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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sat, Dec-20-2014, 05:26:52 PM   #1
m3dragon
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Default Comprehensive CSL Intake Thread

Types of Airboxes:

OEM
  • Pros: Perfect fitment, likely most durable
  • Cons: Very expensive (~$6000), very difficult to find, hardware (filter, clamps, shutoff valve, etc.) likely sold separately.


Karbonius
  • Pros: Cheapest ($1800-2000), OE replica, uses all OE hardware and ducting
  • Cons: All hardware (filter, clamps, shutoff valve, etc.) has to be sourced separately. Some minor fitment issues.


Evolve
  • Pros: Includes alpha-n tune and all necessary hardware, designed to draw cold air without special ductwork, customer service. Available in both matte and gloss. Never heard of any fitment issues
  • Cons: Must use Evolve tune (unless you want to throw away money), does not use OE filter, cannot use CSL flap or ducting.

Those are the big 3. There are a couple others out there. Geoff Steele is popular in the UK, but I'm not really familiar with the specifics of their airbox. VAC is supposed to be awful



Wiring (for CSL DME Conversion)
You have two options: Either buy an OE CSL harness (pn: 12517833336) or modify the stock harness. You can buy an OE CSL harness for $600 - $1000 depending on the supplier; it requires minor modification to work properly with a manual car

If not using the CSL engine harness, CSL Wiring Harness Conversion:

MAP Sensor
  • Requirements:
    • 12527507526 x 1 (Connector)
    • 12527502932 x 3 (Gold Contacts for MAP connector)
    • 12527510674 x 3 (Contacts for DME Connector)
    • 12527503411 x 3 (Rubber Grommet for contacts)
    • 22-20 AWG Wiring in assorted colors
    • Optional: 12527506431 x 1 (Connector boot – possibly wrong part)
  • Pinout:
    • MAP Pin 1 -> X60003 Pin 7
    • MAP Pin 2 -> X60003 Pin 17
    • MAP Pin 3 -> X60003 Pin 18


Alternator signal (March 2004+ Cars)
  • Requirements:
    • 12527510674 x 2 (Cluster and DME pins)
    • 22 AWG wire
  • Pinout: Black Connector of Instrument Cluster Pin 2 -> X60004 Pin 1
  • Coding: Set “GENERATOR_UEBER_CAN” to nicht_aktiv


IAT Sensor
  • IAT pin 1 to MAF harness pin 1 or DME X60003 pin 22 (Power)
  • IAT pin 2 to MAF harness pin 3 or DME X60003 pin 16 (Ground)

Flap Motor
  • Flap pin 1 to DME X60002 pin 8 (Power)
  • Flap pin 2 to DME X60002 pin 9 (Ground)

Flap position sensor
  • FPS pin 1 to MAF harness pin 3 or DME X60003 pin 20 (Ground)
  • FPS pin 2 to MAF harness pin 5 or DME X60003 pin 1 (Signal)
  • FPS pin 3 to MAF harness pin 4 or DME X60003 pin 14 (Power)


Fuel Pump Relay Conversion - US cars only (Try running the car without touching the fuel pump relay first. It's not required for most cars; it has yet TBD what causes it to be required)
  • Requirement: Green BMW Relay (replaces black relay)
  • Pinout:
  • Relocate X60002 Pin 11 -> X60004 Pin 10
  • Relocate Relay Pin 1 to Pin 4
  • Pin 7 is unused

For reference:


X60001 is the top-right connector in this picture. They increase sequentially until X60005 as you go down and left
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Last edited by terraphantm; Thu, Dec-03-2015 at 05:42:39 PM.
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Old Tue, Dec-23-2014, 05:49:23 PM   #2
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Default Re: Comprehensive CSL Intake Thread

I just got word that the Control Unit (Snorkel) P/N 11617833498 is no longer available.
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Old Tue, Dec-23-2014, 06:15:37 PM   #3
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Default Re: Comprehensive CSL Intake Thread

Sometimes I feel bad for csl owners. BMW is screwing them over by trying to limit csl parts. Everything is running out! I have three friends that bought map rails and sensors just in case they do the conversion in the future when they're NLA
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Old Tue, Dec-30-2014, 07:18:56 PM   #4
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Default Re: Comprehensive CSL Intake Thread

Here's a visual of the main engine harness difference between CSL and an 03 Euro harness.

CSL harness on the left, Euro on the right


CSL Harness


Euro Harness


CSL intake flap motor and IAT wiring plug


Euro non intake flap motor wiring


CSL Map sensor wiring


Euro no map sensor wiring (notice the grommet is already there for it however)


CSL intake flap potentiometer plug


Euro MAF plug


Wiring housing internal differences and plugs (CSL first, then Euro)











CSL Intake flap motor wiring hole (just drilled out and plastic grommet (part number of grommet appears to be ending with 1407960)



Happy to provide more photos of this harness if requested.

Last edited by NZ_M3; Wed, Dec-31-2014 at 08:57:37 AM.
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Old Wed, Dec-31-2014, 02:50:35 AM   #5
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Default Re: Comprehensive CSL Intake Thread

Thanks for that. I was wondering where from that box they ran the flap and IAT wires. Looks like they literally just drilled a hole in the box and added a tube.
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Old Mon, Jan-05-2015, 01:04:01 PM   #6
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Default Re: Comprehensive CSL Intake Thread

I hate to be the dumb guy who sticks his head out, but...

Let me preface this with, I wrench and do everything on my cars. With that being said, I am an absolute dummy whenever it comes to electronics. Is there any possibility of getting (literally) a step-by-step DIY install? I am talking, take this exact wire and solder to this wire, etc. This connector gets attached to this wire, route this wire through here, etc. Maybe I am just asking too much, not sure. I just don't want to mess anything up!

Mr. Wolfe
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Old Mon, Jan-05-2015, 11:56:47 PM   #7
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Default Re: Comprehensive CSL Intake Thread

Quote:
Originally Posted by Mr. Wolfe View Post
I hate to be the dumb guy who sticks his head out, but...

Let me preface this with, I wrench and do everything on my cars. With that being said, I am an absolute dummy whenever it comes to electronics. Is there any possibility of getting (literally) a step-by-step DIY install? I am talking, take this exact wire and solder to this wire, etc. This connector gets attached to this wire, route this wire through here, etc. Maybe I am just asking too much, not sure. I just don't want to mess anything up!

Mr. Wolfe
+1

Cheers
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Old Tue, Jan-06-2015, 02:29:45 AM   #8
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Default Re: Comprehensive CSL Intake Thread

I will get some pics tomorrow to show you the pins as close as I can.
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Old Tue, Jan-06-2015, 04:17:34 AM   #9
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Default Re: Comprehensive CSL Intake Thread

Thanks Adam. I hope I am not being too much of a pain. My airbox should be in this week and I already have the snorkel.

Mr. Wolfe
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Old Tue, Jan-06-2015, 04:30:43 AM   #10
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Default Re: Comprehensive CSL Intake Thread

Not being a pain at all. Issue is it is hard to explain how this all tire together. I learned by meeting with someone and we figured it out using the BMW install software. If you are going alone it is harder.

I will get the pics posted tomorrow.
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Discussing Comprehensive CSL Intake Thread in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)