BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > Suspension | Brakes | Chassis > Q's about installing used M Performance Suspension. Please reply.

Post Reply
 
Thread Tools Search this Thread
      09-03-2020, 08:36 AM   #23
M Fifty
Banned
844
Rep
1,962
Posts

Drives: M2 & 330CI
Join Date: May 2018
Location: The Interweb

iTrader: (0)

Yup. A Torx bit Is preferred (as the picture shows).

However, the first time I did it I didn't notice that...
Appreciate 1
VisualEcho6625.50
      09-03-2020, 08:56 AM   #24
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Quote:
Originally Posted by M Fifty View Post
Yup. A Torx bit Is preferred (as the picture shows).

However, the first time I did it I didn't notice that...
Yeah, that's the other one I was concerned about. It's not the tools themselves, it's if they need to be deep, or shallow, etc. I think I have it worked out though. Looks like it easily fits far enough through.
Attached Images
  
Appreciate 0
      09-03-2020, 11:37 AM   #25
Wei718
Major
Wei718's Avatar
340
Rep
1,089
Posts

Drives: 718 GT4
Join Date: Nov 2012
Location: Hayward

iTrader: (9)

Quote:
Originally Posted by VisualEcho View Post
Yeah, that's the other one I was concerned about. It's not the tools themselves, it's if they need to be deep, or shallow, etc. I think I have it worked out though. Looks like it easily fits far enough through.
Since you’re replacing that nut anyway if it’s giving you issues just impact that little sucker off.
Appreciate 0
      09-03-2020, 11:58 AM   #26
omasou
Colonel
omasou's Avatar
United_States
2080
Rep
2,999
Posts

Drives: BMWs
Join Date: Apr 2016
Location: US

iTrader: (4)

Garage List
2023 BMW S1000RR  [0.50]
2022 BMW F900XR  [3.00]
2022 BMW X6 40i  [0.50]
2020 BMW M2C  [9.50]
If you don't already have a set of pass-thorough tools. This is a nice little set that I bought b/c it has most sizes that I might need in grab and go case.

http://www.searshometownstores.com/p...-Set-With-Case



On a side note. It's such same that I couldn't find this on craftsman.com and that I had to use Google to find it. Seems Sears IT still cannot create a basic web site. Sad really.
Appreciate 1
VisualEcho6625.50
      09-03-2020, 12:35 PM   #27
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Quote:
Originally Posted by omasou View Post
If you don't already have a set of pass-thorough tools. This is a nice little set that I bought b/c it has most sizes that I might need in grab and go case.

http://www.searshometownstores.com/p...-Set-With-Case



On a side note. It's such same that I couldn't find this on craftsman.com and that I had to use Google to find it. Seems Sears IT still cannot create a basic web site. Sad really.
That does look pretty awesome. I just got a bare-bones set for the job, but would definitely like to have a comprehensive set.
Appreciate 0
      09-03-2020, 05:34 PM   #28
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
And the hits just keep on coming.
Attached Images
   
Appreciate 0
      09-03-2020, 06:09 PM   #29
detroitm2
Colonel
detroitm2's Avatar
United_States
2427
Rep
2,526
Posts

Drives: 2018 M2
Join Date: Aug 2018
Location: Michigan

iTrader: (2)

Garage List
2018 BMW M2  [0.00]
Quote:
Originally Posted by VisualEcho View Post
And the hits just keep on coming.
Have the same spring compressor. Much nicer than the old ones that want to kill you all the time.
__________________
2018 M2 - Daily Driver/Track Car
Motorcity BMWCCA Member
Instagram | YouTube
Appreciate 1
VisualEcho6625.50
      09-05-2020, 04:17 PM   #30
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Quote:
Originally Posted by M Fifty View Post
That's looking comprehensive as a set of tools....
I was going to ask you about the whole alignment/adjustment/settling thing. I'm confused about the order.

Do I drive the car a week, adjust the front to my liking, then get it aligned?

Or get it aligned asap, then possibly adjust the front to my liking?

Adjust the front now, drive a week, then align?

Keep in mind my suspension was used, just under 5K miles on it, so I'm not sure what kind of settling there will be. As it is, with 7 threads showing, it looks high in the front to me.
Appreciate 0
      09-05-2020, 04:32 PM   #31
M Fifty
Banned
844
Rep
1,962
Posts

Drives: M2 & 330CI
Join Date: May 2018
Location: The Interweb

iTrader: (0)

Unless you have 150kg to pop in the front seats, it's going to be tricky to get it set correctly during installation. In the meantime, set it to what the fitting instructions say with the car on a smooth and above all level surface (concrete garage floor is good, as they tend to self-level when poured and screeded), then - assuming you're confident you got everything correctly tightened - go drive it. They get it 4-wheel aligned after a couple of weeks, as they will have the means to ballast it.

Mine was correctly set, but has since settled slightly lower. Subsequently, I fitted the M2C front braces and top mounts, which led to some adjustment of the fronts.

