Overheating Issue =/ - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

Reply
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 03-10-2010, 01:32 PM
1st Gear Member
 
BrianXE36's Avatar
 
Join Date: Aug 2009
Posts: 265
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BrianXE36 is on a distinguished road
(Thread Starter)
Exclamation Overheating Issue =/

I've encountered a recent overheating issue that has left my car undrivable for over a week now. I've replaced a hose, thermostat, and water pump. Checked for head-gasket issues (there were none). Fan and fan clutch are functional and it still overheats. The part that gets me puzzled is when the thermostat opens up and lets the coolant hit the radiator, the hose leaving the radiator is cold. My first thought was "clogged radiator" I tested that theory by inserting a garden hose into the top inlet to the radiator and checking for water escaping from the bottom outlet, and it did at the same speed it entered. So as of right now I've darn near replaced the whole cooling system and it still isn't functioning as it's supposed to. I've got a 1997 328i

Quote:
Originally Posted by johnnybayonne View Post
I eat, sleep, & breathe BMW
BrianXE36 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 03-10-2010, 07:55 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
Does teh auxiliary fan come on when it is supposed to?

Did you bleed teh air out of teh system?

drz is offline  
#3 (permalink) Old 03-10-2010, 08:46 PM
1st Gear Member
 
BrianXE36's Avatar
 
Join Date: Aug 2009
Posts: 265
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BrianXE36 is on a distinguished road
(Thread Starter)
I've got no aux fan I busted it in my accident but I just filled the system with coolant, let it run, filled again, let it run, ect. I don't know what "bleeding the system" is.

Quote:
Originally Posted by johnnybayonne View Post
I eat, sleep, & breathe BMW
BrianXE36 is offline  
#4 (permalink) Old 03-10-2010, 09:15 PM
OMFG another one!?
 
witeshark's Avatar
 
Join Date: Aug 2004
Location: Miami FL
Posts: 14,698
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice
Bleeding is removing all the trapped air.

BMW

Sig by zeaq
witeshark is offline  
#5 (permalink) Old 03-10-2010, 09:20 PM
Ich bin der Modifikator
 
johnnyBgood's Avatar
 
Join Date: Sep 2007
Location: Bayonne, NJ
Posts: 3,325
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
johnnyBgood is a jewel in the rough johnnyBgood is a jewel in the rough johnnyBgood is a jewel in the rough
Garage
Quote:
Originally Posted by BrianXE36 View Post
I've got no aux fan I busted it in my accident but I just filled the system with coolant, let it run, filled again, let it run, ect. I don't know what "bleeding the system" is.






10) It really helps to have a friend lend a hand by sitting in the car revving the motor and keeping an eye on the temp gauge. Start off by removing the coolant reservoir cap and the plastic bleeder screw right next to it. Fill the coolant reservoir with a 50/50 mix of coolant and distilled water. Have your friend start the car, turn on the heater to full hot on the vent position and rev the motor to about 2500 RPM, if the temp gauge goes past the 12 o'clock position, shut the motor off, let it cool down and start over again. Watch the coolant reservoir, as the engine warms up the coolant level should drop, refill as the coolant is sucked out of the reservoir. Watch the bleeder screw hole also, when coolant with no air bubbles begins to overflow then you're almost done. It's a good idea to have some paper towels handy to mop up any overflow. Screw the bleeder screw back in (be careful to not break the plastic screw) and continue to rev the motor, you should see a continuous stream of coolant spraying in to the reservoir from the small hole at the top. Continue letting that spray in to the reservoir while your friend revs the motor for a couple of minutes, until the gauge hits the 12 o'clock mark, to ensure any remaining air is gone. If the heater is blowing hot air when you're revving the motor AND when the engine is at idle then your cooling system is properly bled. If your vents are blowing cool air at idle then you still have air in the system, try revving the motor more and/or squeeze the radiator hoses to help dislodge any trapped air. Once your system is fully bled, top off the reservoir and replace the cap. Check the coolant level in a day or two and top off as needed.


jb
Attached Thumbnails
Click image for larger version

Name:	BleedScrewTank.jpg
Views:	678
Size:	58.2 KB
ID:	29000  

______________________________________
_______________________97 E36|Conforti Software|M50 Manifold|AFE|Borla|H&R| Bilstein |Eibach|Rockford|3.15 LSD
____________________________________________http://www.cardomain.com/ride/3129109
johnnyBgood is offline  
#6 (permalink) Old 03-10-2010, 11:24 PM
1st Gear Member
 
BrianXE36's Avatar
 
Join Date: Aug 2009
Posts: 265
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BrianXE36 is on a distinguished road
(Thread Starter)
Thanks for the detailed response JB! This stupid issue has plagued me for days now I'll have to give it a try tomorrow, thanks so much for your help guys!

Quote:
Originally Posted by johnnybayonne View Post
I eat, sleep, & breathe BMW
BrianXE36 is offline  
#7 (permalink) Old 03-11-2010, 03:53 AM
1st Gear Member
 
Join Date: Jun 2008
Location: isle of wight, englandshire
Posts: 121
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dudehog is on a distinguished road
just a hint try and do it on a slope with the front of the car higher. i didn't, thought it was bled, drove off and overheated. one engine destroyed.
dudehog is offline  
#8 (permalink) Old 03-21-2010, 02:56 PM
n00b
 
Join Date: Jul 2009
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
zeroseries is on a distinguished road
FYI - just finished using this procedure on my friends '02 320i and it worked well. Got all the air out and he's got heat again.

Thanks.
zeroseries is offline  
#9 (permalink) Old 03-21-2010, 04:33 PM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
Quote:
Originally Posted by zeroseries View Post
FYI - just finished using this procedure on my friends '02 320i and it worked well. Got all the air out and he's got heat again.

Thanks.
There will be times when you encounter a stubborn air pocket in your system that will just not purge, and a one time bleed is not enough.

Do the bleed when you load the coolant. Start your engine and let it warm up to where u see the engine temps rise to normal. then bleed again.

There were times i have had to bleed 6 times to get it right. But squeezing on the radiator hoses while bleeding will help to purge out the air.

lotsa' luck
darkhorse737 is offline  
#10 (permalink) Old 03-21-2010, 04:35 PM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
Quote:
Originally Posted by BrianXE36 View Post
I've got no aux fan I busted it in my accident but I just filled the system with coolant, let it run, filled again, let it run, ect. I don't know what "bleeding the system" is.
NO AUX FAN???

-better install one A.S.A.P. it was placed there for a cooling reason ;-) the absence of which definitely results in overheat.
darkhorse737 is offline  
#11 (permalink) Old 05-01-2010, 08:41 PM
n00b
 
Join Date: Jan 2010
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tahseen is on a distinguished road
so far bled threee times and still overheating. Will keep on trying.
tahseen is offline  
#12 (permalink) Old 05-02-2010, 07:29 AM
n00b
 
bmw_tibbzy's Avatar
 
Join Date: Oct 2008
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
bmw_tibbzy is on a distinguished road
have you tryed the water pump inside the water pump not all (most) their are plastic finns after time they get weak and break off not allowing the water to circulate the water pump i recon easy job to do yourself
bmw_tibbzy is offline  
#13 (permalink) Old 05-02-2010, 09:22 AM
n00b
 
Join Date: Jan 2010
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tahseen is on a distinguished road
overheating

was changed to a metal water pump not too long ago,thanks for the reply
tahseen is offline  
#14 (permalink) Old 05-03-2010, 01:14 PM
n00b
 
Join Date: Jan 2010
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tahseen is on a distinguished road
upper hose is hot lower is warm!! any comments PLZ
tahseen is offline  
#15 (permalink) Old 05-03-2010, 02:25 PM
OMFG another one!?
 
witeshark's Avatar
 
Join Date: Aug 2004
Location: Miami FL
Posts: 14,698
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice
Still some trapped air most likely.

BMW

Sig by zeaq
witeshark is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


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



Similar Threads
Thread Thread Starter Forum Replies Last Post
Overheating Please Help Serge88 3-Series (E36) 3 07-25-2009 03:03 AM
E36 318i overheating and not overheating !!?? lucky178tb 3-Series (E36) 7 07-20-2009 07:16 PM
Roof issue red light flashing! (and Sat Nav issue too!) doopranal Z3 / Z4 /ZM 0 03-24-2009 06:25 AM
Overheating. Brian325i 3-Series (E36) 3 11-02-2004 02:44 PM
OVERHEATING ISSUE 92 325ci 456789PSW 3-Series (E21, E30) 6 10-25-2003 05:45 PM

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