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      02-10-2020, 02:38 AM   #155
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Quote:
Originally Posted by Anthony1s View Post
In your pictures... are those the M2 covers, the M2C covers, or the M3/4 covers?
Quote:
Originally Posted by M Fifty View Post
Pics of the M2C items taken during a visit to Cotswold:
Quote:
Originally Posted by 3t3p View Post
I think I've got M2C ones but I'll have to check.
3t3p - the ones you have on in your CFRP photos is for OG M2.

The ones photographed by M50 in his post above are the correct strut covers for M2C/M3/M4 - all the same part # I believe. These are the ones I have installed on my car and they cover the whole strut top incl. M3/M4 reinforcement rings I've retrofitted.

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      02-10-2020, 11:11 AM   #156
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Quote:
Originally Posted by Bee Pee View Post
3t3p - the ones you have on in your CFRP photos is for OG M2.

The ones photographed by M50 in his post above are the correct strut covers for M2C/M3/M4 - all the same part # I believe. These are the ones I have installed on my car and they cover the whole strut top incl. M3/M4 reinforcement rings I've retrofitted.

BP
I was gonna say the same thing. Was looking at M2C engine bays in google and his covers aren't the same. I guess he ordered the wrong part or was sent the wrong part.
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      02-10-2020, 02:29 PM   #157
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So i've just ordered new versions of what came in my car anyway?!

x1- Left engine hood/topmount sealing: 51767307863
x1- Right engine hood/topmount sealing: 51767307864

is what I ordered

My steel braces are now out and to be honest the car feels better without them. I think with them the front end is too rigid.

The car seems really fluid now and is a joy to drive just around town. I can see why BMW didn't kill themselves to get the braces altered to fit on the M2C, it doesn't need it/is better without.

For the time being mine are staying out.
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      02-10-2020, 02:53 PM   #158
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Quote:
Originally Posted by 3t3p View Post
So i've just ordered new versions of what came in my car anyway?!

x1- Left engine hood/topmount sealing: 51767307863
x1- Right engine hood/topmount sealing: 51767307864

is what I ordered

My steel braces are now out and to be honest the car feels better without them. I think with them the front end is too rigid.

The car seems really fluid now and is a joy to drive just around town. I can see why BMW didn't kill themselves to get the braces altered to fit on the M2C, it doesn't need it/is better without.

For the time being mine are staying out.
Looks like it, and I think I see the problem. Realoem.com incorrectly lists the same part numbers for the M2 and M2C of those parts.

Seen here:
M2C
https://www.realoem.com/bmw/enUS/sho...diagId=41_2176

M2
https://www.realoem.com/bmw/enUS/sho...diagId=41_2176

What you want are these ones from the M4
https://www.realoem.com/bmw/enUS/sho...diagId=41_2197
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      02-10-2020, 04:23 PM   #159
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Thanks anthony, my current fitted pieces just sit on top not covering anything haha.

Can I fit them right on top without removing anything?
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      02-10-2020, 04:39 PM   #160
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Quote:
Originally Posted by 3t3p View Post
Thanks anthony, my current fitted pieces just sit on top not covering anything haha.

Can I fit them right on top without removing anything?
I never did this install, so I can't say for certain. But it looks to me like you remove this yellow cover to access it, then there might be a bolt holding the piece on somewhere in the green section, then maybe you have to remove this blue plastic rivet thing too.

Or it's simpler than that and you just remove the yellow cover then the strut tower cover just pops off.

Doesn't look hard at all either way.

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      02-11-2020, 04:35 PM   #161
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Thanks I'll get some ordered.

In day to day driving I feel more confident in placing the car, it's just a bit sharper. Even applying throttle something seems different for the better, maybe I'm full on hallucinating now

Don't miss the front steel braces, I think it's genuinely better without them so don't fret about making it work together.
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      02-12-2020, 12:12 PM   #162
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Quote:
Originally Posted by 3t3p View Post
Thanks I'll get some ordered.

In day to day driving I feel more confident in placing the car, it's just a bit sharper. Even applying throttle something seems different for the better, maybe I'm full on hallucinating now

Don't miss the front steel braces, I think it's genuinely better without them so don't fret about making it work together.

