» Site Navigation | | » Recent Threads | OMG!OMG! Today 08:53 AM Today 08:53 AM 0 Replies, 143 Views | | My 318ti build 05-21-2024 04:48 PM 05-21-2024 04:48 PM 0 Replies, 1,479 Views | | | | | | 01-14-2011, 08:44 PM | #31 | Senior Member Join Date: Oct 2008 Location: Los Angeles, CA Posts: 1,464 | Quote: Originally Posted by dave45056 It's probaby the easiest heater core to change. | You've obviously never changed a heater core on a 1960's-early70's vintage GM A-body car... 20 min. job- tops. (j/k) Dave, in one of your subsequent posts you allude to the M42 not having that seemingly pesky plastic Y-pipe that is located in the rear of the cylinder head- is that correct? I am going to do a cooling system overhaul soon and the thought of having to replace that pipe (based on others' experience on this board) was starting to make me nervous. The RealOEM diagram does not seem to show it- I just wanted to make sure that was correct. (assuming that the RealOEM diagram is for an M42, not M44). Thanks for any help. | | | 01-14-2011, 11:08 PM | #32 | Senior Member Join Date: Apr 2006 Location: Oxford, Ohio Posts: 868 | You are correct... M42 engines don't have the plastic y-fitting at the back of the head but m44 engines do. The other plastic fitting located under the intake manifold is the same for m42 and m44 engines though. | | | 01-15-2011, 12:07 AM | #33 | Senior Member Join Date: Oct 2008 Location: Los Angeles, CA Posts: 1,464 | Thanks for the clarification. I was aware of the one under the intake manifold, but an intake removal seems like a much easier job. | | | 05-16-2012, 04:14 PM | #34 | Junior Member Join Date: May 2010 Location: canada Posts: 16 | Can u give me the procedure of taking the heater core out please | | | 01-12-2013, 01:58 PM | #35 | Junior Member Join Date: Jan 2013 Location: UK Posts: 1 | Hi there, i have removed my heater core but i am stuck on how to remove the old pipes. I have loosened the nut from the engine side and the pipe is moving around, but when i pull the matrix pipes it does not come out completely as it gets stuck in the firewall. Can anyone help me with this please. | | | 05-13-2014, 05:36 AM | #36 | Junior Member Join Date: Mar 2012 Location: Whittier, California Posts: 3 | help with 318ti Quote: Originally Posted by dave45056 No, There is no need to remove the dash. Just remove the kick panel on the drivers side, along with the knee bolster. You also need to remove the center console, the air pipe under the dash, and the cowl under the hood. It's probaby the easiest heater core to change. I'll send you some pics if you PM your e-mail. | Was wounding if you can send me the pictures of this procedure, thank you very much. | | | 05-13-2014, 05:37 AM | #37 | Junior Member Join Date: Mar 2012 Location: Whittier, California Posts: 3 | Can you please send me the pictures of this procedure, thank you very much. | | | 05-13-2014, 05:38 AM | #38 | Junior Member Join Date: Mar 2012 Location: Whittier, California Posts: 3 | | | | 01-13-2015, 02:46 AM | #39 | Senior Member Join Date: May 2009 Location: Orange County, CA Posts: 2,019 | thanks for all the info guys! Imma be doing this soon to my Ti.! __________________ V2 in progress. Volkswagen MK6 GTI | | | 02-01-2017, 10:33 AM | #40 | Junior Member Join Date: Dec 2016 Location: Greece Posts: 3 | Thanx for this thread!! Lots of info , im about to repair my heater core ,basicly to put a new one , my father has already bypassed it some years ago! | | | 02-27-2019, 12:46 AM | #41 | Senior Member Join Date: Apr 2007 Location: Elizabeth City, NC Posts: 3,877 | So after 21 years my 1998 ti finally needed the heater core replaced. If anyone wants specific photos let me know and I'll get some while everything is apart. I got it out today and found that the core itself is not leaking but the four o-ring connections under the dash were all leaking. The o-rings were very deformed and hard when I took the old core apart. My plastic pipes at the firewall are extremely discolored but not broken, those o-rings were also in poor shape. You'll need a torx T20, 10mm, and 8mm to get most of screws for the heater pipes apart. These plugs came with the new heater core to minimize spills while removing the old one. Can also be used to hold some coolant in the core while you re-install. Here's where the foam strips go, thin strip under the pipe connection end and the two thick strips run down the long sides of the core front/back. Once all the hardware is removed these pipes need to be pulled into the engine bay a bit to get the lower connection apart. __________________ ~Dave~ 98 328ti Morea Grun slicktop 11 128i space gray slicktop 13 JGC WK2 Deep Cherry Search | RealOEM | | | 07-08-2021, 01:10 AM | #42 | Senior Member Join Date: Sep 2006 Location: Greeley CO Posts: 233 | Regarding the plastic pipes at the firewall, PN 64118391141, pictured in post #14: After removing the single nut, there is also a retaining tab that is difficult to see, as it interfaces with the upper edge of the part. The retaining tab needs to be lifted to free the part. Also, the ridiculously overpriced orings (64118379131) that BMW sells, are 13/16" ID, 1" OD, and 3/32" cross section. $0.69 each at my local hardware, but if you buy 100, they run about 6 cents each. The oring is formally known as an AS568A-117. And regarding the rubber "grommet" that the two plastic pipes protrude through; mate these parts before attempting to install the plastic pipes. Last edited by paul somlo; 07-15-2021 at 02:34 AM. | | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |