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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Fitting M-Sport wheel



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      12-28-2012, 08:22 AM   #1
xPETEZx
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Fitting M-Sport wheel

Hoping to get some advice / re assurance:

I have purchased an M-Sport wheel to replace my SE one.
It is due to arrive in the next couple of days, and I just wanted to find out what peoples thoughts are on DIY fitting this?

I found this brilliant guide on the forum: M-Sport fit

To me, it looks simple enough. In my case it should be even easier, as the new wheel has the media buttons etc already fitted and its own airbag.

I have spoken to friends/colleagues and as soon as mention the airbag everyone gets in a fit of worry and says I shouldent touch it and let the dealer do it.

Should I leave this to the dealer? If so, how much are they likely to want to charge me?

Anybody done this upgrade themselves?
Did you have any issues?
My worry is that either:
1.) The airbag goes of for some reason? (Could this happen?)
2.) When I fit the new air bag the car throws an error.

I have read varrying reports of how long you need to wait after disconnecting the battery.
Some say just test the inside light and if this does not power on, your good to go.
Others say wait 20 minutes.

Presumably if this was done with power still going to the airbag it could trigger?

Thanks for reading!
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      12-28-2012, 08:47 AM   #2
A_P
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You the need the MF buttons. If you have these then u are set.

1. disconect battery terminals in boot.
2. using a small flathead insert screwdriver in the sides of the wheels and release retaining clips. Steering wheel pops out.
3. disconnect airbag from steering wheel cables.
4. discconect slip ring for airbag and MF buttons.
5. loosen and remove large centre bolt.
6. remove wheel. take careful note of there the wheel lines up it should be marked on both wheels.
7. slid on new wheel into correct location. make sure new wheel is built up with trim and MF buttons ready and also has the the Airbag earth wire in place.
8. Connect airbag loom and MF loom into slip ring.
9. Refit the wheel in place using the original large bolt and torque appropriately.
10. Connect airbag to airbag loom.
11. place airbag carefully in position then press fit one side at a time so that the retaining clips hold it in place.
12. check you followed all steps and everything checks out, check once again that the wheel is tighten by pulling the wheel towards you.
13. reconnect battery terminals.
14. start ignition and check all buttons and horns work as should.
15. grasp wheel reassuringly and smile.
16. go in doors eat steak and have fun time with wife/gf/mistress.
17. sleep.
18. log on to E90post and report back on experience. ( of wheel fitting not fun time)
19. end.
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      12-28-2012, 10:32 AM   #3
davyk31
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I have done this using the guide on here and definently do not pay a dealer to do the job as its simple. I was a bit concerned too before doing the job but so long as the power is cut at the battery your airbag cannot go off.

Getting the slits for airbag release can be a bit tricky but have a good feel around and you find them easy enough

Go for it, a great upgrade for an SE.
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      12-28-2012, 11:40 AM   #4
xPETEZx
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Sounds great

So how long should I wait between disconnecting the battery and removing the airbag?
Any truth to needing to wait 20 minutes?
Is just checking the interior light no longer works enough?

I do not have a toruqe wrench, presumably its fine to just tighten the nut till it will go no further and the wheel feels secure?

Thanks for the pointers! Cant wait for it to arrive.
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      12-28-2012, 12:22 PM   #5
acerboo
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ive done several of these without disconnecting the battery but if I were you I would and leave it 30 mins while you have a cup of tea just to be sure.
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      12-28-2012, 01:44 PM   #6
davyk31
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If the interior light goes out you are fine but give it 10 mins just to be sure.

I didn't use a torque wrench either , just tighten it up nice and tight and its perfect.
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      12-28-2012, 03:20 PM   #7
xPETEZx
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Hoping to do this in my Lunch hour at work, that a realistic estimate for time?
Have under ground parking at work, so like the idea of doing it there in this horrible weather. (esp. as I will need to leave the boot open!)
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      12-28-2012, 03:35 PM   #8
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if you doing it in a poorly lit area take a torch it will come in handy
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      12-28-2012, 03:36 PM   #9
davyk31
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Yes if you are just swapping wheels you should get it done ok in that time, before that try to locate the slits for releasing the airbag. Once you master that its just a case of undoing the big nut and the wheel is off.
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      12-28-2012, 05:18 PM   #10
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Awesome!
Thanks for all the pointers. This is setting me at rest for when it arrives next week

I have already located the slits, and checked my tool kit has all the bits I need.

Will post back when its all in
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      12-29-2012, 07:27 AM   #11
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Yea just remember like someone mentioned. Leave the boot open or leave a blanket hanging out of the boot so that the door doesnt close accidently ( is what I did). I have never heard of this 20 mins malarky.

It is mainly because after you discconect the battery you are waiting for whatever juice is left to discharge itself. I simply turned the xenons on which obviously didnt work but discharged anything juice left. Then turned them back off and started work straight away.

P.s I have heard that if you do not disconnected the battery you will throw up an error code for the airbag. Which you will have to get cleared. I have always disconnected the battery.
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      12-29-2012, 08:05 AM   #12
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Quote:
Originally Posted by A_P View Post
You the need the MF buttons. If you have these then u are set.

1. disconect battery terminals in boot.
2. using a small flathead insert screwdriver in the sides of the wheels and release retaining clips. Steering wheel pops out.
3. disconnect airbag from steering wheel cables.
4. discconect slip ring for airbag and MF buttons.
5. loosen and remove large centre bolt.
6. remove wheel. take careful note of there the wheel lines up it should be marked on both wheels.
7. slid on new wheel into correct location. make sure new wheel is built up with trim and MF buttons ready and also has the the Airbag earth wire in place.
8. Connect airbag loom and MF loom into slip ring.
9. Refit the wheel in place using the original large bolt and torque appropriately.
10. Connect airbag to airbag loom.
11. place airbag carefully in position then press fit one side at a time so that the retaining clips hold it in place.
12. check you followed all steps and everything checks out, check once again that the wheel is tighten by pulling the wheel towards you.
13. reconnect battery terminals.
14. start ignition and check all buttons and horns work as should.
15. grasp wheel reassuringly and smile.
16. go in doors eat steak and have fun time with wife/gf/mistress.
17. sleep.
18. log on to E90post and report back on experience. ( of wheel fitting not fun time)
19. end.

I'd always disconnect the battery.
5 minutes, 10 minutes, 20 minutes? who can say. All good practice.
I disconnect and do something else, so maybe 5 minutes.

On later wheels, the holes for diconnecting the airbag clips are covered over with the trim material, so you have to feel for a depression, then put the screwdriver through the material.

Feel free to report back on the fun time too!!!

Mike
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      12-29-2012, 08:48 AM   #13
A_P
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Quote:
Originally Posted by AlwynMike View Post
I'd always disconnect the battery.
5 minutes, 10 minutes, 20 minutes? who can say. All good practice.
I disconnect and do something else, so maybe 5 minutes.

On later wheels, the holes for diconnecting the airbag clips are covered over with the trim material, so you have to feel for a depression, then put the screwdriver through the material.

Feel free to report back on the fun time too!!!

Mike
OK....

But why are you quoting me for?
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      12-29-2012, 10:32 AM   #14
Jedimindtrix
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I disconnected the battery when I installed my wheel, it's a 5 minute job that could save you hours of grief if the OBC throws up an error code afterwards.
__________________
Currently driving an Alpina-D3 MT, Sapphire black, Classic Alloys wrapped in PS2's, Full Alpina interior trim, Black Grilles, Blackline tail lights and zymol'ed once a month.
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      12-29-2012, 02:29 PM   #15
AlwynMike
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Quote:
Originally Posted by A_P View Post
OK....

But why are you quoting me for?
Your idea of the "fun time" as part of the procedure.

I'd never have thought about that - must be getting old!!

Apologies if I offended

Mike
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      12-29-2012, 02:48 PM   #16
A_P
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Quote:
Originally Posted by AlwynMike View Post
Your idea of the "fun time" as part of the procedure.

I'd never have thought about that - must be getting old!!

Apologies if I offended

Mike
No mate not offended, just was wondering why you quoted me, as in did you want me to respond or something?



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      01-08-2013, 02:49 PM   #17
xPETEZx
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Fitted!

Right, the wheel FINALLY arrived today. Ordered it over 3 weeks ago.

As expected, it has a few scuffs. Mainly on the plastic trim. May look at replacing down the line.

I planned to install this in my lunch break, and got all the way to removing the large securing bolt, when I realised my newly purchased tool kit did not have a 16mm socket! Stupid me!

Put the Airbag etc all back to in and drove to Hellfrauds after work.
There was no 16mm socket for a 1/4 set, so I ened up having to buy another little kit.

Installed the new wheel there and then in the car park.

Thanks to the guide and the posts in this topic I was confident and knew what needed doing.
All in all, took me about 10 minutes to complete.

Very statisfed with the improved feel on my short drive home!

I am sure you all know what an M-Sport wheel looks like fitted, but heres a quick snap: (excuse quality, phone pic )
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