HTH.
Appreciate 0
      09-05-2020, 05:43 PM   #32
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Quote:
Originally Posted by M Fifty View Post
Unless you have 150kg to pop in the front seats, it's going to be tricky to get it set correctly during installation. In the meantime, set it to what the fitting instructions say with the car on a smooth and above all level surface (concrete garage floor is good, as they tend to self-level when poured and screeded), then - assuming you're confident you got everything correctly tightened - go drive it. They get it 4-wheel aligned after a couple of weeks, as they will have the means to ballast it.

Mine was correctly set, but has since settled slightly lower. Subsequently, I fitted the M2C front braces and top mounts, which led to some adjustment of the fronts.

HTH.
Got it.

After alignment, can I adjust the front height a bit without needing another alignment?
Appreciate 0
      09-05-2020, 06:51 PM   #33
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
OK, so this is a tale of 3 nuts, and 10 bolts.

The first picture shows 3 nuts.

The middle one is what came on the top of my front, and rear struts.

I was advised to buy 2 of the left one, which is the same, but shorter, but had no where to put them.

The nut on the far right came lightly screwed to the top of my used M Performance suspension, but hadn't been used.



I ended up using the 2 new bolts (middle) on the front struts, and re-using the old nuts on the rears. Not sure if that's right, but it is what it is.

Anybody got any ideas on this one?
Attached Images
 

Last edited by VisualEcho; 09-05-2020 at 07:26 PM..
Appreciate 0
      09-05-2020, 06:53 PM   #34
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Now the tale of the front strut bolts.

The bolt on the right is the OEM bolt, but BMW sent me the bolt on the left as the replacement. I didn't use them. Am I being too particular? Should I go ahead and use them even though they are obviously different?
Attached Images
 
Appreciate 0
      09-05-2020, 06:56 PM   #35
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Oh yeah, and the car is done. Quick driveway pic with the phone. It looks even here, but the front is still a bit high with 3.5 threads showing. Hope it settles a bit. More pix soon.
Attached Images
 
Appreciate 1
Bee Pee1737.50
      09-05-2020, 07:17 PM   #36
Wei718
Major
Wei718's Avatar
340
Rep
1,089
Posts

Drives: 718 GT4
Join Date: Nov 2012
Location: Hayward

iTrader: (9)

Quote:
Originally Posted by VisualEcho View Post
Oh yeah, and the car is done. Quick driveway pic with the phone. It looks even here, but the front is still a bit high with 3.5 threads showing. Hope it settles a bit. More pix soon.
Looks great!
Appreciate 1
VisualEcho6625.50
      09-06-2020, 03:19 AM   #37
M Fifty
Banned
844
Rep
1,962
Posts

Drives: M2 & 330CI
Join Date: May 2018
Location: The Interweb

iTrader: (0)

Quote:
Originally Posted by VisualEcho View Post
Oh yeah, and the car is done. Quick driveway pic with the phone. It looks even here, but the front is still a bit high with 3.5 threads showing. Hope it settles a bit. More pix soon.
Looking good!
Appreciate 1
VisualEcho6625.50
      09-06-2020, 03:22 AM   #38
M Fifty
Banned
844
Rep
1,962
Posts

Drives: M2 & 330CI
Join Date: May 2018
Location: The Interweb

iTrader: (0)

Quote:
Originally Posted by VisualEcho View Post
Now the tale of the front strut bolts.

The bolt on the right is the OEM bolt, but BMW sent me the bolt on the left as the replacement. I didn't use them. Am I being too particular? Should I go ahead and use them even though they are obviously different?
31306869931 Hex bolt with washer M8X30-10.9 is the one on the right, and is listed for the M2 as attaching the strut top to the body shell in realoem.

The one on the left is 31307855400 Hexagon screw with flange M8X33 10.9 ZNS3 - which is what's in the list of parts on the previous page - and is listed in realoem as part of the retrofit kit for the MPS.

In the M3/4, 31307855400 is listed as attaching the strut top to the body shell when using the reinforcement ring.

HTH

Last edited by M Fifty; 09-06-2020 at 03:39 AM..
Appreciate 0
      09-06-2020, 03:52 AM   #39
M Fifty
Banned
844
Rep
1,962
Posts

Drives: M2 & 330CI
Join Date: May 2018
Location: The Interweb

iTrader: (0)

Quote:
Originally Posted by VisualEcho View Post
OK, so this is a tale of 3 nuts, and 10 bolts.

The first picture shows 3 nuts.

The middle one is what came on the top of my front, and rear struts.

I was advised to buy 2 of the left one, which is the same, but shorter, but had no where to put them.

The nut on the far right came lightly screwed to the top of my used M Performance suspension, but hadn't been used.



I ended up using the 2 new bolts (middle) on the front struts, and re-using the old nuts on the rears. Not sure if that's right, but it is what it is.

Anybody got any ideas on this one?
The one on the left - 33527850600 - should go on the rear. The one in the middle -34339806226 - should go on the front.

