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 01-29-2013, 05:10 AM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
overheating and other questions thanks for help

Good morning all my name is Matt I have a 1998 BMW 528i and for a lil while now my car has been overheating I check the internal temp through the cluster and it does not seem to fluctuate with the temp gauge. So my question is what should my internal (on cluster test 7 ) read. The needle seems to shoot up slow but when I sit for just a few mins it drops down very fast and I doubt the engine is cooling off that quick. I was driving with ( test 7 ) on cluster an it was reading 130-140 when I put car into sport and accelerate the temp Gage will rise but my internal ( test 7 on cluster) will stay right between 130- 140 any ideas need to get this fixed as I only have one vehicle now and need both. Thanks for your time and knowledge.


Matt
Reply With Quote
Advertisement
  #2  
Old 01-29-2013, 05:26 AM
dtadrian's Avatar
dtadrian dtadrian is offline
BMW's are like women. $$$
Location: miami
 
Join Date: Jul 2012
Posts: 428
Mein Auto: 1999 BMW 528i T Wagon
What engine do you have. Is that temp your reporting in Celsius ?
Reply With Quote
  #3  
Old 01-29-2013, 05:49 AM
Fudman's Avatar
Fudman Fudman is offline
Officially Welcomed to the 'Fest
Location: Sudbury, MA
 
Join Date: Apr 2007
Posts: 6,256
Mein Auto: '02 530i Sport auto
You have incorrect temp readings. See this thread:

http://www.bimmerfest.com/forums/sho...ht=engine+temp

Your problem is similar to this thread:

http://www.bimmerfest.com/forums/sho...ht=engine+temp
Reply With Quote
  #4  
Old 01-29-2013, 05:52 AM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
2.8l and I'm not sure if its f or c that's what I am curiouse about because I called a shop and he said that the thermostate is supposed to open right around 198 degrees and all the thermostates I see say 98 or 88 degrees I am new to the BMW scene but I am going to continue to drive and buy them untilled I learn all I can. Thanks for your help.
Reply With Quote
  #5  
Old 01-29-2013, 06:03 AM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
I believe it is in celcius. What should operating temp be at celcius and f
Reply With Quote
  #6  
Old 01-29-2013, 06:06 AM
Fudman's Avatar
Fudman Fudman is offline
Officially Welcomed to the 'Fest
Location: Sudbury, MA
 
Join Date: Apr 2007
Posts: 6,256
Mein Auto: '02 530i Sport auto
Quote:
Originally Posted by mcsimon View Post
I believe it is in celcius. What should operating temp be at celcius and f
Read the first thread I referenced!
Reply With Quote
  #7  
Old 01-29-2013, 06:41 AM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
K thanks I started the car and believe my cars operatingtemp is 90 c it warmed up and hovered there for about 5 mins then started to creep over 100 so I am defray overheating got a new fan clutch andaux fan coming thanks for the info
Reply With Quote
  #8  
Old 01-29-2013, 07:48 AM
bkgreene39's Avatar
bkgreene39 bkgreene39 is offline
Officially Welcomed to the 'Fest
Location: Brooklyn
 
Join Date: Aug 2011
Posts: 464
Mein Auto: 1998 BMW 528i
I would not throw parts at it, at least not right away. Check to see for any leaks. Bleed the system first. Aux fan is not a necessity on the 98 model, it is however needed for when using AC. If you cooling system is functioning without any overheat the AUX fan is useless.
__________________
"And if you no longer go for a gap that exists, you are no longer a racing driver because we are competing, we are competing to win."-Senna
Reply With Quote
  #9  
Old 01-29-2013, 07:57 AM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
I litterally just bled the system and so far no overheating. Afraid to take it on a long trip yet but maybe I will give it a shot later thanks guys. I still have the fan clutch and auxiliary fan coming
Reply With Quote
  #10  
Old 01-29-2013, 09:03 AM
cn90 cn90 is offline
Officially Welcomed to the 'Fest
Location: Omaha NE
 
Join Date: Mar 2006
Posts: 12,913
Mein Auto: 1998 528i 5-sp 140K+
Whatever you do, check old service records and consider a "cooling overhaul" before the engine is literally cooked to death.
Reply With Quote
  #11  
Old 01-29-2013, 01:44 PM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
Motor has like 80 k just put in bought from pa any idea if I can look up records with the motor Vin? Thanks again


Matt

Last edited by mcsimon; 01-29-2013 at 04:44 PM.
Reply With Quote
  #12  
Old 01-30-2013, 02:27 PM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
K overheating has stoped took the vehicle out for a half hour fortyfive min drive today and it wasn't overheating but when I got out to check under the hood I realized that the inlet and the outlet hoses from the radiator were really hard is this normal or no? Any input is greatly appreciated thanks to everyone
Reply With Quote
  #13  
Old 01-30-2013, 03:27 PM
Bwood1 Bwood1 is offline
Officially Welcomed to the 'Fest
Location: Austin, TX
 
Join Date: Aug 2009
Posts: 124
Mein Auto: 1999 528i, 2002 540i
Those two hoses are usually very pliable and you should be able to squeeze them easily. If you decide to replace them, they may be very difficult to remove. Since they attach to other plastic parts, you can't be too rough with them. I generally rock them back and forth slightly and up and down slightly. Sometimes you can put a very little pressure with a screw driver to try and wedge them off. My indie said they have started using a silicone lubricant (lilke swimming pool gasket lube) on all their plastic parts to help them go on easier and come off easier. Just be gentle but firm.
Reply With Quote
  #14  
Old 01-30-2013, 04:52 PM
mcsimon mcsimon is offline
Registered User
Location: oneonta
 
Join Date: Jan 2013
Posts: 45
Mein Auto: 528i e39
Question is y would they b hard I am assuming thermostate is opening because there was no everheating same with water pump if either of these were not working I think it would overheat especially considering it was 55-60 degrees here today and the majority of that drive was between 30- 50 MPH getting on her now and then of course any ideas greatly appreciated thanks

Matt
Reply With Quote
  #15  
Old 01-30-2013, 10:06 PM
16valex's Avatar
16valex 16valex is offline
Officially Welcomed to the 'Fest
Location: Albany NY
 
Join Date: Jul 2004
Posts: 2,631
Mein Auto: 530I/5SC 97-528/5
You almost toasted your engine thanks goodness 130-140C was way too hot. Your M52 engine is designed to run at around 93C.

Can you tell me what is the operating temp now from test 7?

I think you should at the least replace the thermostat, water pump and brand new radiator if they're all original.

Don't feel bad spending this money it's very well worth it.
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 10:01 PM.


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