
Steve
2001 530i/5 S+P CDV delete/Akebono ceramic pads
M5 SSK/RedLine MTL/M5 rear sway bar/Bilstein HD
OSRAM CBI

BMWCCA Member #337964
Reply With Quote
  #6  
Old 01-25-2013, 06:09 PM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
thanks for the rely but the coolant level is good
Reply With Quote
  #7  
Old 01-25-2013, 06:15 PM
Steve530 Steve530 is offline
Officially Welcomed to the 'Fest
Location: Knoxville, TN
 
Join Date: Dec 2007
Posts: 1,281
Mein Auto: 2001 530i
Did you check the water pump belt?
__________________
Steve
2001 530i/5 S+P CDV delete/Akebono ceramic pads
M5 SSK/RedLine MTL/M5 rear sway bar/Bilstein HD
OSRAM CBI

BMWCCA Member #337964
Reply With Quote
  #8  
Old 01-25-2013, 06:17 PM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
No I haven't will look at hat in the morning
Reply With Quote
  #9  
Old 01-26-2013, 05:25 AM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
checked water pump belt and it is good
Reply With Quote
  #10  
Old 01-26-2013, 05:30 AM
bmwoem1 bmwoem1 is offline
Regional Sponsor
Location: New York
 
Join Date: Jan 2013
Posts: 599
Mein Auto: X3
If the engine temp never gets to normal than you have a stuck thermostat.... I have the occasional plugged heater core, but I would change the thermostat first
Reply With Quote
  #11  
Old 01-26-2013, 07:44 AM
Steve530 Steve530 is offline
Officially Welcomed to the 'Fest
Location: Knoxville, TN
 
Join Date: Dec 2007
Posts: 1,281
Mein Auto: 2001 530i
Quote:
Originally Posted by houckjf View Post
checked water pump belt and it is good
First, as you know, severe engine damage can result when your engine overheats. So you need to address this issue immediately.

Second, I assume that the temperature gauge is operating normally. That is, it starts at the cold mark and moves toward the hot mark as the engine heats up.

With the symptoms you describe, no cabin heat and the temperature in the red, it appears that the coolant is not circulating through the engine. That could be because the thermostat has failed closed. Or maybe the water pump has failed and is not pushing water into the engine.

Either way, it appears that you need a cooling system overhaul. You should probably check the cylinder compression to assure there is no engine damage.
__________________
Steve
2001 530i/5 S+P CDV delete/Akebono ceramic pads
M5 SSK/RedLine MTL/M5 rear sway bar/Bilstein HD
OSRAM CBI

BMWCCA Member #337964
Reply With Quote
  #12  
Old 01-26-2013, 07:54 AM
jygesq jygesq is offline
Officially Welcomed to the 'Fest
Location: Bloomfield, CT
 
Join Date: May 2003
Posts: 1,255
Mein Auto: 2000 528 MT
replace thermostat first

if temp gauge if left of straight up, you thermostat is stuck open .
Reply With Quote
  #13  
Old 01-26-2013, 04:27 PM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
Thanks for the tips I really appreciate them will post what I find when its fixed and I'm no longer freezing my .......off driving to work lol
Reply With Quote
  #14  
Old 01-27-2013, 02:08 PM
the1t the1t is offline
Registered User
Location: uk
 
Join Date: Nov 2012
Posts: 10
Mein Auto: e39 525d
try changing the fsu, i had a similar problem and that fixed it.. the part is cheap and you can change it yourself in 10-15 mins.. you can pick one up with warranty from ebay
Reply With Quote
  #15  
Old 01-27-2013, 02:21 PM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
FSU? what is it and where is it located?
Reply With Quote
  #16  
Old 01-27-2013, 02:37 PM
the1t the1t is offline
Registered User
Location: uk
 
Join Date: Nov 2012
Posts: 10
Mein Auto: e39 525d
Final stage unit.. Its in the footwell on the right hand side.. If you type it in on you tube theres 10 videos on how to do it.. Guaranteed scratches on ur hands
Reply With Quote
  #17  
Old 01-27-2013, 04:28 PM
JKRIT JKRIT is offline
Officially Welcomed to the 'Fest
Location: Hollis, NH
 
Join Date: Feb 2008
Posts: 500
Mein Auto: '03 525i
Quote:
Originally Posted by the1t View Post
try changing the fsu, i had a similar problem and that fixed it.. the part is cheap and you can change it yourself in 10-15 mins.. you can pick one up with warranty from ebay
Changing the FSU brought your temp gauge down out of the red?
Reply With Quote
  #18  
Old 01-27-2013, 04:32 PM
the1t the1t is offline
Registered User
Location: uk
 
Join Date: Nov 2012
Posts: 10
Mein Auto: e39 525d
No but it fixed the problem with the hot and cold air.. Worth a shot for what it costs i reckon
Reply With Quote
  #19  
Old 01-27-2013, 05:18 PM
JKRIT JKRIT is offline
Officially Welcomed to the 'Fest
Location: Hollis, NH
 
Join Date: Feb 2008
Posts: 500
Mein Auto: '03 525i
houckjf may indeed have a dead FSU disabling cabin heat, but overheating a BMW I6 is a much more serious problem, as pointed out by Steve530. Houckjf should not be "driving off to work" that way.
Reply With Quote
  #20  
Old 01-27-2013, 05:37 PM
osikani osikani is offline
Registered User
Location: Bloomfield, NJ
 
Join Date: May 2008
Posts: 25
Mein Auto: 2000 528I
I changed the thermostat and heat is now back. Thanks guys, u r the best.
Reply With Quote
  #21  
Old 02-16-2013, 12:49 PM
houckjf houckjf is offline
Registered User
Location: New york
 
Join Date: Jan 2012
Posts: 12
Mein Auto: 1999 528i wagon
Thumbs up

thanks all for the advice, replaced thermostat and water pump now I got HEAT LMAO>>>>>
Reply With Quote
  #22  
Old 02-16-2013, 02:37 PM
Steve530 Steve530 is offline
Officially Welcomed to the 'Fest
Location: Knoxville, TN
 
Join Date: Dec 2007
Posts: 1,281
Mein Auto: 2001 530i
Glad you got it fixed.
__________________
Steve
2001 530i/5 S+P CDV delete/Akebono ceramic pads
M5 SSK/RedLine MTL/M5 rear sway bar/Bilstein HD
OSRAM CBI

BMWCCA Member #337964
Reply With Quote
  #23  
Old 02-16-2013, 02:50 PM
kmorgan_260 kmorgan_260 is offline
Officially Welcomed to the 'Fest
Location: Salem, WV
 
Join Date: Jul 2010
Posts: 750
Mein Auto: 1997 528i
Quote:
Originally Posted by jkrit View Post
your last remark, that the engine temp only gets just above the blue mark, indicates that the thermostat is stuck open. I would start by changing that, keeping in mind the technique needed to bleed all the air out afterwards.
+1
__________________

94 318I (Daughter's car), 96 740IL(current project), 97 528I(DD), 07 335I(Son's car)
Reply With Quote
Reply

Bookmarks


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 02:38 AM.


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