Possible Coolant Leak? (PIC) - E46Fanatics E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

Thread Tools Search this Thread Rate Thread Display Modes
Old 11-25-2011, 03:41 PM   #1
Registered User
Join Date: Apr 2010
Location: Bloomington, IL
Posts: 13
My Ride: '05 M3 ZCP IB
Possible Coolant Leak? (PIC)

So I've had my M3 for about a month or two now.
When I first got it I found this same spattering when I was washing it.
I decided to wash it off and see if it comes back, well it's back.
It looks like something is leaking coolant and its getting flung around by the pulley maybe?
Any help would be much appreciated!


Hoobie7 is offline   Reply With Quote
Old 11-25-2011, 03:53 PM   #2
Registered User
Join Date: Aug 2009
Location: Ontario Canada
Posts: 966
My Ride: 1999 328i (M54b30)
Waterpump, expansion tank, hose. Those would be the first places I would look.
jared_wiesner is offline   Reply With Quote
Old 11-25-2011, 04:00 PM   #3
Registered User
dmax's Avatar
Join Date: Aug 2006
Location: NJ
Posts: 23,927
My Ride: '99 328i 340K miles
Clean it up again. Get car to op temp (after making sure your coolant level is correct...don't overfill...stay below the max level), and then look with a good led flashlight while the car is running.

I think the ET is over on the right side of your engine, so think we're dealing more with something like bleeder screw, upper radiator hose. I don't think that's splatter from the pullies. I think that's coolant mist that dried as a fine dust...coming from a very tiny hole somewhere and being sprayed out like from an aerosol can.

Though, in looking at that line of spray on your airbox, it does seem like some of it is getting spread out from the pulleys...so Therm is actually more likely than WP, since I don't think you have a belt below where the wp would leak from...but I could be wrong about that.
Appearing Friday, Jan. 13 at Greenwich Village Comedy Cub, 99 Macdougal St., NYC, 6 p.m.

Please view this vid so it looks like I'm popular. Please! https://youtu.be/995gLmVEVZk

dmax on Facebook

Mangofy your E46!

Last edited by dmax; 11-25-2011 at 04:03 PM.
dmax is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is OFF

All times are GMT -5. The time now is 01:10 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - VerticalScope Inc. All rights reserved.