What is the nut size on the rear shock top hat for the adaptive suspension?

XutvJet · 05-06-2019, 12:11 PM

I'll be installing my Dinan springs on my M235 and I cannot figure out what the nut size is on the rear shock top hat for the adaptive suspension. Some posts/videos I've seen say 15mm and others say 18mm. I'd like to know for certain to make sure I have the correct pass-through socket. I need to remove the top hat in order to install the new bumpstops. Thanks.

dradernh · 05-06-2019, 03:16 PM

Quote:

Originally Posted by XutvJet

I'll be installing my Dinan springs on my M235 and I cannot figure out what the nut size is on the rear shock top hat for the adaptive suspension. Some posts/videos I've seen say 15mm and others say 18mm. I'd like to know for certain to make sure I have the correct pass-through socket. I need to remove the top hat in order to install the new bumpstops. Thanks.

Is that the #8 nut in this diagram?

XutvJet · 05-06-2019, 11:13 PM

Yep. I wish BMW would provide the sizes.

dradernh · 05-07-2019, 11:17 AM

Quote:

Originally Posted by XutvJet

I cannot figure out what the nut size is on the rear shock top hat for the adaptive suspension. Some posts/videos I've seen say 15mm and others say 18mm. I'd like to know for certain to make sure I have the correct pass-through socket.

It's a 16mm flanged nut on my M240i (same part nos. as the M235i: 07119907135 & 33506896360 - pick one, I guess).

XutvJet · 05-08-2019, 04:27 PM

Thank you

05-06-2019, 12:11 PM	#1
XutvJet Major General 5549 Rep 5,369 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	What is the nut size on the rear shock top hat for the adaptive suspension? I'll be installing my Dinan springs on my M235 and I cannot figure out what the nut size is on the rear shock top hat for the adaptive suspension. Some posts/videos I've seen say 15mm and others say 18mm. I'd like to know for certain to make sure I have the correct pass-through socket. I need to remove the top hat in order to install the new bumpstops. Thanks. __________________ The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
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05-06-2019, 11:13 PM	#3
XutvJet Major General 5549 Rep 5,369 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	Yep. I wish BMW would provide the sizes.
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05-08-2019, 04:27 PM	#5
XutvJet Major General 5549 Rep 5,369 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	Thank you __________________ The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
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