Retrofitting M4 rubber strut top covers is easy with everything else in situ.....
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      02-12-2020, 12:18 PM   #163
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Quote:
Originally Posted by Bee Pee View Post
Retrofitting M4 rubber strut top covers is easy with everything else in situ.....
Yup. While held on to the aluminium brace with plastic push rivets, they just overlap the covers circled in yellow.
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      02-12-2020, 02:07 PM   #164
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Cheers guys. And the M4 seal covers will integrate with my scuttle covers that are from my car albiet modified? Or will they only mate properly with the M4 scuttle covers?
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      02-13-2020, 01:33 PM   #165
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As they sit on top of the scuttle covers, they should be fine. You cut the original items to fit the CF brace?
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      02-13-2020, 03:59 PM   #166
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The garage did cut them yes.

The more I drive with the brace in situ the more delighted I am with the car now it's making me smile.

The car makes sense now and agree with the usual 'should have come from factory' sentiments echoed on here.

Last edited by 3t3p; 02-16-2020 at 09:28 AM..
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      03-05-2020, 02:27 PM   #167
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I'm starting the process of preparing to do this mod, and have gathered all of the parts I need from the various locations including this thread, the one linked previously, and a guy in South Korea on the F30 forum that retrofitted his 4 series. I also went through each relevant section of RealOEM for the M4, M2C and OG M2 and compared parts from each section for duplicates, and then went through the removal and installation procedure in ISTA+ for the torque settings and replacement requirements.

I thought it might be worth sharing this full parts list on here because there are some parts which aren't needed for the M2, and some which are different between the M4 and M2C. To aid in copy and pasting, I'm going to use fixed width font to create a table (and what a bitch that was to get everything lined up; forum software doesn't let you use more than 1 space at a time!) because a table would end up as an image and couldn't be copied from.

I'm fairly confident that this is correct, but feel free to comment if I've missed anything or made any mistakes. I can always go back and edit the post if need be.

The first point of confusion is that the M2 has 5 M8 bolt strut towers, and early M3 and M4 models had 3 M10 bolt towers. This results in different reinforcing rings, strut top hats and strut braces.

The next point of confusion is right and left hand drive. Many of the forum posts were from UK based owners and their part numbers are sometimes different. I'm actually British myself (shout out to my homies!), but am based in the US, so all of the parts listed here are for an OG US M2; LCI in my case, but I don't think that makes a difference.

So without further ado, here is the list:

             Description              |               BMW Description            | Part Number | Qty Needed |         Notes

                                                     - Strut Reinforcement - (Optional, and not on M2C)


Strut reinforcement                   | Reinforcement for support bearing, left  | 31302361991 | 1          |
Strut reinforcement                   | Reinforcement for support bearing, right | 31302361992 | 1          |
Longer screws for reinforcement plate | Hex screw (M8X33 10.9 ZNS3)              | 31307855400 | 10         | Renew 30 Nm + 90 Degrees

                                                                    - Aluminum Strut Brace -

Aluminum strut brace                  | Strut brace                              | 31127855855 | 1          |
Aluminum brace to strut top bolt      | Torx screw with collar (ASA M8X30)       | 31106859809 | 6          | 28 Nm
Aluminum brace to fender top bolt     | Torx screw with collar (M10X30-PC-10.9)  | 33326796225 | 2          | 34 Nm
Aluminum brace to bulkhead bolt       | Hex bolt with washer (M10X25-10.9)       | 31106854219 | 2          | Renew 56Nm + 90 Degrees
Rivnut for top of fender              | Blind rivet nut, flat headed (M10)       | 51718065070 | 2          |
Strut top hat for M2C brace           | Guide support                            | 31307853702 | 2          |
Strut top nut                         | Nut, self-locking (M14X1,5-05 ZNS3       | 34339806226 | 2          | Renew 71 Nm
Sway bar drop link nut                | Hexagon nut with collar                  | 33326768884 | 2          | Renew 56 Nm

