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M2 Technical Topics > Mechanical Maintenance: Break-in | Oil & Fluids | Servicing | TSB | Recalls > Corner brace - bolt torque value

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      05-20-2018, 08:13 AM   #1
Japper69
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Corner brace - bolt torque value

Anybody have access to ISTA and know what the correct make up torque is for the bolts that hold the corner brace on the M2 for refitting after air filter replacement?
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      05-20-2018, 08:26 AM   #2
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When in doubt 23-27 ft lbs
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      05-20-2018, 03:53 PM   #3
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      04-01-2020, 04:49 AM   #4
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28Nm, see:

4AZ Front end strut to body | F87 | 28 Nm

https://www.newtis.info/tisv2/a/en/f...ilter/H0fDEBhO
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      04-10-2020, 12:52 PM   #5
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It annoys me that when you buy torque wrenches here in the US, almost all of them have the primary scale as lb-ft rather than Nm...

Most fasteners have swapped to metric, as have the torque specs, so why are the torque wrenches labelled in simply numbers of lb-ft on the front, and odd Nm scales with each line meaning some fraction of a unit etc.

I resorted to buying my torque wrenches from Europe and importing them to solve this problem, but I wish US tool suppliers would offer at least the option for Nm primary scale.

... rant over!
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      04-10-2020, 02:13 PM   #6
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I find it interesting that even here in Europe where metric is the standard, socket sets still come in 1/4", 3/8", and 1/2" drive.

28Nm...good to know, thanks!
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      04-10-2020, 08:49 PM   #7
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Quote:
Originally Posted by Nezil View Post
It annoys me that when you buy torque wrenches here in the US, almost all of them have the primary scale as lb-ft rather than Nm...

Most fasteners have swapped to metric, as have the torque specs, so why are the torque wrenches labelled in simply numbers of lb-ft on the front, and odd Nm scales with each line meaning some fraction of a unit etc.

I resorted to buying my torque wrenches from Europe and importing them to solve this problem, but I wish US tool suppliers would offer at least the option for Nm primary scale.

... rant over!
Like how we have tire section width in mm but the wheel diameter is in inches?
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      04-11-2020, 04:26 AM   #8
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Quote:
Originally Posted by Nezil View Post
It annoys me that when you buy torque wrenches here in the US, almost all of them have the primary scale as lb-ft rather than Nm...

Most fasteners have swapped to metric, as have the torque specs, so why are the torque wrenches labelled in simply numbers of lb-ft on the front, and odd Nm scales with each line meaning some fraction of a unit etc.

I resorted to buying my torque wrenches from Europe and importing them to solve this problem, but I wish US tool suppliers would offer at least the option for Nm primary scale.

... rant over!
Even when the US tries to use metric...we fail. (e.g. USA: Liter, rest of the world: Litre )
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      06-21-2020, 01:29 PM   #9
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Can someone please confirm if the M2C only has two (2) M8x32x1.25 hex bolt with washers at the top of each brace? Each bolt currently has a receiving fastening nut on the bottom of the aluminum brace, to fasten the bolt, however, the top most slot does not have a way to fasten the bolt. This is why I want to confirm my finding. Thanks!



I have seen DIY videos for the brace removal, however, these videos have been on a M4 platform, which has different dimensions in the engine bay. The M4 has three (3) of these bolts.
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      06-22-2020, 02:11 PM   #10
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The M4 platforms seem to have an extension rod that connects the aluminum brace to a mounted point near the corner of the windshield. This extension has a fastener which would accommodate the third bolt.



Hopefully someone else can validate this.
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      06-22-2020, 02:12 PM   #11
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debug, you're right about M3 / M4 having this fastener. I cannot confirm what's there on the M2C, but I can say that you don't need anything there on an M2 retrofit.

I think I saw a post where one user put a nut on the other side so that it looked more complete, but it's not necessary.
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