M3 cowl swap on 335i

R32GOJIRA · 12-15-2015, 06:09 PM

Hi Guys,

Has anyone here done the M3 cowl swap on their car?
If so, do you have any pics and a list of part numbers.
I wana see if i have missed anything that i may need to do this.

Cheers,
Damo

vtl · 12-15-2015, 06:17 PM

64316958817 Housing, microfilter lower section, left
64316958818 Housing, microfilter lower section, right
64316958815 Housing, microfilter top section, left
64316958816 Housing, microfilter top section, right
64319144867 Covering left RHD (didn't buy this)
64319144868 Covering right RHD (didn't buy this)

The coverings for left and right I don't think fit the n54 brake booster properly and so you'll need to notch out a section for the brake lines to poke though. You can optionally buy a cable routing clip but not sure if it will fit the n54 cabling.

Unfortunately for me I have a 1series and needed to notch the cowls for it to fit under my headlight washers (theyre on the bonnet on a 1series). Still haven't gotten around to finishing the project lol.

3 series fitment is perfect though.

JB4-335 · 12-15-2015, 06:30 PM

Who runs with a cowl

:

R32GOJIRA · 12-15-2015, 06:53 PM

Quote:

Originally Posted by vtl

64316958817 Housing, microfilter lower section, left
64316958818 Housing, microfilter lower section, right
64316958815 Housing, microfilter top section, left
64316958816 Housing, microfilter top section, right
64319144867 Covering left RHD (didn't buy this)
64319144868 Covering right RHD (didn't buy this)

The coverings for left and right I don't think fit the n54 brake booster properly and so you'll need to notch out a section for the brake lines to poke though. You can optionally buy a cable routing clip but not sure if it will fit the n54 cabling.

Unfortunately for me I have a 1series and needed to notch the cowls for it to fit under my headlight washers (theyre on the bonnet on a 1series). Still haven't gotten around to finishing the project lol.

3 series fitment is perfect though.

Thanks Vince.
So you havent got the plastic cradle that hold the engine harness?

R32GOJIRA · 12-15-2015, 06:54 PM

Quote:

Originally Posted by JB4-335

Who runs with a cowl

:

To make it look nice and tidy.
Have you got pics of yours without a cowl?

vtl · 12-15-2015, 07:06 PM

Quote:

Originally Posted by R32GOJIRA

Thanks Vince.
So you havent got the plastic cradle that hold the engine harness?

I might get it later once I have everything in, still need to dig up the part number for that one. Need to get some time to fill in the notches I cut out of the top covers.

bmwheath · 12-15-2015, 08:19 PM

Quote:

Originally Posted by JB4-335

Who runs with a cowl

:

Not i

_ink · 12-15-2015, 08:29 PM

I run with the M3 cowl to keep it all nice and tidy.

I've tucked away all the cables and modded the unsightly brake booster hardline that was near the intake.

To me, engine bay presentation is important.

And be sure to buy the M3 micro filters also, I ordered the BMS ones and they didn't fit.

R32GOJIRA · 12-15-2015, 08:57 PM

Quote:

Originally Posted by _ink

I run with the M3 cowl to keep it all nice and tidy.

I've tucked away all the cables and modded the unsightly brake booster hardline that was near the intake.

To me, engine bay presentation is important.

And be sure to buy the M3 micro filters also, I ordered the BMS ones and they didn't fit.

How did you go about modding the brake booster hard line? What did you do to it?

vtl · 12-15-2015, 09:03 PM

You can just cut off the hard pipe and that will expose some barbs. I used a pair of cutters to cut a slit in the hard pipe then got some pliers to slowly tear the hard pipe off in a spiral off the barbs.

You can use some reinforced power steering hose which fits nicely and doesn't collapse under vaccum. This will allow you to route it in a nice neat fashion. I had to do this for the brake booster check valve when I bought a the wrong LHD version and it was the wrong length. Would have to check the diameter of the hose when I get home, got it from supercheap auto

I would highly suggest buying a spare hard pipe in case you stuff it up lol

_ink · 12-15-2015, 09:09 PM

I just disconnected the existing hard lines from the connection points, used a heat gun to heat up the hose to remove the connections from the hard line with a sharp blade slitting the hose.

Then replaced the hard line with 3/8" brake hose...

Voila!

Tom Droze · 12-15-2015, 09:11 PM

I recently did the M3 cowl on my 328i.

http://www.e90post.com/forums/showthread.php?t=1192930

R32GOJIRA · 12-15-2015, 09:27 PM

Cheers for all this info boys.
Keep it coming

_ink · 12-15-2015, 10:54 PM

next project is black nylon braided lines for PCV hoses into OCC!

R32GOJIRA · 01-07-2016, 03:00 AM

Is there a DIY thread for this, or is it pretty straight forward?

R32GOJIRA · 01-14-2016, 03:19 PM

Quote:

Originally Posted by vtl

64316958817 Housing, microfilter lower section, left
64316958818 Housing, microfilter lower section, right
64316958815 Housing, microfilter top section, left
64316958816 Housing, microfilter top section, right
64319144867 Covering left RHD (didn't buy this)
64319144868 Covering right RHD (didn't buy this)

The coverings for left and right I don't think fit the n54 brake booster properly and so you'll need to notch out a section for the brake lines to poke though. You can optionally buy a cable routing clip but not sure if it will fit the n54 cabling.

Unfortunately for me I have a 1series and needed to notch the cowls for it to fit under my headlight washers (theyre on the bonnet on a 1series). Still haven't gotten around to finishing the project lol.

3 series fitment is perfect though.

I found the part numbers for the M3 cable ducting if you want them:

12527532269 Cable Duct, upper section
12527532270 Cable Duct, lower section

Saves you trying to dig them up.

vtl · 01-14-2016, 03:38 PM

Quote:

Originally Posted by R32GOJIRA

I found the part numbers for the M3 cable ducting if you want them:

12527532269 Cable Duct, upper section
12527532270 Cable Duct, lower section

Saves you trying to dig them up.

Those are the part numbers for the stock n54 ones.

I dug up the part numbers for the m3 cable tidy clip but they are not fitted to all M3s and you can't even buy them new from most online places like FCPeuro. So the only way is to buy used unless I buy from the dealer.

R32GOJIRA · 01-14-2016, 04:31 PM

Sorry you are right.

The actual part numbers are:

12527838732 top section
12527838733 bottom section

EB89 · 01-20-2016, 05:06 AM

Will these parts fit N55 ok?

R32GOJIRA · 01-20-2016, 02:42 PM

Quote:

Originally Posted by EB89

Will these parts fit N55 ok?

I dont see why not man. Its the same chassis.

Flex68 · 01-20-2016, 03:50 PM

Where's the cheapest to buy these parts ?

vtl · 01-20-2016, 03:56 PM

Buy it used, the top covers are quite expensive. The lower covers are pretty cheap so I bought them brand new

12-15-2015, 06:09 PM	#1
R32GOJIRA Banned 251 Rep 1,582 Posts Drives: R32 GTR, WN Caprice Join Date: Sep 2015 Location: Wollongong iTrader: (1)	M3 cowl swap on 335i Hi Guys, Has anyone here done the M3 cowl swap on their car? If so, do you have any pics and a list of part numbers. I wana see if i have missed anything that i may need to do this. Cheers, Damo
	Appreciate 0 Tweet Quote

12-15-2015, 06:17 PM	#2
vtl Brigadier General 1493 Rep 3,148 Posts Drives: 2008 BMW 135i MT Join Date: Apr 2015 Location: Melbourne, Australia iTrader: (0)	64316958817 Housing, microfilter lower section, left 64316958818 Housing, microfilter lower section, right 64316958815 Housing, microfilter top section, left 64316958816 Housing, microfilter top section, right 64319144867 Covering left RHD (didn't buy this) 64319144868 Covering right RHD (didn't buy this) The coverings for left and right I don't think fit the n54 brake booster properly and so you'll need to notch out a section for the brake lines to poke though. You can optionally buy a cable routing clip but not sure if it will fit the n54 cabling. Unfortunately for me I have a 1series and needed to notch the cowls for it to fit under my headlight washers (theyre on the bonnet on a 1series). Still haven't gotten around to finishing the project lol. 3 series fitment is perfect though. __________________ Build Thread
	Appreciate 0 Quote

12-15-2015, 06:30 PM	#3
JB4-335 Brigadier General 168 Rep 3,093 Posts Drives: E92 BSM & E70 AW Join Date: Feb 2011 Location: Australia iTrader: (1)	Who runs with a cowl :
	Appreciate 0 Quote

12-15-2015, 08:29 PM	#8
_ink Jedi samurai ninja turtle 619 Rep 3,021 Posts Drives: X3 M40i 2018 Join Date: May 2012 Location: Sydney, Australia iTrader: (0) Garage List 2018 X3 M40i [0.00]	I run with the M3 cowl to keep it all nice and tidy. I've tucked away all the cables and modded the unsightly brake booster hardline that was near the intake. To me, engine bay presentation is important. And be sure to buy the M3 micro filters also, I ordered the BMS ones and they didn't fit. Attached Images
	Appreciate 0 Quote

12-15-2015, 09:03 PM	#10
vtl Brigadier General 1493 Rep 3,148 Posts Drives: 2008 BMW 135i MT Join Date: Apr 2015 Location: Melbourne, Australia iTrader: (0)	You can just cut off the hard pipe and that will expose some barbs. I used a pair of cutters to cut a slit in the hard pipe then got some pliers to slowly tear the hard pipe off in a spiral off the barbs. You can use some reinforced power steering hose which fits nicely and doesn't collapse under vaccum. This will allow you to route it in a nice neat fashion. I had to do this for the brake booster check valve when I bought a the wrong LHD version and it was the wrong length. Would have to check the diameter of the hose when I get home, got it from supercheap auto I would highly suggest buying a spare hard pipe in case you stuff it up lol __________________ Build Thread
	Appreciate 0 Quote

12-15-2015, 09:09 PM	#11
_ink Jedi samurai ninja turtle 619 Rep 3,021 Posts Drives: X3 M40i 2018 Join Date: May 2012 Location: Sydney, Australia iTrader: (0) Garage List 2018 X3 M40i [0.00]	I just disconnected the existing hard lines from the connection points, used a heat gun to heat up the hose to remove the connections from the hard line with a sharp blade slitting the hose. Then replaced the hard line with 3/8" brake hose... Voila!
	Appreciate 1 Quote

12-15-2015, 09:11 PM	#12
Tom Droze Major 413 Rep 1,286 Posts Drives: 2012 BMW 328i (e92) Join Date: Jul 2014 Location: Scottsdale, Arizona iTrader: (0)	I recently did the M3 cowl on my 328i. http://www.e90post.com/forums/showthread.php?t=1192930 __________________ 2012 Jet Black 328i Coupe / ESS Tuning Gen. 2 Supercharger / Evolution Racewerks Oil Cooler / BMS Oil Catch Can / BMW Performance Exhaust with Dinan Y Pipe / Eibach Pro Kit Springs / Koni FSD Shocks / MFactory LSD & Differential Bushings / Performance Rear Trailing Arms / BMW Performance Strut Brace / Stop Tech Slotted Rotors / Hawk HPS 5.0 / SS Brake Lines / Brass Guide Pins / M3 Front Control Arms, 28 MM FSB, Engine Cowl, and DCT Paddle Shifters / Michelin PSS / APEX ARC-8
	Appreciate 1 johnnyorange52.50 Quote

12-15-2015, 09:27 PM	#13
R32GOJIRA Banned 251 Rep 1,582 Posts Drives: R32 GTR, WN Caprice Join Date: Sep 2015 Location: Wollongong iTrader: (1)	Cheers for all this info boys. Keep it coming
	Appreciate 0 Quote

12-15-2015, 10:54 PM	#14
_ink Jedi samurai ninja turtle 619 Rep 3,021 Posts Drives: X3 M40i 2018 Join Date: May 2012 Location: Sydney, Australia iTrader: (0) Garage List 2018 X3 M40i [0.00]	next project is black nylon braided lines for PCV hoses into OCC!
	Appreciate 0 Quote

01-07-2016, 03:00 AM	#15
R32GOJIRA Banned 251 Rep 1,582 Posts Drives: R32 GTR, WN Caprice Join Date: Sep 2015 Location: Wollongong iTrader: (1)	Is there a DIY thread for this, or is it pretty straight forward?
	Appreciate 0 Quote

01-14-2016, 04:31 PM	#18
R32GOJIRA Banned 251 Rep 1,582 Posts Drives: R32 GTR, WN Caprice Join Date: Sep 2015 Location: Wollongong iTrader: (1)	Sorry you are right. The actual part numbers are: 12527838732 top section 12527838733 bottom section
	Appreciate 0 Quote

01-20-2016, 05:06 AM	#19
EB89 Brigadier General 541 Rep 3,131 Posts Drives: 2011 335i e92 DCT Join Date: Sep 2015 Location: Australia, NSW iTrader: (0) Garage List 2011 BMW 335i e92 [0.00]	Will these parts fit N55 ok?
	Appreciate 0 Quote

01-20-2016, 03:50 PM	#21
Flex68 Captain 75 Rep 853 Posts Drives: E92 335i Join Date: Mar 2015 Location: Australia iTrader: (0)	Where's the cheapest to buy these parts ?
	Appreciate 0 Quote

01-20-2016, 03:56 PM	#22
vtl Brigadier General 1493 Rep 3,148 Posts Drives: 2008 BMW 135i MT Join Date: Apr 2015 Location: Melbourne, Australia iTrader: (0)	Buy it used, the top covers are quite expensive. The lower covers are pretty cheap so I bought them brand new __________________ Build Thread
	Appreciate 0 Quote