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DISCUSSION => Engine + Driveline => Topic started by: CrusherCurtis on July 09, 2009, 07:30:24 PM

Title: Engine leaking coolant
Post by: CrusherCurtis on July 09, 2009, 07:30:24 PM

My Engine is leaking coolant from some place weird.  Its not one of the 2 main hoses or the radiator.  It looks like its coming from someplace underneath the intake manifold.  Where could this leak be coming from.  I have a 91 e30 with an m42 head and block from 95.  I'm praying its not a cracked cylinder head.  :confused:

Title: Engine leaking coolant
Post by: stereomotional on July 09, 2009, 09:23:13 PM

most likely your coolant flange under the intake.  its easy, and i believe either german autoparts or pelican parts has them in stock.  mine was cracked a few months ago and its about an hour or so to change it

Title: Engine leaking coolant
Post by: stereomotional on July 09, 2009, 09:25:02 PM

here you go...again....if thats whats wrong

http://www.germanautoparts.com/BMW/1991/E30318M/C2/8042/5920286

Title: Engine leaking coolant
Post by: DesktopDave on July 09, 2009, 09:56:46 PM

You also have a few coolant hoses that connect to the throttle body heater blocks.  Check them out here:

http://www.m42club.com/forums/showthread.php?t=2742&highlight=coolant

Do the hose delete...especially if you live in a warmer area of the world...you'll be happy you did.

Title: Engine leaking coolant
Post by: melloh on July 10, 2009, 03:27:00 PM

Second the hose delete.  Ij ust finished it.

BUT, if you don't want to and need replacement hoses, you can have mine.  Just pay shipping.  I bought new oem hoses and never used them b/c I did the delete.