If they gave you 4 of the ones on the left when the part numbers on the list show 2 of each, then maybe take them back and exchange them.

If you decide to change the nuts on the rear, you'll be relieved to hear that as it's possible to change the upper mounting without removing the damper, just changing the nut won't be a problem.
Appreciate 0
      09-06-2020, 07:53 AM   #40
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Quote:
Originally Posted by M Fifty View Post
The one on the right, is listed for the M2 oem.

The one on the left is listed as part of the retrofit kit for the MPS.

...when using the reinforcement ring.
OK, so I should go ahead and use the new bolts, or not?

And if I do, I just take out one at a time, in a star pattern, torquing it to spec as I go? I can't imagine removing them all at the same time, but that would probably be ok as well, no?



Quote:
Originally Posted by M Fifty View Post
The one on the left should go on the rear.
OK, but I wonder why, when what came off of the car is the same as the front. Is it because of the MPS?

Quote:
Originally Posted by M Fifty View Post
If you decide to change the nuts on the rear, you'll be relieved to hear that as it's possible to change the upper mounting without removing the damper, just changing the nut won't be a problem.
That's good to know, but if I do it, I'll need some different tools, or a different technique. The rear struts weren't kind to me at all. I used what I thought was the correct technique, but the nut was just going all the way down, and then I was trying to torque it to spec, which isn't much at all, and it just wouldn't go. It had me questioning if I was suppose to torque the nut somewhere on the shaft instead. The front was much the same, nut went all the way down on the threads, then I tried to torque it to spec, but it was quite hard.

And thank you for all your input man, much appreciation!
Appreciate 0
      09-06-2020, 07:55 AM   #41
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Also, for anyone reading this, SKIP the paper gaskets unless your car is older, mine were reusable for sure.

Beyond that, I ended up not using the fronts because they were wrong. And even if I would have cut them to be correct, the holes don't line up.
Attached Images
  
Appreciate 1
Wei718339.50
      09-06-2020, 08:16 AM   #42
Wei718
Major
Wei718's Avatar
340
Rep
1,089
Posts

Drives: 718 GT4
Join Date: Nov 2012
Location: Hayward

iTrader: (9)

Quote:
Originally Posted by VisualEcho View Post
Also, for anyone reading this, SKIP the paper gaskets unless your car is older, mine were reusable for sure.

Beyond that, I ended up not using the fronts because they were wrong. And even if I would have cut them to be correct, the holes don't line up.
I ordered the hardware kit along with my coils, I’m still debating if I should remove my strut and spring by releasing the nut on the strut using a jack to support the lower control arm. Going this route will save me a bunch of time from removing my carbon fiber brace and leaving my top hat alone and no need to use spring compressor. I will have a bunch of extra hardware laying around.
Appreciate 1
VisualEcho6625.50
      09-06-2020, 09:26 AM   #43
detroitm2
Colonel
detroitm2's Avatar
United_States
2427
Rep
2,526
Posts

Drives: 2018 M2
Join Date: Aug 2018
Location: Michigan

iTrader: (2)

Garage List
2018 BMW M2  [0.00]
Quote:
Originally Posted by VisualEcho View Post
Also, for anyone reading this, SKIP the paper gaskets unless your car is older, mine were reusable for sure.

Beyond that, I ended up not using the fronts because they were wrong. And even if I would have cut them to be correct, the holes don't line up.
It looks like you just needed to rotate that gasket another bit to make it fit.
__________________
2018 M2 - Daily Driver/Track Car
Motorcity BMWCCA Member
Instagram | YouTube
Appreciate 0
      09-06-2020, 09:38 AM   #44
VisualEcho
Banned
VisualEcho's Avatar
United_States
6626
Rep
4,145
Posts

Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

iTrader: (1)

Garage List
2018 BMW M2  [10.00]
Quote:
Originally Posted by Wei718 View Post
I ordered the hardware kit along with my coils, I’m still debating if I should remove my strut and spring by releasing the nut on the strut using a jack to support the lower control arm. Going this route will save me a bunch of time from removing my carbon fiber brace and leaving my top hat alone and no need to use spring compressor. I will have a bunch of extra hardware laying around.
The video I used was this one:


He does it the hard way IMO. If I were to do it again, I'd do it differently, leaving the strut bolted to the top and using the weight of the brake/knuckle assembly to pull it out. As it was, I did it his way, then had to bolt the strut back up, and do it the other way to get it out. Both sides.

I think you can do it any way you want, but don't be afraid of the spring compressor, it was only $119 and worked like a charm, so easy to use.

I'm going to sell the entire kit I used to make this install as used only once so someone doesn't have to search for it all.



Quote:
Originally Posted by detroitm2 View Post
It looks like you just needed to rotate that gasket another bit to make it fit.
Not at all. Tried it every possible way, and nothing worked at all.
Appreciate 1
Wei718339.50
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:27 AM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST