Diagnostic Port Bolt

[IceyVert]

Does anyone know the size of the bolt that holds the diagnostic port bracket to the intake manifold? Mine went MIA and cannot easily locate a size online. Thanks! Sent from my iPhone using Tapatalk

[mike87]

Does anyone know the size of the bolt that holds the diagnostic port bracket to the intake manifold? Mine went MIA and cannot easily locate a size online. Thanks! Sent from my iPhone using Tapatalk

I just rebuilt my M20 and I believe there was a stud on the intake manifold and it was actually a nut that held it down. I believe it should be an M8 stud. See part #22 on this diagram:

https://www.realoem.com/bmw/enUS/showparts?id=BB13-USA-07-1987-E30-BMW-325i&diagId=11_0859

Good luck

[IceyVert]

Thanks!! Sent from my iPhone using Tapatalk

[ADEN]

13mm nut. Stud is in manifold body.

[IceyVert]

M8 x 1.25 worked perfectly. Sent from my iPhone using Tapatalk