Simplest Maintainance Task Gone Wrong - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 04-23-2007, 11:51 PM
n00b
 
Join Date: Oct 2006
Location: USA
Posts: 42
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
R_F_L is on a distinguished road
(Thread Starter)
Simplest Maintainance Task Gone Wrong

OK, this is the second time this happens and I still don't believe it's happening. How complicated does flushing and adding coolant to an 89 e34 can be?!! I decided to clean out my radiator and re-adjust coolant/water ratio for the hot weather. I drained the old fluid, added some coolant, ran the engine and added the rest. I know I'm supposed to unscrew the plastic screw near the radiator cap and when the engine warms up, it should release all the extra air from the engine.

Well, after the engine warmed, vapor was being released from the little hole as supposed to. But suddenly the engine started over-heating and I had to turn it off. This is the second time it happens. The first time, I brought a mechanic to do it and all he did was take out the screw and add coolant until it shoots out from the hole. I did the same thing but still over-heating. Any advice?
R_F_L is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 04-24-2007, 06:02 AM
da_administrator
 
da_bull's Avatar
 
Join Date: Jan 2005
Location: Mooooossouri
Posts: 4,840
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute
Send a message via MSN to da_bull
On my 90 (M20, 2.5L) there is also a bleeder screw on the motor that is actually the highest point in the cooling system. This has to be bled too. Here is some info on cooling. Some good reading on this site also.



-There are 10 kinds of people. Those who understand binary, and those who do not.

-If we ever forget that we are One Nation Under God, then we will be a nation gone under...Ronald Reagan
da_bull is offline  
#3 (permalink) Old 04-24-2007, 10:30 AM
teh Canuck....eh
 
PhatCat's Avatar
 
Join Date: Aug 2006
Location: Calgary, Alberta
Posts: 3,613
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute PhatCat has a reputation beyond repute
Send a message via MSN to PhatCat
Quote:
Originally Posted by da_bull
On my 90 (M20, 2.5L)Here is some info on cooling...

?

All great things are simple, and many can be expressed in single words: freedom, justice, honor, duty, mercy, hope.
Sir Winston Churchill
PhatCat is offline  
#4 (permalink) Old 04-24-2007, 02:39 PM
cnn
Neutral Member
 
Join Date: Apr 2006
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
cnn is on a distinguished road
A few thoughts...

I'd drill a small hole in the thermostat.
Change all the belts, water pump etc., basically doing the ENTIRE cooling system overhaul.

E36 info is here:
Pelican Technical Article: BMW Thermostat Replacement

E39 is very similar, I wrote it up here:
ENTIRE COOLING SYSTEM REPLACEMENT Tips and Tricks (Very Long, Enjoy!)


HTH
98 528i
cnn is offline  
#5 (permalink) Old 04-24-2007, 09:24 PM
da_administrator
 
da_bull's Avatar
 
Join Date: Jan 2005
Location: Mooooossouri
Posts: 4,840
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute
Send a message via MSN to da_bull
Quote:
Originally Posted by PhatCat
?
lol what???

so i forgot the link...

BMW E34 Website



-There are 10 kinds of people. Those who understand binary, and those who do not.

-If we ever forget that we are One Nation Under God, then we will be a nation gone under...Ronald Reagan
da_bull is offline  
#6 (permalink) Old 05-31-2007, 11:12 PM
n00b
 
Join Date: May 2007
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
anthon is on a distinguished road
I'm preparing for a nice coolant system flush too. Here are some tips that might be helpful...
* Check hoses for wear, bulging, cracks or brittleness.
* Check hose clamps if theyre broken, stripping, or worn out.
* Replace your radiator cap cheap insurance for maintaining correct cooling system pressure.
* Check or replace your belt if it hasnt been done in a while, its a great time to change it.
* Check your tensioner, and idler pulleys for bearing noise or failure

But before that I would like to know easy ways on removing and installing bmw water pump.
anthon is offline  
#7 (permalink) Old 01-04-2010, 09:41 PM
n00b
 
Join Date: Jan 2010
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
davido is on a distinguished road
bleeding

i had same problem these engines can be a bit of a bitch to bleed you get air locks in the engine block try following witch worked for me first of all jack up car at front as high as poss remove the radiator top hose and fill it with water with engine ticking over keep filling till it does not take any more recconect and reblead with engine running till you get a steady stream of water out of plastic bleed screw then retighten you may have to do this more than once to get rid of air locks be careful not to let water temp go into red as can blow head gasket regards david in u.k
Quote:
Originally Posted by R_F_L View Post
OK, this is the second time this happens and I still don't believe it's happening. How complicated does flushing and adding coolant to an 89 e34 can be?!! I decided to clean out my radiator and re-adjust coolant/water ratio for the hot weather. I drained the old fluid, added some coolant, ran the engine and added the rest. I know I'm supposed to unscrew the plastic screw near the radiator cap and when the engine warms up, it should release all the extra air from the engine.

Well, after the engine warmed, vapor was being released from the little hole as supposed to. But suddenly the engine started over-heating and I had to turn it off. This is the second time it happens. The first time, I brought a mechanic to do it and all he did was take out the screw and add coolant until it shoots out from the hole. I did the same thing but still over-heating. Any advice?
davido is offline  
#8 (permalink) Old 01-04-2010, 09:51 PM
n00b
 
Join Date: Jan 2010
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
davido is on a distinguished road
Quote:
Originally Posted by davido View Post
i had same problem these engines can be a bit of a bitch to bleed you get air locks in the engine block try following witch worked for me first of all jack up car at front as high as poss remove the radiator top hose and fill it with water with engine ticking over keep filling till it does not take any more recconect and reblead with engine running till you get a steady stream of water out of plastic bleed screw then retighten you may have to do this more than once to get rid of air locks be careful not to let water temp go into red as can blow head gasket regards david in u.k
n.b have you also checked stat as if this does not open then engine cannot cool because water is staying only in block &not circulating.
davido is offline  
#9 (permalink) Old 01-04-2010, 10:00 PM
drz
Administrator
 
drz's Avatar
 
Join Date: Dec 2004
Location: Tee Ex
Posts: 12,129
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute
Send a message via AIM to drz Send a message via MSN to drz
This thread is almost three years old. Now closed.

drz is offline  
Sponsored Links
Advertisement
 
Closed Thread

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome