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Old Wed, Oct-04-2017, 03:46:48 AM   #1
NZ_M3
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Default CSL Map Sensor Alternative

As we all know the original CSL Map sensor is no longer available and the BMW new replacement sensor seems very hacked together. I have finally had time to test my other alternative sensor.

So I thought I'd start a thread in here to update the progress from this original thread:

http://www.m3forum.net/m3forum/showthread.php?t=589529

And a repost of what I wrote on page 2 of the above thread:


There is a little known fact that the CSL map sensor was actually just a generic Bosch item with a bespoked casing.

BMW actually removed the reference to its part number in later map sensor productions.
Original reproduction sensors with no correct Bosch part numbers



Here is the original CSL Map sensor showing its part number 0 261 230 115


But it is actually just a Bosch 0 261 230 series sensor in Formula DS-S2 with 3 pin plug.

https://www.bosch-automotive-catalog...26autoLoad%3D1

If you search all Bosch map sensors in 0 261 230 form you get about 450 different variants but only about 40 in DS-S2 Formula form and even less in 3 pin configuration.

0 261 230 058 is one of those ones that appear.

But through my research I found another that I thought was a better fit aesthetically. It carried part number 0 261 230 101. This coincidentally was used in an Alfa 3.2l V6 engine. It seemed logical to me.



The dimentional drawings was also very similar to the CSL sensor. However upon receiving it I noticed whist it bolted up almost perfectly the sensor nose was little longer and needed to be spaced up by around 1.5mm and the O ring off the original CSL sensor to have a snug sealed fit. Easily enough done really and BMW could have easily used this sensor with the addition of an adapter plate.




I tested the sensor reading on the bench and it appears to confirm that the scaling was exactly the same as the Original CSL one.

I haven't however had time to test this on a car yet but I will do so when I get some time. But from what I have researched it will function exactly the same as the OEM CSL one without any need to change scaling in the DME software. The wiring is also made easy by adapter harness you can readily buy from BMW.

Plug end on the MAP sensor is just a generic Bosch 3 Pin common rail diesel injector plug part number 1928404072 or 1928300599 or 1 928 403 966 (Febi does one also and it's part number is 5000157024671)


The CSL plug harness adapter pigtail from BMW is part number 83300413582 (thanks to Terra!!)

Make your own with either the 101 sensor or the 058 sensor above and it'll cost less than what BMW charges for this MAP sensor. I left my pigtail quite long for testing purposes but in reality it can be cut down and you'd have a neat plug and play solution that looks better than the BMW replacement in my opinion.

Last edited by NZ_M3; Wed, Oct-04-2017 at 09:38:02 PM.
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Old Wed, Oct-04-2017, 03:59:16 AM   #2
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Default Re: CSL Map Sensor Alternative

So the 058 sensor that BMW now uses has these specs:



Which is identical to the 101 sensor above that I proposed on using.



Installed on a CSL and on CSL air rail. I had a really long pigtail on this as I wasn't sure which car I was going to test this on. But this can be made much much shorter and neater of course to make it look completely original



In order for this sensor to fit the CSL air rail, all that was needed was 0.5mm shaved off the nose inlet on the sensor with a craft knife (very easy to do) and then I purchased a Viton O-Ring size 8mm ID x 3mm cross section thickness (the original seal that came with the sensor is 8mm ID x 2.5mm cross section which was a little loose for my liking). It was a perfect fit. Everything bolted up like it was made for it.

Testing - identical to the original CSL map sensor readings (sorry the car was still in warm up stage so read a little higher.

No scaling change necessary like the other GM sensor. Same fast responding rate like the original CSL Map sensor.

engine off


Engine on warm up phase


Engine on post warm up but low oil temp still


I took it out for a spin and it was exactly the same as the original sensor - I did a quick log around the block but didn't bother with any screenshots. Everything read as it should.

All together if you were to build this on your own it'd cost much less than the BMW purchased sensor and in my opinion fit much neater and cleaner.

Last edited by NZ_M3; Wed, Oct-04-2017 at 04:38:22 AM.
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Old Wed, Oct-04-2017, 08:50:56 AM   #3
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Default Re: CSL Map Sensor Alternative

Excellent info mate. Thank you for posting.
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Old Wed, Oct-04-2017, 09:41:28 AM   #4
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Default Re: CSL Map Sensor Alternative

Yup good stuff. Will be referencing this when I need to replace my sensor. Thanks!
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Old Wed, Oct-04-2017, 11:41:45 AM   #5
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Default Re: CSL Map Sensor Alternative

Forgot to add the other good thing about it, the wiring is exactly the same as the original CSL sensor. So pin 1 = pin 1 and so on making the install idiot proof!
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Old Wed, Oct-04-2017, 09:26:41 PM   #6
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Default Re: CSL Map Sensor Alternative

Just an update as quite a few people have pm me about the same thing

Quote:
“Plug end on the MAP sensor is just a generic Bosch 3 Pin common rail diesel injector plug part number 1928404072 or 1928300599 or 1 928 403 966 (Febi does one also and it's part number is 5000157024671)”
These part numbers above are BOSCH part numbers not BMW ones.

You can find the plugs on ebay or mouser I believe quite easily. Genuine Bosch is more expensive of course!

The 101 sensor or the 058 sensor can also be found easily on ebay just by searching the sensor part number itself.

Quote:
“The CSL plug harness adapter pigtail from BMW is part number 83300413582 (thanks to Terra!!)”
This part number is from bmw motorcycle catalogue it is not available from cars parts catalogue.

Hope that helps!

Last edited by NZ_M3; Wed, Oct-04-2017 at 10:02:08 PM.
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Old Thu, Oct-05-2017, 09:43:41 AM   #7
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Default Re: CSL Map Sensor Alternative

Awesome work.. a replacement for the OEM sensor!
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Old Mon, Oct-09-2017, 06:52:30 PM   #8
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Default Re: CSL Map Sensor Alternative

Asking here since you guys know your stuff...

I'm looking at getting an IAT, but the CSl one looks different than the one often included in kits sold by vendors like Turner's kit that come with a BERU OEM IAT.

So, for example:


or


vs.


I'm thinking the OEM Hella (with green oring) is the OEM for the CSl IAT and the Beru (narrower one) is from another BMW model?

They're both about $15, but is one better than the other. Looking at getting Turner's kit, but it comes with Beru IAT and now I'm thinking maybe I shouldn't and I should get the HELLA IAT.

Thanks
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·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/550) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
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Old Mon, Oct-09-2017, 07:36:38 PM   #9
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Default Re: CSL Map Sensor Alternative

The Hella version will plug into the factory IAT bung on your CSL airbox (if it has one). The location isn’t all that great though.

The Beru is from the E34 M5 I believe. It allows you to place wherever you’d like, preferably in your ducting or air feed. It is threaded so you can use a nut on the backside.
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Old Mon, Oct-09-2017, 07:54:05 PM   #10
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Default Re: CSL Map Sensor Alternative

Thanks Nick. So same parameters, same measurement, same "sensing"?
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/550) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Discussing CSL Map Sensor Alternative in the Coding and Tuning Forum - Discuss all avenues of coding and tuning here! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)