                                                                     - Carbon CFRP Brace -

CFRP U shaped brace                   | Strut, CFRP, front end                   | 51618061631 | 1          |
CFRP to aluminum brace bolt           | Hex bolt with washer (M8X32-ZNS3)        | 11287839136 | 4          | Renew 28Nm
CFRP brace to front                   | Hex bolt with washer (M8X22-8.8-ZNS3)    | 22326760945 | 2          | Renew 28Nm

                                                                        - Plastic Trim -

Rubber strut top cover                | Left engine hood sealing                 | 51768066661 | 1          |
Rubber strut top cover                | Right engine hood sealing                | 51768066662 | 1          |
Top of fender to hood plastic         | Sealing side panel, left                 | 51768073533 | 1          |
Top of fender to hood plastic         | Sealing side panel, right                | 51768073534 | 1          |
Under window plastic cowl             | Cowl panel cover, Part 1                 | 51718073545 | 1          |
Right bulkead cover                   | Cowl panel cover, Part 2                 | 51718059699 | 1          |
Left bulkhead cover                   | Cover for units compartment              | 64318059697 | 1          |
Plastic rivet clips                   | Expanding Rivet                          | 51118174185 | 8          |

                                                                         - To return to stock -

Strut brace to strut top              | Torx screw with collar (ASA M10X20)      | 07147270121 | 2          | Renew 56 Nm + 90 Degrees
Strut brace to bulkhead bolt          | Hex bolt with washer (M10X25-10.9)       | 31106854219 | 2          | Renew 56 Nm + 90 Degrees
Strut top nut                         | Nut, self-locking (M14X1,5-05 ZNS3       | 34339806226 | 2          | Renew 71 Nm
Shorter screws w/o reinforcement      | Hex screws (M8X30-10.9)                  | 31306869931 | 10         | Renew 30 Nm + 90 Degrees


One thing to note if you choose not to do the reinforcement, or if you choose to do reinforcement separately and before you do the Aluminum strut brace, is that the top hat securing bolts and shock top nut are single use, and you'll need to replace these each time you change the suspension top hat.
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Last edited by Nezil; 03-22-2020 at 06:27 PM..
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      03-05-2020, 03:36 PM   #168
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Oh, I forgot to say, some posts had suggested that the part, "Partition, equipment area, top - 51758061866" might be needed. This is indeed different between the OG M2 and the M2C, with the M2C sharing the part with the M3 and M4, but I think the difference may be related to the S55 vs N55, and the parts appear to be identical except for a missing bolt hole on the M2C / M3 / M4 version that we have on the OG M2.

I have therefore come to the conclusion that we don't need to buy this part to do the retrofit, and if you were to buy it, it wouldn't fit correctly.

Again, please correct me if I'm wrong.
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      03-05-2020, 09:51 PM   #169
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Quote:
Originally Posted by Nezil View Post
Oh, I forgot to say, some posts had suggested that the part, "Partition, equipment area, top - 51758061866" might be needed. This is indeed different between the OG M2 and the M2C, with the M2C sharing the part with the M3 and M4, but I think the difference may be related to the S55 vs N55, and the parts appear to be identical except for a missing bolt hole on the M2C / M3 / M4 version that we have on the OG M2.

I have therefore come to the conclusion that we don't need to buy this part to do the retrofit, and if you were to buy it, it wouldn't fit correctly.

Again, please correct me if I'm wrong.
Cool. Thanks for taking the time to put this together.

According to realoem, these 3 parts already exist on the M2... therefore are not needed?

51768073533
51768073534
51718073545
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      03-05-2020, 10:47 PM   #170
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Quote:
Originally Posted by Anthony1s View Post
Cool. Thanks for taking the time to put this together.

According to realoem, these 3 parts already exist on the M2... therefore are not needed?

51768073533
51768073534
51718073545
Let me check again, it could very well be that I’ve put the wrong thing there. I think they are different between the OG M2 and the M2C / M3 / M4. It would be great if we don’t need them, but it’s more likely I put the wrong party numbers.
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      03-05-2020, 11:40 PM   #171
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Quote:
Originally Posted by Anthony1s View Post
Cool. Thanks for taking the time to put this together.

According to realoem, these 3 parts already exist on the M2... therefore are not needed?

51768073533
51768073534
51718073545
Nope, I was correct. These parts are already on the M2, but not the OG, only the M2C. If you click through the first results page on RealOEM, it lists the sub-models that feature the part. In this case, it shows the three versions of the M2C that use it (US, Euro RHD, Euro LHD).

So sadly, we do need these parts. The details are that 51718073545 is the plastic at the bottom of the windshield, which is required if you want the M2C / M3 / M4 side panels to fit correctly. 51768073533 & 4 are the plastic seals at the top of the fenders that are slightly different to clear the larger aluminium strut brace.
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      03-05-2020, 11:48 PM   #172
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Quote:
Originally Posted by Nezil View Post
Nope, I was correct. These parts are already on the M2, but not the OG, only the M2C. If you click through the first results page on RealOEM, it lists the sub-models that feature the part. In this case, it shows the three versions of the M2C that use it (US, Euro RHD, Euro LHD).

So sadly, we do need these parts. The details are that 51718073545 is the plastic at the bottom of the windshield, which is required if you want the M2C / M3 / M4 side panels to fit correctly. 51768073533 & 4 are the plastic seals at the top of the fenders that are slightly different to clear the larger aluminium strut brace.
Hmm. Thanks for checking. I was going by this, which shows they've been on the M2 since 2016, but now I think the info in these links may be wrong.

https://www.realoem.com/bmw/enUS/partxref?q=51768073533
https://www.realoem.com/bmw/enUS/partxref?q=51768073534
https://www.realoem.com/bmw/enUS/partxref?q=51718073545
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      03-06-2020, 12:01 AM   #173
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Quote:
Originally Posted by Anthony1s View Post
Hmm. Thanks for checking. I was going by this, which shows they've been on the M2 since 2016, but now I think the info in these links may be wrong.

https://www.realoem.com/bmw/enUS/partxref?q=51768073533
https://www.realoem.com/bmw/enUS/partxref?q=51768073534
https://www.realoem.com/bmw/enUS/partxref?q=51718073545
No, it’s just you have to go deeper to get to the sub models within F87 M2 LCI to see that it’s only on the M2C. The M2C is technically a variant or sub model of the M2 LCI. Click the link on the pages you linked. You need to go one level lower.
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      03-06-2020, 01:49 AM   #174
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Quote:
Originally Posted by Nezil View Post
I'm starting the process of preparing to do this mod, and have gathered all of the parts I need from the various locations including this thread, the one linked previously, and a guy in South Korea on the F30 forum that retrofitted his 4 series. I also went through each relevant section of RealOEM for the M4, M2C and OG M2 and compared parts from each section for duplicates, and then went through the removal and installation procedure in ISTA+ for the torque settings and replacement requirements.

I thought it might be worth sharing this full parts list on here because there are some parts which aren't needed for the M2, and some which are different between the M4 and M2C. To aid in copy and pasting, I'm going to use fixed width font to create a table (and what a bitch that was to get everything lined up; forum software doesn't let you use more than 1 space at a time!) because a table would end up as an image and couldn't be copied from.

I'm fairly confident that this is correct, but feel free to comment if I've missed anything or made any mistakes. I can always go back and edit the post if need be.

The first point of confusion is that the M2 has 5 M8 bolt strut towers, and early M3 and M4 models had 3 M10 bolt towers. This results in different reinforcing rings, strut top hats and strut braces.

The next point of confusion is right and left hand drive. Many of the forum posts were from UK based owners and their part numbers are sometimes different. I'm actually British myself (shout out to my homies!), but am based in the US, so all of the parts listed here are for an OG US M2; LCI in my case, but I don't think that makes a difference.

So without further ado, here is the list:

             Description              |               BMW Description            | Part Number | Qty Needed |         Notes

                                                     - Strut Reinforcement - (Optional, and not on M2C)


Strut reinforcement                   | Reinforcement for support bearing, left  | 31302361991 | 1          |
Strut reinforcement                   | Reinforcement for support bearing, right | 31302361992 | 1          |
Longer screws for reinforcement plate | Hex screw (M8X33 10.9 ZNS3)              | 31307855400 | 10         | Renew 30Nm + 90 Degrees

                                                                    - Aluminum Strut Brace -

Aluminum strut brace                  | Strut brace                              | 31127855855 | 1          |
Aluminum brace to strut top bolt      | Torx screw with collar (ASA M8X30)       | 31106859809 | 10         | 28Nm (May only need 6)
Aluminum brace to fender top bolt     | Torx screw with collar (M10X30-PC-10.9)  | 33326796225 | 2          | 34Nm
Aluminum brace to bulkhead bolt       | Hex bolt with washer (M10X25-10.9)       | 31106854219 | 2          | Renew 56Nm + 90 Degrees
Rivnut for top of fender              | Blind rivet nut, flat headed (M10)       | 51718065070 | 2          |
2 additional listed for M2C & M4      | Filister-head Screw (M8 X 18)            | 07147327937 | 2          | (May not be needed)
Strut top hat for M2C brace           | Guide support                            | 31307853702 | 2          |
Strut top nut                         | Nut, self-locking (M14X1,5-05 ZNS3       | 34339806226 | 2          | Renew 71Nm

                                                                     - Carbon CFRP Brace -

CFRP U shaped brace                   | Strut, CFRP, front end                   | 51618061631 | 1          |
CFRP to aluminum brace bolt           | Hex bolt with washer (M8X32-ZNS3)        | 11287839136 | 6          | Renew 28Nm
CFRP brace to front                   | Hex bolt with washer (M8X22-8.8-ZNS3)    | 22326760945 | 2          | Renew 28Nm

                                                                        - Plastic Trim -

Rubber strut top cover                | Left engine hood sealing                 | 51768066661 | 1          |
Rubber strut top cover                | Right engine hood sealing                | 51768066662 | 1          |
Top of fender to hood plastic         | Sealing side panel, left                 | 51768073533 | 1          |
Top of fender to hood plastic         | Sealing side panel, right                | 51768073534 | 1          |
Under window plastic cowl             | Cowl panel cover, Part 1                 | 51718073545 | 1          |
Right bulkead cover                   | Cowl panel cover, Part 2                 | 51718059699 | 1          |
Left bulkhead cover                   | Cover for units compartment              | 64318059697 | 1          |

                                                                         - To return to stock -

Strut brace to strut top              | Torx screw with collar (ASA M10X20)      | 07147270121 | 2          | Renew 56Nm + 90 Degrees
Strut brace to bulkhead bolt          | Hex bolt with washer (M10X25-10.9)       | 31106854219 | 2          | Renew 56Nm + 90 Degrees
Strut top nut                         | Nut, self-locking (M14X1,5-05 ZNS3       | 34339806226 | 2          | Renew 71Nm
Shorter screws w/o reinforcement      | Hex screws (M8X30-10.9)                  | 31306869931 | 10         | Renew 30Nm + 90 Degrees


One thing to note if you choose not to do the reinforcement, or if you choose to do reinforcement separately and before you do the Aluminum strut brace, is that the top hat securing bolts and shock top nut are single use, and you'll need to replace these each time you change the suspension top hat.
Good effort.
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      03-06-2020, 07:48 AM   #175
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Brilliant just doing this myself....so how much did you need to take off the lower Eventuri bracket / support ??
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      03-18-2020, 10:44 PM   #176
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Did the aluminium / strut top hats / reinforcement rings last night. Was a really quite easy job and took 2.5 hours start to finish.

I put the car up on the lower height of the quickjack, and used a trolley jack to lift each side, remove the strut top nut and slowly lower everything down. Un-bolted the stock top hats from the body, cleaned up the seam sealant so that the reinforcement rings seated flat, then put it all back together.

Aligning the shock through the top hat requires you to push the whole shock whilst jacking. I did this on my own (wife was asleep), but it would be far easier if you had a helper.

The difference to steering feedback is impressive, as is the increase in ride comfort. I guess the body was doing some of the suspension work previously, and that's all undamped. I'm running the stock suspension rather than upgraded, and I'm impressed with the improvement.
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