[huifengruxun]

Hi all,

I've been looking for the exact tightness to install the OEM spark plug to my car. Some youtube video mentions 17 ft-lb while some other mentions 22 ft-lb. I couldn't find it anywhere else. So I have to turn to this mighty forum for expert opinion. Please help! Thank you in advance.

[Billfitz]

Torque specs for everything are listed at https://www.newtis.info/

[huifengruxun]

Originally Posted by Billfitz

Torque specs for everything are listed at https://www.newtis.info/

Awesome! Thanks a lot!

[thejeremyman9]

Originally Posted by huifengruxun

Awesome! Thanks a lot!

Good thread to read through if you are doing plugs: https://f30.bimmerpost.com/forums/sh....php?t=1709198

[huifengruxun]

I got the plugs from dealer and it has the tightness on the packaging. Problem solved.

[Billfitz]

Make sure you use a wrench with Nm markings and not foot pounds.

[huifengruxun]

Originally Posted by Billfitz

Make sure you use a wrench with Nm markings and not foot pounds.

Thanks for the reminder. I believe 23 Nm is actually 17 ft-lb, right? So yeah, will make sure to apply the right number accordingly.

[huifengruxun]

Originally Posted by thejeremyman9

Good thread to read through if you are doing plugs: https://f30.bimmerpost.com/forums/sh....php?t=1709198

What is MHD 2+ tuning? I am still very new to this. Not planning to tune anything just yet. Does it require coding to tune MHD 2+? If so, I am not there yet. But thanks. I'm sure I will be there some day :-)

[thejeremyman9]

Originally Posted by huifengruxun

What is MHD 2+ tuning? I am still very new to this. Not planning to tune anything just yet. Does it require coding to tune MHD 2+? If so, I am not there yet. But thanks. I'm sure I will be there some day :-)

It's a flash tune... if you dont know what it is, don't worry about it, as it will not affect spark plug torque.