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Aftermarket Wheel Fitting

Discussion in 'Canada' started by VancityTM3, Sep 22, 2019.

  1. VancityTM3

    VancityTM3 Member

    Joined:
    Sep 22, 2019
    Messages:
    5
    Location:
    Vancouver
    I’m trying to determine if an old set of wheels that I had for my old vehicle would fit my 2019 TM3 for winter tires. I checked the bolt patterns and offset, and it looks like it would work. However, when I took off the tires for fitting, there is a bolt on the wheel hub that is preventing a flush fit. Anybody else had this issue? Is this bolt necessary?

    I emailed the service center but have not heard back from them yet.
     

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  2. pcons

    pcons M3 AWD+

    Joined:
    Jul 5, 2018
    Messages:
    1,618
    Location:
    Burlington, Ontario, Canada
    I dont recall seeing that on mine, but also wasn't paying attention. My guess is that's a bolt holding the rotor on the wheel, but likely not necessary since when the tire is on the tire will sandwich the rotor in place via the wheel nuts.

    The stock tires have a cutaway that allows that bolt to be there. I guess your rims don't? Another crazy option is to make a recess in your wheels to account for that bolt. Strange they wouldn't have that though as typically they would remove as much material as possible to keep weight of the wheels down. It's really only necessary to make contact with the rotor near where the wheel studs are.
     
  3. Shiraz8484

    Shiraz8484 Member

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    Sep 8, 2019
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    Location:
    Toronto
    I think I saw a video where they say its a bolt the factory uses for something but it can be taken out without issues. Please do try and verify though.
     
  4. RSR.M3

    RSR.M3 Member

    Joined:
    Jul 28, 2019
    Messages:
    95
    Location:
    Toronto
    Yes, it's just there so that the rotors doesn't rotate when they install the caliper. You don't need it. You can take it off with no issues.
     
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  5. VancityTM3

    VancityTM3 Member

    Joined:
    Sep 22, 2019
    Messages:
    5
    Location:
    Vancouver
    Well, i just got an official response from the service center “I have verified with our technicians and this bolt is an integral component to the hub/disc assembly and we don’t recommend its removal.”

    That bolt is going to cost me an extra $1,000!
     
  6. 03DSG

    03DSG Active Member

    Joined:
    Apr 5, 2016
    Messages:
    2,131
    Location:
    Ontario
    They HAVE to say that for liability reasons. However the bolt does absolutely nothing with the wheel installed. It’s only purpose is to hold the disk in place during caliper/pad assembly. It can be reinserted during pad changes however most mechanics simply run a lug nut down one stud to the disc to temporarily secure it during brake service. Your 5 wheel studs and lug nuts clamp the wheel to the rotor to the hub.
     

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