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      11-11-2019, 04:27 PM   #1
moorer11
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Mystery screw

I have this left over from my water pump/thermostat and oil filter housing gasket replacement jobs on a 2011 135i (N55).

Can anyone suggest where this screw goes?

It's about 30mm long, 10mm hex drive.

I originally thought this was the screw that secured the fan to the radiator, but I now believe that's not the case. I had a third screw that matched the inter-cooler screws that I believe is the correct one for the fan.
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Last edited by moorer11; 11-11-2019 at 04:35 PM.. Reason: clarifications
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      11-11-2019, 04:37 PM   #2
dtla1
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That looks like a typical Body Panel screw, maybe from your underbody tray?
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      11-11-2019, 05:50 PM   #3
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Quote:
Originally Posted by dtla1 View Post
That looks like a typical Body Panel screw, maybe from your underbody tray?
that is what I was going to say. most likely goes to the tray.
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      11-11-2019, 07:55 PM   #4
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OH

that's the "MEGA SCREW"

if you take that screw out----the WHOLE CAR FALLS APART AND DISASSEMBLES!!!!!

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      11-11-2019, 09:04 PM   #5
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Quote:
Originally Posted by 10" View Post
OH

that's the "MEGA SCREW"

if you take that screw out----the WHOLE CAR FALLS APART AND DISASSEMBLES!!!!!

fuck!
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      11-12-2019, 11:03 AM   #6
SamelCamel
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I thought it was the OFHG screw. If it falls out, the OFHG leaks.


-Sam
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      11-20-2019, 11:00 AM   #7
elitesales305
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Quote:
Originally Posted by SamelCamel View Post
I thought it was the OFHG screw. If it falls out, the OFHG leaks.


-Sam
Noooo thatll happen with or without the screw
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      11-20-2019, 11:01 AM   #8
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Looks like an undertray screw
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      11-20-2019, 11:42 AM   #9
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Looks like the screw that holds the intake pipe to the valve cover near cylinder 1 spark plug, and beside the blow by heater.

Can see it in this pic.
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      11-20-2019, 11:51 AM   #10
austinaslink
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I agree with mighty mouse ^. I don't think the threads look the same as the standard underbody screws.

- Austin
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      11-20-2019, 02:40 PM   #11
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Seems like a undertray screw..
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      11-20-2019, 03:39 PM   #12
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Threads are to far apart and to long to be underbody. I believe mightmouse is right that it's the screw that mounts part of the intake. But I don't remember tampering with this for thermostat/water pump or OFHG.
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      11-21-2019, 12:36 AM   #13
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      11-24-2019, 05:36 PM   #14
moorer11
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Quote:
Originally Posted by MightyMouseTech View Post
Looks like the screw that holds the intake pipe to the valve cover near cylinder 1 spark plug, and beside the blow by heater.

Can see it in this pic.
That's it!
Thanks!
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      11-24-2019, 08:27 PM   #15
moorer11
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Quote:
Originally Posted by christofis135i View Post
Threads are to far apart and to long to be underbody. I believe mightmouse is right that it's the screw that mounts part of the intake. But I don't remember tampering with this for thermostat/water pump or OFHG.
Yeah...I forgot to add I did the plugs, too.
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