09-12-2021, 06:50 AM | #1 |
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Hi all,
I went to the dealership yesterday to have them look at a few parts I want installed including an exhaust valve controller and spacers. They initially said they could install both no problem in an hour (1 hour labor) which I thought was very reasonable. They are going to call me on Monday and fit me in so I can wait for it while they do the work. I said cool and I was back in my car and ready to leave. As I'm getting ready to pull out of the service bay area, my SA and another gentlemen who turns out to be the service manager stops me and wants to chat for a min about the spacers. He said he would strongly advise against spacers because they can cause warped rotors. His logic was that with spacers the wheels are no longer sitting flush on the hubs and are more reliant on the lugs and nuts to stay attached to the vehicle. In other words, when you put spacers on, you are putting more pressure on the lugs because the wheels are sitting beyond the hub. Is this true? I've never heard this and the spacers I have actually have a little extension so that the hub area where the wheels sit is actually extended as well. So my initial thought is that what he is saying is not true. But experience would be the real test as to whether what he was saying was true. Has anyone run into issues with warped rotors while running spacers? Thanks, Shaun
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09-12-2021, 07:21 AM | #2 |
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As long as it's hub centric and made out of good single block of metal you will be fine. Also as long as it's not super crazy in size it shouldn't cause any problems.
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09-12-2021, 07:57 AM | #3 |
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I think you'll be fine with good quality spacers that come with longer lug bolts. Spacers are very common and I haven't personally experienced any issues with them on various cars
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09-12-2021, 09:40 PM | #4 | |
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09-13-2021, 06:58 AM | #5 |
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As one of the other posters mentioned, as long as the spacer is hub-centric and extended wheel bolts are used, they should be no problem.
BTW, Porsche used to offer spacers as a factory option on the 911
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09-13-2021, 11:50 AM | #6 |
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100000% agree with all the replies here.... the dealership employee doesnt understand how the part works with the hub.
Im running spacers on 4 of my 5 cars right now... zero issues as long as the material is right, the install is right, and the bolt length is correct. These dealer guys crack me up-- but alot of them know their shit too so I wont be a negative person here cause of one idiot's comment.
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09-13-2021, 11:56 AM | #7 |
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A quality spacer won't cause any issues with the rotors, the only thing spacers will cause to wear more would be wheel bearings.
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09-13-2021, 03:14 PM | #8 | |
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09-13-2021, 03:20 PM | #9 |
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I went to my SA years ago about warped rotors and they said it was due to my spacers. Voided my warranty on the brakes and I couldn’t do a thing. Couldn’t go to another dealer because it was red flagged by the dealer so every dealer ever will see it when they pull it up the info on DCS. Just know it is possible. And before someone says I just had a bad experience, wrong. I had an experience that can happen to anybody. They service center apologized profusely but I had to pay out of pocket for all further brake costs.
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09-13-2021, 06:02 PM | #10 |
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Spacers take 15 minutes to install/remove... just take them off for dealer visits. This is dumb though and I would find a new dealer. What about aftermarket wheels with a different offset, would that warp rotors? Probably not.
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09-13-2021, 07:53 PM | #11 |
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Somebody better tell these guys too. Snippet from M Motorsport's GT4 catalog.
https://www.bmw-motorsport.com/conte...8005566778.pdf
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09-14-2021, 01:34 PM | #12 |
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@M3-san Your experience is merely a reflection of the service manager not wanting to inherit any liability related to installing aftermarket parts. It's stupid because dealerships often don't torque lugs to proper spec, which is a more immediate risk to rotor failure.
Now is the explanation you were given possible? Maybe, though remote. As was already posted by another member, there's some risk of premature failure of wheel bearings, which is a risk with spacers and wheels with different offsets. And if you continue to drive long enough with failed wheel bearings, this could translate to rotor wobble and eventual failure. |
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09-14-2021, 01:46 PM | #13 | |
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GT4 cars also aren't driven and maintained in the same manner as their roadgoing cousins. |
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09-14-2021, 04:18 PM | #14 |
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It's an extreme example. Spacers simply aren't warping rotors.
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09-14-2021, 05:56 PM | #15 |
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09-14-2021, 05:58 PM | #16 |
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With trucks running 1-2" spacers, maybe. In the minimal sizes we're running, not an issue.
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09-15-2021, 10:03 AM | #17 |
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Thank you for sharing. My leaning is that the risk is minimal; I just haven't found consistent messaging on the topic. The detractors (of using spacers) seem to often be mechanics working off of dated and/or extreme anecdotes, while vendors are universally advocates. It is what it is.
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09-15-2021, 04:40 PM | #18 |
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I've decided to go ahead and install the spacers myself. I'm going to invest in a good floor jack and all accessories needed to get the job done (and done right).
Some really sound advise in here so I appreciate it. I've done some research on my own as well and as someone else mentioned, improperly torqued lug bolts are a more likely cause of warped rotors. So I'm going to ensure I invest in a good torque wrench and also make sure I tighten the bolts in the proper/recommended order to minimize risk.
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09-15-2021, 05:11 PM | #19 | |
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09-15-2021, 05:48 PM | #20 |
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105ft lb.
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09-15-2021, 10:24 PM | #21 |
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09-19-2021, 03:18 PM | #22 |
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My local dealer said they'd install spacers on my new car when it gets here.
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