1997 328i Coolant Leak and Maintenance - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

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.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 10-10-2005, 08:19 PM   #1 (permalink)
Neutral Member
 
Larry Horne's Avatar
 
Join Date: Mar 2005
Location: VA
Car: 1997 328i
Posts: 72
Photos:
Larry Horne is an unknown quantity at this point
Question 1997 328i Coolant Leak and Maintenance

My 328i has a coolant leak at the T-stat housing AGAIN. Shop repaired twice with replacing the housing with a metal one last time. I'm going to replace it this time myself.

I also had to have the radiator replaced last August. I've noticed they used bright green rad fluid this time. Any chance the replacement radiator can use the green stuff without damage?

Questions:
1) Anything I should do when I have the T-stat housing off?
2) is green fluid ok in replacement radiator?
Larry Horne is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-11-2005, 05:21 AM   #2 (permalink)
3rd Gear Member
 
WarNox's Avatar
 
Join Date: Aug 2004
Location: Auckland, New Zealand
Car:
Posts: 780
Photos:
WarNox is an unknown quantity at this point
when i had my whole cooling system fixed i looked around and read in more than once place that alluminium housing isnt any better than plastic really! my car has green fluid in it now too, seems ok, even though i think proper bmw coolant is blue! but everything runs ok, if u ask bmw they'll probably tell u to use the proper stuff due to some sort of corosion or something, but for now its all good!

hope it somehow helps...
__________________
<img src='http://www.geocities.com/thereisnothinglikeabmw/mycar1.jpg' border='0' alt='user posted image' />
WarNox is offline   Reply With Quote
Old 10-11-2005, 06:29 AM   #3 (permalink)
1st Gear Member
 
Dudesky_E36's Avatar
 
Join Date: Jul 2005
Location: Jersey City, NJ
Car: Anthracite e39 530iA
Posts: 241
Photos:
Dudesky_E36 is an unknown quantity at this point
Send a message via AIM to Dudesky_E36
There's no difference between the plastic and aluminum housings; except that the plastic ones can crack with age at the openings where your upper & lower radiator hoses attach. That's the only reason why aluminum is better.

Larry, the shop may have done the procedure incorrectly if you keep leaking. First, the thermostat has an arrow on the edge that should point upwards when installed. Make sure you lube the thermostat & housing gaskets with coolant, don't just stick them in dry. Lastly, the bolts should be tightened to the proper torque, no more, no less, or the gasket will not seat or seal properly. Engine lift bolt (the big one) should be 17 ft-lb, and the remaining bolts should be 89 in-lbs.

As for the coolant, you really should be using the blue BMW stuff if you want the motor to last. The green stuff contains phosphates which cause pitting and corrosion on the alloy engine block over time. There are some brands that have similar properties as BMW's coolant, but I've yet to see a general consensus as to whether they really are safe to use.

Hope this helps and good luck!
__________________
Dudesky_E36 is offline   Reply With Quote
Old 10-11-2005, 10:00 AM   #4 (permalink)
Neutral Member
 
Larry Horne's Avatar
 
Join Date: Mar 2005
Location: VA
Car: 1997 328i
Posts: 72
Photos:
Larry Horne is an unknown quantity at this point
I thank you for the advice. I think the COA is to drain and flush the system, install new gaskets on the housing and refill with BMW OEM fluid.

Lar
Larry Horne is offline   Reply With Quote
Old 10-15-2005, 07:45 PM   #5 (permalink)
Neutral Member
 
Larry Horne's Avatar
 
Join Date: Mar 2005
Location: VA
Car: 1997 328i
Posts: 72
Photos:
Larry Horne is an unknown quantity at this point
OK I have the car torn apart. Everything off up to the front of the block. Plugs, fan, shroud, idler pullies, belts, air box, pre air valve ALL OFF,


Does anyone know how to test the valve on the pre air blower? Its the round black fan motor on passeger side fender well that pushes air thru a valve into the engine. ITs the valve I need to test.

lar

Last edited by Larry Horne; 10-16-2005 at 08:08 AM. Reason: new information
Larry Horne is offline   Reply With Quote
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)
 
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 05:07 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.