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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Charge pipe temp sensor connector
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      02-28-2021, 06:21 PM   #1
-KingJames-
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Charge pipe temp sensor connector

Hey guys, I have a 2017 F34 B46.

I need help finding the part number to this connector. It's the connector that connects to the temperature sensor on the charge pipe. Does BMW sell the connector/adaptor by itself? I know they sell the whole wiring harness but I don't need the whole wiring harness, just a connector.

I've attached two pictures I found online.
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      02-28-2021, 06:40 PM   #2
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I believe I found it. P/N 61139291135. I hope thats it.
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      02-28-2021, 06:45 PM   #3
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At a quick glance I'd assume it's a member of the TE MCON family (also similar connectors made by a number of other manufacturers, but MCON is easiest for regular people to buy). But I can't see the picture very well, so I'm not sure. It almost looks like the high temp/vibration version used on the N20 HPFP.

Are there any markings on the connector? Add larger, brighter pictures of the connector and esp of any markings. Often there will be two sets, one related to the BMW part number and one related to the original manufacturer number (for example on the N20 I saw a lot of BMW and Hirschmann part #s).
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      02-28-2021, 07:14 PM   #4
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Quote:
Originally Posted by ScottSmith View Post
At a quick glance I'd assume it's a member of the TE MCON family (also similar connectors made by a number of other manufacturers, but MCON is easiest for regular people to buy). But I can't see the picture very well, so I'm not sure. It almost looks like the high temp/vibration version used on the N20 HPFP.

Are there any markings on the connector? Add larger, brighter pictures of the connector and esp of any markings. Often there will be two sets, one related to the BMW part number and one related to the original manufacturer number (for example on the N20 I saw a lot of BMW and Hirschmann part #s).
I'm missing the connector. The pictures I've attached are from online sources. If I had it I could easily look at the p/n /markings and find a replacement.

Where can you buy MCON housings/connectors?
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      03-01-2021, 03:30 PM   #5
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I think you found the right part. I think the original standard is USCAR 1.2 or maybe VDA 1.2. Tons of companies make versions compatible with it, including TE (MCON), Molex, etc. You can get TE MCON connectors from mouser.com or auto-click.co.uk, but the standard connector (say, TE 1-1718643-1) doesn't have that step on the end that you have in those pictures and that the part you found has. That looks like a variant from the original spec. The risk is the terminals won't fit the housing; plus even within the spec there are two types of terminals (lance-less and clean body) and they require different connector housings.

I think the original part is SealStar HMK 1.2, part #806-026-541. But I haven't found where to order it.
https://shop.hirschmann-automotive.c...tar_HMK_EN.pdf
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      03-03-2021, 02:23 PM   #6
-KingJames-
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OK i got the connector but it seems now I also need new pin terminals. Anyone know the type of pin terminals needed for those wires and connector?

Below is a picture of the broken pins:

Anyone know how new unbroken wire pins for that socket housing are supposed to look like?
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Last edited by -KingJames-; 03-03-2021 at 03:25 PM..
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      03-03-2021, 05:54 PM   #7
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Quote:
Originally Posted by ScottSmith View Post
I think you found the right part. I think the original standard is USCAR 1.2 or maybe VDA 1.2. Tons of companies make versions compatible with it, including TE (MCON), Molex, etc. You can get TE MCON connectors from mouser.com or auto-click.co.uk, but the standard connector (say, TE 1-1718643-1) doesn't have that step on the end that you have in those pictures and that the part you found has. That looks like a variant from the original spec. The risk is the terminals won't fit the housing; plus even within the spec there are two types of terminals (lance-less and clean body) and they require different connector housings.

I think the original part is SealStar HMK 1.2, part #806-026-541. But I haven't found where to order it.
https://shop.hirschmann-automotive.c...tar_HMK_EN.pdf

Oh wow you found the OE. Do you know which type of terminals are required for the socket? I tried using some old terminals I had when I repaired my ambient temp sensor on my e46 but those didn't fit correctly.
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      03-04-2021, 12:59 PM   #8
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I don't know about what terminals work. You can get a pigtail harness from BMW, part # 12518638006. $$$. So annoying.
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      03-04-2021, 06:24 PM   #9
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Found it, the correct terminals are 61-13-7-635-617
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      03-05-2021, 10:08 AM   #10
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Wow, how did you find that? Realoem doesn't have any vehicle association with it, but it does seem to know about the part.
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      03-05-2021, 10:25 AM   #11
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Quote:
Originally Posted by ScottSmith View Post
Wow, how did you find that? Realoem doesn't have any vehicle association with it, but it does seem to know about the part.
Well I went on a wild goose chase looking at all the suppliers for terminals and those did match, but buying them from suppliers in a low quantity would be difficult. I sent a message over to the guys at getbmwparts and they sent me an email with that exact P/N, which my local bmw dealer had in stock.

Now I need to find the part that covers the wires from the connector to the tube:
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      03-05-2021, 12:11 PM   #12
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That helps a little with strain relief but otherwise isn't important. But that reminds me - if you're redoing the terminals, you need seals too. TE 967067-1 or -2 depending on wire diameter. Or maybe BMW 61138366245.
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      03-05-2021, 02:40 PM   #13
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Quote:
Originally Posted by ScottSmith View Post
That helps a little with strain relief but otherwise isn't important. But that reminds me - if you're redoing the terminals, you need seals too. TE 967067-1 or -2 depending on wire diameter. Or maybe BMW 61138366245.
I found the end part, the last mechanic had it when he attempted and failed at fixing it.... The seals were on there from before so I just reused those. Plus I had extra seals from previous repairs. Everything has been fixed to perfection.
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