318ti.org forum

Go Back   318ti.org forum > Technical, Maintenance and Modifications > HVAC

Notices

HVAC Heating, ventilation and air conditioning.

.
» Recent Threads
The 318ti OBD-II engine...
10-19-2006 06:48 PM
Last post by J!m
Yesterday 11:15 AM
163 Replies, 139,331 Views
Black 1998 Ti
09-19-2021 07:37 PM
Last post by samulis
09-19-2021 07:37 PM
0 Replies, 175 Views
What model ti do you own?
02-26-2003 03:40 AM
Last post by samulis
09-19-2021 07:21 PM
341 Replies, 175,439 Views
Underbody panels
09-18-2021 02:33 PM
Last post by StoneWheelRacing
09-18-2021 02:45 PM
1 Replies, 287 Views
Ultimate Supercharger...
06-23-2019 08:06 AM
Last post by MisterM52
09-16-2021 08:40 PM
130 Replies, 220,337 Views
WTB: S50/S52 swapped or...
08-29-2021 04:22 PM
Last post by ZEK
09-15-2021 06:59 PM
6 Replies, 1,655 Views
Running rough
09-13-2021 02:37 PM
Last post by ti-billy
09-13-2021 02:37 PM
0 Replies, 528 Views
What Bolt size for 6Cyl...
09-12-2021 07:53 PM
Last post by ZEK
09-12-2021 07:53 PM
0 Replies, 418 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 03-25-2009, 04:25 PM   #1
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default Heater Core

I have a 95 ti and I smell a little coolant in the passenger compartment. No wetness in on the floor... yet.
I am thinking the culprit it either the tubes going to the heater core, ore the heater core itself.
Anyway when looking into the parts on realoem, it mentions a part number difference for the twin tubes (item 2) between a plastic water box or an aluminum water box.
Anyone know what bmw put in the ti?

http://www.realoem.com/bmw/showparts...63&hg=64&fg=15
dave45056 is offline   Reply With Quote
Old 03-28-2009, 12:21 AM   #2
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

Has anyone ever changed their heater core before?
dave45056 is offline   Reply With Quote
Old 03-28-2009, 12:43 AM   #3
autoxerwgn
Member
 
Join Date: Jan 2007
Location: Plymouth Meeting, PA
Posts: 56
iTrader: (0)
Default

I replaced a heater core on a customer's ti a long time ago but I remember that it's a pretty easy job to do. If I remember correctly, you need to remove the panel above the pedals and you should be able to see the tubes that run from the firewall area to the heater core. You can remove the tubes and then the heater core just slides out towards the driver's side of the dash. (Don't forget to drain the coolant first!)

You're lucky it's a ti, otherwise you would have to remove the entire dash and disassemble the heater box to access it!
__________________
Philadelphia Region SCCA
Autocross/Rallycross
97 M3ti
11 Jetta Sportwagen TDI
94 Mazda Miata R
autoxerwgn is offline   Reply With Quote
Old 03-30-2009, 05:09 PM   #4
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

I dug into my dash to see if I can see what's going on. The tubes and end of the core look brand new.


So I guess the problem is in the core itself.
If you have any pointers how to get the thing out, I'd sure appreciate it. There is a duct in the way and it looks like I need to remove some of the center console, too.
dave45056 is offline   Reply With Quote
Old 09-01-2009, 03:56 AM   #5
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

Does anyone know the part number for the heater core shown above? I need to get this fixed soon! I'm not sure if this is what is called an aluminum water box heater core or not.
dave45056 is offline   Reply With Quote
Old 09-03-2009, 05:29 PM   #6
autoxerwgn
Member
 
Join Date: Jan 2007
Location: Plymouth Meeting, PA
Posts: 56
iTrader: (0)
Default

Look here:
http://www.realoem.com/bmw/showparts...63&hg=64&fg=15

It would seem like you need part number 1, which is supposed to be replaced along with the tubes, o-ring, and a radiator cap.
__________________
Philadelphia Region SCCA
Autocross/Rallycross
97 M3ti
11 Jetta Sportwagen TDI
94 Mazda Miata R
autoxerwgn is offline   Reply With Quote
Old 09-03-2009, 05:31 PM   #7
spidertri
Senior Member
 
spidertri's Avatar
 
Join Date: Apr 2007
Location: Elizabeth City, NC
Posts: 3,877
Vehicles
iTrader: (9)
Default

I think he knows that, he posted that link in the OP. The question is which number 1 to go with?

Sorry I can't help Dave, bump for someone who can.
__________________
~Dave~

98 328ti Morea Grun slicktop
11 128i space gray slicktop
13 JGC WK2 Deep Cherry

Search | RealOEM
spidertri is offline   Reply With Quote
Old 09-04-2009, 06:58 PM   #8
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

Maybe someone can take a look at their heater core... especially if it has a build date after 9/96. I am curious if the part the tubes plug into is plastic on later models.
Also if someone has had a new heater core installed, can you take a pic of that, too? It's easy to do. Just remover the drivers side kick panel and you can see what I took pics of in my previous post.
Thanks in advance.
dave45056 is offline   Reply With Quote
Old 09-06-2009, 09:16 PM   #9
campaiar
Senior Member
 
Join Date: Jan 2006
Location: Cincinnati
Posts: 890
iTrader: (0)
Default

Dave here are a few shots of mine. Looks like a design change took place. My build date is 10/97.



__________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs
campaiar is offline   Reply With Quote
Old 09-07-2009, 03:55 PM   #10
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

Yes indeed. This helps alot. Thanks Anthony.
dave45056 is offline   Reply With Quote
Old 09-26-2009, 10:03 PM   #11
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

Well I have started taking out my heater core. I feel that this is somewhat uncharted territory since I am finding little information about it on this site. In addition, the Bentley manual is useless for this.

So here is my problem... It looks like I have to remove the aluminum tubes which run between the firewall and the heater core. But there is a bolt which secures it to the plastic fittings on the other side of the firewall.
Has anyone taken this out before? I can't see where the nut is but if I could remove teh rubber grommet on the engine side of the forwall, I'm sure I'd see the nut.

This is what it looks like from inside the car. As you can see teh head of the bolt fits into a hexagonal cutout in the flange.
dave45056 is offline   Reply With Quote
Old 09-29-2009, 03:08 AM   #12
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default

I got it out! I had to remove the air collector from the firwall to get the aluminum tubes out of the way. In case you are wonder what an air collector is, it's the same part wich has to be removed to change the microfilters. The heater core looked perfect... maybe new. But when I put water in it, I could see it was a leaker. Looks like my style heater core is obsolete now so I get to buy new aluminum tubes, too.
dave45056 is offline   Reply With Quote
Old 10-01-2009, 03:14 PM   #13
campaiar
Senior Member
 
Join Date: Jan 2006
Location: Cincinnati
Posts: 890
iTrader: (0)
Default

Always good to use the newer design.

GL with the reassembly.
__________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs
campaiar is offline   Reply With Quote
Old 10-17-2009, 05:01 PM   #14
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Angry

This is taking forever... I have ALMOST all of the parts to reassemble.
The heater core is a different design that the one that came out.

My old one looks like this:


The new heater core comes like this:


So the twin pipes which go between the heater core and the and the firewall are different. I was unable figure out what the part numbers were for that next set of tubes. It stumped my dealer, Pelican, and Tischer. So I ended up buying a used set of tubes from a guy on here who is parting out his car. I paid for the part on 10-7, but the tubes are still not here .
Hopefully they will arrive on Monday and I can get this thing back together.

I also bought a new plastic piece since all of the other plastic parts of the cooling system are time bombs:


And the new heater core is smaller than the old one. No instructions were included where to put the foam, but I'll wing it.

dave45056 is offline   Reply With Quote
Old 10-30-2009, 10:35 PM   #15
dave45056
Senior Member
 
Join Date: Apr 2006
Location: Oxford, Ohio
Posts: 866
iTrader: (0)
Default I have all of the parts!!!

I got the last of my parts in to do my heater core.
I finally have all of the parts!

If anyone is interested, here is what you need to buy and what the parts look like if you have to replace your heater core. If your car has a 9/96 or earlier build date, you need all of the parts. After 9/96 you would just need the heater core, but given the track recore of plastic parts on out cooling systems, I would replace the inlet, too.


As you can see, the new tubes are shorter
dave45056 is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Heater Core replacement 1999 ti cope HVAC 0 02-10-2009 02:48 PM
WTB: plastic core support covers WhoNew US and North America 1 06-20-2008 06:28 PM
by-passing heater core? inky HVAC 2 07-30-2006 10:09 AM
Anyone have a heater core for me bigwig87 HVAC 0 11-15-2005 02:18 PM
Heater Core...??? glennbell HVAC 3 03-18-2005 07:29 PM


All times are GMT +1. The time now is 09:39 PM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2021, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 121.37 k/144.83 k (16.20%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.