E90Post
 


Lux Angel Eyes
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Innercooler, Water Pump, Thermostat & Downpipes



Reply
 
Thread Tools Search this Thread
      07-27-2013, 12:48 PM   #1
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

Innercooler, Water Pump, Thermostat & Downpipes

My water pump died a couple of weeks ago. I wanted to install an upgraded intercooler and downpipes too, so I'm doing everything at once.

So far, I've:
-removed the OEM intercooler
-trimmed the front plastic to make clearance for the CX intercooler,
-made some brackets for the intercooler
-got the intercooler brackets welded on
-removed the thermostat
-removed the water pump

I'm in the process of removing the down pipes.

1st question .... I disconnected rear O2's and removed them from the car. My new down pipes have no cats. Is there any reason to put the downstream o2's back in? I have a Cobb tuner, so I'm assuming I can program to ignore the codes from the downstream o2's?

2nd question .... I've read I need to drop the subframe to get the OEM down pipes out. I imagine I could cut them out too. Do I need to drop the subframe to get the new down pipes in? Looks like the new ones are a little smaller without the cats and brackets.

3rd question .... the fan shroud is just kind of hanging there without the OEM intercooler. is that okay or should it be secured somehow?

__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)

Last edited by tb30570; 07-29-2013 at 09:23 PM.
tb30570 is offline  
0
Reply With Quote
      07-27-2013, 05:06 PM   #2
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

can the moderator fix the spelling error in the title of this thread?
__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)
tb30570 is offline  
0
Reply With Quote
      07-27-2013, 05:24 PM   #3
gtaccord
Captain
 
Drives: 2009 BMW 335xi
Join Date: Feb 2012
Location: Maryland

Posts: 927
iTrader: (6)

Garage List
You have to put the o2 sensors back in. The car will not run right without them (tuner or not).

I think you can get the stock dps out without dropping the subframe unless you have an xdrive.
gtaccord is offline   United_States
0
Reply With Quote
      07-27-2013, 08:19 PM   #4
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

Quote:
Originally Posted by gtaccord View Post
You have to put the o2 sensors back in. The car will not run right without them (tuner or not).

I think you can get the stock dps out without dropping the subframe unless you have an xdrive.
I guess I'll hold on to the o2's then. How do you prevent trouble codes with the cobb anyway? i didn't see much for options other than OTS stuff.

it's a 335xi. I dropped the subframe following this DIY. took a lot less time than I thought. So much room with the water pump removed too that the downpipes literally fell out. I should have dropped the subframe when I was taking out the water pump. I'll leave it down while putting the new one in for sure!

http://www.e90post.com/forums/showth...=425486&page=2
__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)

Last edited by tb30570; 07-29-2013 at 09:20 AM.
tb30570 is offline  
0
Reply With Quote
      07-29-2013, 09:18 AM   #5
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

when mounting the intercooler to the bumper, do you usually drill and tap the bumper or user self tapping screws?

the fan shroud is just kind of hanging there without the OEM intercooler. is that okay or should it be secured somehow?
__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)
tb30570 is offline  
0
Reply With Quote
      07-29-2013, 11:04 AM   #6
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

I tried drilling the bumper for a while. That bumper is harder than hell, keeps dulling my drill bits. ended up welding on studs instead.
__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)

Last edited by tb30570; 07-29-2013 at 07:01 PM.
tb30570 is offline  
0
Reply With Quote
      07-29-2013, 07:00 PM   #7
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

Added coolant to the reservoir and the t fitting at the thermostat started leaking where it mates to the thermostat. I've drained the system again. I could replace the elbow fitting, but it's just as likely it's leaking because of the thermostat. What's wrong with using hose clamps in a design?

I'm thinking of using Silicone adhesive on the joint, letting it set and refilling the system again. Any thoughts?
__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)
tb30570 is offline  
0
Reply With Quote
      08-05-2013, 10:26 PM   #8
tb30570
Private
 
tb30570's Avatar
 
Drives: 2008 BMW 335xi Coupe 6-Speed
Join Date: May 2013
Location: Quad Cities

Posts: 62
iTrader: (0)

Quote:
Originally Posted by knissel
Hello,

I just bought this:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=250858634871

I was wondering if you could help me source the rest of the parts needed to do a complete install.

Thanks,

Kenny
Get (1) of these for the passenger's side:
http://www.ebay.com/itm/230990568853...84.m1439.l2649

Get (2) of these, one for each side on the bottom:
http://www.ebay.com/itm/270981268552...84.m1439.l2649

Get this:
http://www.ebay.com/itm/251126093873...84.m1439.l2649

Get (4) of these, (1) for the passenger's side and (2) for the driver's side bottom and (1) for the driver's side top
http://www.ebay.com/itm/251167489132...84.m1439.l2649

You will need to make some aluminum L-brackets and weld them onto the intercooler. I had some scrap aluminum laying around. You can buy aluminum at your local weld shop probably and ask them to weld it on for you too. Some people have drilled the bumper and bolted the L-brackets to it. I had a hard time drilling thru the bumper, so I welded studs on instead. If you don't have a welder, you'll need hardware to bolt the intercooler to the bumper. 8mm hardware should probably be fine.
__________________
2008 BMW 335xi Coupe 6-speed, 12.8 @ 107
2000 Chevrolet Corvette Z51, 11.4 @ 123
2005 Saturn Ion Redline, 14.1 @ 100 (sold Jun-2013)
tb30570 is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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


All times are GMT -5. The time now is 12:27 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST