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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 Sun, Sep-10-2017, 04:43:51 PM   #11
Ge0rgeBeirut
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Default Re: CSL MAP Sensor...BMW changing supplier

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Originally Posted by L0ADED View Post
How much is the sensor now?
I paid $277 for the sensor, $35 for DHL shipping from Schmiedmann. Keep in mind that I had paid for this in March based on the old part number.

Just checked and Schmiedmann have the new part number on there website now and they have it IN STOCK for $308.

https://www.schmiedmann.com/en/catn-ol?q=12528091765
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Old Sun, Sep-10-2017, 04:59:50 PM   #12
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Default Re: CSL MAP Sensor...BMW changing supplier

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Originally Posted by terraphantm View Post
Both sensors will probably perform the same. Seems like Bosch just didn't feel like producing a low volume sensor, so they pulled something off the shelf that can fit the CSL rail. If it were me I'd stick with the old sensor for cosmetics alone if you already have one

Honestly now that the OE sensor isn't purpose built, for future retrofits I'd probably just go with something like the TTFS rail or just T-off an existing vacuum connection and work from there.
You have a point, looking more at the new map sensor and the link you sent for amazon, seems like they just added an adaptor to connect to a CSL. In the last image in the link i sent, you can notice they used a zip tie to ensure tightness....i feel like its homemade
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Old Sun, Sep-10-2017, 07:38:13 PM   #13
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Default Re: NEW! CSL MAP Sensor...BMW changed supplier

That's pretty expensive!
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Old Sun, Sep-10-2017, 08:47:01 PM   #14
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Default Re: CSL MAP Sensor...BMW changing supplier

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Originally Posted by Ge0rgeBeirut View Post
I paid $277 for the sensor, $35 for DHL shipping from Schmiedmann. Keep in mind that I had paid for this in March based on the old part number.

Just checked and Schmiedmann have the new part number on there website now and they have it IN STOCK for $308.

https://www.schmiedmann.com/en/catn-ol?q=12528091765
Damn, that is a bit unfortunate since the sensor is much less without the adapter. Can you or would you want to return it (not usually a fan of doing that since they did source the part)? That adapter should be easy to make.

When will you be able to install and test it? I would not mind having the new sensor (the Peugoet Bosch sensor) as a backup and custom making the wiring harness if it is as reliable as the original OE MAP sensor.

Last edited by L0ADED; Sun, Sep-10-2017 at 08:51:23 PM.
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Old Sun, Sep-10-2017, 10:12:00 PM   #15
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Default Re: CSL MAP Sensor...BMW changing supplier

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Originally Posted by L0ADED View Post
Damn, that is a bit unfortunate since the sensor is much less without the adapter. Can you or would you want to return it (not usually a fan of doing that since they did source the part)? That adapter should be easy to make.

When will you be able to install and test it? I would not mind having the new sensor (the Peugoet Bosch sensor) as a backup and custom making the wiring harness if it is as reliable as the original OE MAP sensor.
It is a bit unfortunate and Im not a fan of returning a product from a great supplier that has sourced out a lot of parts for me and very supportive, might as well bite the bullet and keep this one.

Since I'm patient zero (that I know of), I'm thinking of ordering the Peugoet sensor and just compare apples to apples and see if they did configure anything, like what Terra said, possibly the o-ring. After that, ill install and run in my car for a bit, then I guess it will be in a drawer until my other CSL sensor needs changing (what is their life spam?)

Hopefully, Ill try and achieve all this by max end of sept. just got to figure some away time from work and fly to beirut for a weekend. (as also i want to enjoy the m3 before rain season)
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Old Mon, Sep-11-2017, 12:14:38 AM   #16
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Default Re: CSL MAP Sensor...BMW changing supplier

I was actually going to start another thread about an alternative CSL Map sensor in the coding section, but probably as valid posting it here.

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 (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.

As for how the new BMW CSL Map sensor plugs up, I believe it is bolted up in this fashion:
"the bracket seems to bolt to one of the original holes that would be otherwise used had the MAP sensor utilised the original 2 bolt pattern The wiring then loops around in an "U" fashion and is then bolted into the other free bolt hole in the original position on the air rail. If you look at the sensor from the front of the car the lettering on it should be upside down. In this fashion, it will allow the original loom plug to be plugged in correctly without too much slack and it gives it a semi neat look a bit like the post 2005 emission cars with the additional emission lines."

Last edited by NZ_M3; Mon, Sep-11-2017 at 04:52:04 AM.
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Old Mon, Sep-11-2017, 12:54:10 AM   #17
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Default Re: CSL MAP Sensor...BMW changing supplier

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Originally Posted by Ge0rgeBeirut View Post
You have a point, looking more at the new map sensor and the link you sent for amazon, seems like they just added an adaptor to connect to a CSL. In the last image in the link i sent, you can notice they used a zip tie to ensure tightness....i feel like its homemade
I think they had to do that because that sensor is cut down to give clearance because if they had used a proper plug it would be too tall to clear the carbon filter housing.

I am sure if you peel back the dust boot it will show that. I do wonder what they used as connection though? I am guessing here, but I think they must have crimped wires to the pins and then perhaps epoxy sealed it, because that's the only way I can see them making that sensor work.
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Old Mon, Sep-11-2017, 03:10:10 AM   #18
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Default Re: CSL MAP Sensor...BMW changing supplier

NZ_M3, great research on that MAP sensor

So all one would need to do is fabricate a 1.5mm spacer out of aluminum for the MAP sensor you found and swap over the o-ring (or find one that fits)?
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Old Mon, Sep-11-2017, 03:45:21 AM   #19
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Default Re: CSL MAP Sensor...BMW changing supplier

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Originally Posted by L0ADED View Post
NZ_M3, great research on that MAP sensor

So all one would need to do is fabricate a 1.5mm spacer out of aluminum for the MAP sensor you found and swap over the o-ring (or find one that fits)?
+1. About the 1.5mm longer nose, why wouldn't you simply trim that amount?
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Old Mon, Sep-11-2017, 04:01:43 AM   #20
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Default Re: CSL MAP Sensor...BMW changing supplier

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+1. About the 1.5mm longer nose, why wouldn't you simply trim that amount?
I thought about that actually but wasn't 100% sure if it would affect its operation?! I guess it shouldn't in theory and would make the install that much more simpler!
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Discussing CSL MAP Sensor...BMW changing supplier 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)