BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > Suspension | Brakes | Chassis > M2 Springs and Shocks Swap Guide

Post Reply
 
Thread Tools Search this Thread
      01-07-2021, 11:51 PM   #1
FaRKle!
Brigadier General
4007
Rep
3,535
Posts

Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA

iTrader: (4)

Garage List
M2 Springs and Shocks Swap Guide

So I've seen a good amount of videos covering spring only swaps, but few that really cover the whole process of springs and dampers. And none of the videos I saw talked about how tricky using the appropriate passthrough socket for the rear damper can be. Also, below you'll see the convenient torque spec table I made so you can print it out and post it in your garage.

Well here's my take on the work, and making sure you have the right passthrough tools to do it.

Quote:
Originally Posted by Index
0:00 Intro
0:21 Tools overview
2:23 Engine bay parts removal/loosening
4:22 Removing the wheels
4:47 Front wheel well components removal
7:22 Removing the front spring and strut
7:57 Front spring components overview
8:25 Front strut/spring unit assembly
10:13 Front strut/spring assembly installation
11:42 Front wheel well components installation
13:31 Securing things in the engine bay
15:03 Rear headlight levelling sensor notes
15:36 Rear damper removal
16:31 Rear spring removal
17:47 Rear spring overview
19:14 Rear damper unit disassembly
20:53 Rear damper components overview
22:02 Rear damper unit assembly
23:09 Rear spring installation
24:03 Rear damper installation
24:52 Camber arm and components securing
26:52 Wheels installation
__________________
-328d Wagon Build Log (with helpful reference links)
-My YouTube Channel for some of the best DIYs and in depth information

Please don't PM me for suspension recommendations unless interested in paid private consultations.
Appreciate 15
      01-08-2021, 06:17 AM   #2
H20neun
Private
H20neun's Avatar
Germany
114
Rep
89
Posts

Drives: M2 LCI
Join Date: Jun 2018
Location: Stuttgart

iTrader: (0)

thanks! I plan to do kw has install soon so this will be very helpful
Appreciate 1
      01-08-2021, 08:24 AM   #3
detroitm2
Colonel
detroitm2's Avatar
United_States
2428
Rep
2,526
Posts

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

iTrader: (2)

Garage List
2018 BMW M2  [0.00]
Nice.

For the rears, I just put a pair of vice grips with a rubber sheet (to protect it) on the shock shaft and hit it with my impact a couple times, came right off.
__________________
2018 M2 - Daily Driver/Track Car
Motorcity BMWCCA Member
Instagram | YouTube
Appreciate 0
      01-08-2021, 09:04 AM   #4
chief1richard
Life is on the Track, the rest is just waiting.
chief1richard's Avatar
United_States
381
Rep
731
Posts

Drives: At the point of 7,000 RPM's
Join Date: May 2017
Location: Boston

iTrader: (0)

Garage List
2018 M2  [0.00]
[QUOTE=FaRKle!;27095935]So I've seen a good amount of videos covering spring only swaps, but few that really cover the whole process of springs and dampers. And none of the videos I saw talked about how tricky using the appropriate passthrough socket for the rear damper can be. Also, below you'll see the convenient torque spec table I made so you can print it out and post it in your garage.

Well here's my take on the work, and making sure you have the right passthrough tools to do it.


Well done! Best DYI video I have seen on installing Coilovers.I will be doing this soon if I can ever decide on which suspension to go with. Not knowing that Autozone Pass Through would have hung me up for hours.
__________________
At a Point above 7,000 RPM.

Last edited by chief1richard; 01-08-2021 at 09:33 AM..
Appreciate 0
      01-08-2021, 09:29 AM   #5
FaRKle!
Brigadier General
4007
Rep
3,535
Posts

Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA

iTrader: (4)

Garage List
Quote:
Originally Posted by detroitm2 View Post
Nice.

For the rears, I just put a pair of vice grips with a rubber sheet (to protect it) on the shock shaft and hit it with my impact a couple times, came right off.
While this works in a pinch, it's not advised to use an impact on the top nuts (and BMW specifically says not to in ISTA) because it can loosen the nut on the opposite side of the shaft inside the damper that secures the piston/shim stack.
Appreciate 0
      01-08-2021, 09:34 AM   #6
nioh_lbbm2
Lieutenant Colonel
nioh_lbbm2's Avatar
1717
Rep
1,899
Posts

Drives: M2
Join Date: Mar 2018
Location: California

iTrader: (0)

I love the amount of work you put into your videos with helpful time breakdowns and descriptions
Appreciate 0
      01-08-2021, 01:14 PM   #7
Mospeada
Private
No_Country
48
Rep
91
Posts

Drives: M
Join Date: Aug 2020
Location: DC

iTrader: (0)

awesome vid i have seen his other vids before. very complete and informative. torque specs are crucial
Appreciate 0
      01-08-2021, 05:20 PM   #8
2020M2Competition
Lieutenant
2020M2Competition's Avatar
429
Rep
433
Posts

Drives: Yes
Join Date: Oct 2016
Location: Florida

iTrader: (1)

Another great video

Many thanks

Keep up the good work!

Can we assume that a suspension upgrade is in the works and, if so, can you give us a hint on what you're planning?
Appreciate 0
      01-08-2021, 10:21 PM   #9
Mospeada
Private
No_Country
48
Rep
91
Posts

Drives: M
Join Date: Aug 2020
Location: DC

iTrader: (0)

would love to see camber plate replacement and after market shock replacement. torques to use for CF brace, aluminum brace, camber plate bolts, the whole works...
Appreciate 0
      01-08-2021, 11:04 PM   #10
FaRKle!
Brigadier General
4007
Rep
3,535
Posts

Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA

iTrader: (4)

Garage List
Thanks for the feedback guys!

Quote:
Originally Posted by 2020M2Competition View Post
Can we assume that a suspension upgrade is in the works and, if so, can you give us a hint on what you're planning?
For me personally, I probably won't be changing the suspension (dampers/springs) till mid or late next year (I'm keeping an eye out for a set of used H&R coilovers to use as donor parts).

That said, I've been in contact with another M2C owner who's having Fat Cat Motorsports do some bespoke dampers for him. That's one of the main reasons why I was pulling my suspension apart, so they could measure our dampers/springs, wheel travel, and motion ratios to tune his dampers accordingly. Eventually I'll be using them for my custom project.


Quote:
Originally Posted by Mospeada View Post
would love to see camber plate replacement and after market shock replacement. torques to use for CF brace, aluminum brace, camber plate bolts, the whole works...
I'm sure I'll get there eventually . Either that I need a friend getting camber plates for their F8x that wants me to install, haha.
__________________
-328d Wagon Build Log (with helpful reference links)
-My YouTube Channel for some of the best DIYs and in depth information

Please don't PM me for suspension recommendations unless interested in paid private consultations.
Appreciate 0
      01-09-2021, 09:33 PM   #11
David.m
Lieutenant
437
Rep
551
Posts

Drives: M2 LCI 6MT BSM
Join Date: Aug 2016
Location: Australia

iTrader: (0)

Great video.

Just to add re the rear strut top hats, the found the Schwaben 18mm strut nut socket got in the hole on one side but not the other. The problem was a small lip of alloy (looked to be from a join in the mould), I just filed off the excess alloy to make a smooth wall for the problem side and the socket went in fine (& of course you can then tighten to correct torque).
Appreciate 0
      01-09-2021, 11:25 PM   #12
FaRKle!
Brigadier General
4007
Rep
3,535
Posts

Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA

iTrader: (4)

Garage List
Quote:
Originally Posted by David.m View Post
Great video.

Just to add re the rear strut top hats, the found the Schwaben 18mm strut nut socket got in the hole on one side but not the other. The problem was a small lip of alloy (looked to be from a join in the mould), I just filed off the excess alloy to make a smooth wall for the problem side and the socket went in fine (& of course you can then tighten to correct torque).
Wow that's lucky! Mine wasn't even close to fitting the rear top mount.
__________________
-328d Wagon Build Log (with helpful reference links)
-My YouTube Channel for some of the best DIYs and in depth information

Please don't PM me for suspension recommendations unless interested in paid private consultations.
Appreciate 0
      01-10-2021, 08:08 AM   #13
chief1richard
Life is on the Track, the rest is just waiting.
chief1richard's Avatar
United_States
381
Rep
731
Posts

Drives: At the point of 7,000 RPM's
Join Date: May 2017
Location: Boston

iTrader: (0)

Garage List
2018 M2  [0.00]
Shwaben Pass Through Sockets

I have a set I just bought of the Shwaben Pass Throughs. Be aware that these sockets are very weak and not meant to be used with high torque. I was tightening a Ball Joint with one, and bent like a pretzel. Now I need to replace the 18mm one, which is the only one I needed when I bought the whole set.
__________________
At a Point above 7,000 RPM.
Appreciate 0
      05-05-2021, 02:09 PM   #14
2020M2Competition
Lieutenant
2020M2Competition's Avatar
429
Rep
433
Posts

Drives: Yes
Join Date: Oct 2016
Location: Florida

iTrader: (1)

Any thoughts with respect to using the Bilstein B6 HD replacement struts/shocks with the factory top mounts?

As you noted in your video, the Bilsteins come with an even larger 22mm top nut

Do you think it would be possible to use the stock 18mm nuts on the Bilsteins?

I believe they both use M14 x 1.5 threads
Appreciate 0
      05-06-2021, 11:19 PM   #15
FaRKle!
Brigadier General
4007
Rep
3,535
Posts

Drives: 328d Wagon, M2 Comp, i4 eD35
Join Date: Sep 2016
Location: Bay Area, CA

iTrader: (4)

Garage List
Quote:
Originally Posted by 2020M2Competition View Post
Any thoughts with respect to using the Bilstein B6 HD replacement struts/shocks with the factory top mounts?

As you noted in your video, the Bilsteins come with an even larger 22mm top nut

Do you think it would be possible to use the stock 18mm nuts on the Bilsteins?

I believe they both use M14 x 1.5 threads
There's no issues using B6 with the factory top mounts. Even though the nut itself is larger, they should both have the same thread size (this isn't true for all aftermarket dampers). If the threads are the same you can use the factory all metal top nut, but be careful when torquing it to the BMW metal nut spec. Bilstein uses softer metal for their top mount posts, and at least when they use a hex counter hold, the hex will strip if trying to use BMW torque specs. If you look at the torque specs Bilstein puts in their manuals for their nylocs, you'll see it's lower than BMW's.
__________________
-328d Wagon Build Log (with helpful reference links)
-My YouTube Channel for some of the best DIYs and in depth information

Please don't PM me for suspension recommendations unless interested in paid private consultations.
Appreciate 1
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 08:06 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