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  1. #1
    Established Member Two Rings mrismail's Avatar
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    You guessed it, another problem...UPDATE

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    Hey guys,
    Many of you might know I was diagnosing a knock I had about 3 months ago. Ended up replacing almost everything, including both front axles (from Raxles). Ever since, I've had a ridiculous vibration in the seat and steering wheel. It happens at any speed but intensifies at higher speeds. Wheels balanced a gazillion times at many different shops. Not better or worse with braking. Decided to jack up the car today and take a look at the axles while the car is in drive and wheels are spinning. Is it normal to have a wobble like in the videos?

    Passenger Side: (Please ignore the loose bushing on the sway bar link. I'm waiting for a replacement part )


    Driver Side:


    Driver Side 2:



    Any help would be appreciated.


    UPDATE:

    I went about installing a new OEM driver side wheel bearing and hub assembly. I also changed the brake rotor (just in case it's the rotor). It appears the wobble is slightly improved but it's definitely still there. I think it's the axles.

    Last edited by mrismail; 07-14-2018 at 06:25 PM.
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  2. #2
    Veteran Member Four Rings SinCityA6's Avatar
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    Is your YouTube channel private? I canít see your video.


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  3. #3
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  4. #4
    Established Member Two Rings mrismail's Avatar
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    Sorry. Didn't realize the videos defaulted to private. I've made them public and you should be able to see them.
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  5. #5
    Established Member Two Rings jamesb's Avatar
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    How about your wheel bearings?
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  6. #6
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by jamesb View Post
    How about your wheel bearings?
    Those were not replaced. No weird sounds coming from them and no play in the wheel.
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  7. #7
    Senior Member Two Rings
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    wtf?!? 3rd video of the brake rotor... How the heck is it that the rotor seems to be wobbling but the spacer is static in relation to the rotor? Mind you that I've never messed with wheel spacers so this is just something I noticed on your video there that doesn't make sense to me. AFAIK, the spacer should be bolted to (in some designs)/ resting against the rotor but pretty much move as a single unit with the rotor.

    Just out of curiosity... If I'm right and this is in fact improper behavior, have you attempted to drive without the spacers on to see if it makes any difference?
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  8. #8
    Senior Member Two Rings
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    Also, did you replace these axles yourself or did you have a shop do it? Your entire rotor is moving around and that only happens when a bearing is toast and allowing for play. Was the bearing removed in the process or did it stay in the spindle the whole time? Something is definitely not right at the hubs. If it's not the bearings are toast, something isn't aligned/ seated properly and causing this mess.
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  9. #9
    Senior Member Two Rings
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    The axles themselves don't appear to be at fault here. At least based on the videos I'm looking at their position in relation to everything around them as they're spinning and they are not moving as say a bent axle would. And again, at least by what I can see at the videos... the problem here is at the spindle/ wheel bearing/ rotor area.

    And sorry for the multiple posts. I'm having my Sunday IPA on an empty stomach and I'm remembering things to say after I hit Post, lol...
    07 A6 3.2- Out & In- Morimoto 5500k & Nokya 2500k, DeAutoLED Reverse, LP, & Footwells, Ziza Full Interior, 10" lo-pro Pioneer, Audi Aluminum Pedals
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  10. #10
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by 95blkmax View Post
    The axles themselves don't appear to be at fault here. At least based on the videos I'm looking at their position in relation to everything around them as they're spinning and they are not moving as say a bent axle would. And again, at least by what I can see at the videos... the problem here is at the spindle/ wheel bearing/ rotor area.

    And sorry for the multiple posts. I'm having my Sunday IPA on an empty stomach and I'm remembering things to say after I hit Post, lol...

    I do not have spacers (beer goggles? haha). Initially I thought that the rotors from ECS Tuning were out of alignment or warped so I asked for replacements. The issue persisted when I swapped them out yesterday. I replaced the axles myself. The bearings were never removed. Spindle stayed intact. I also tried spinning the wheel without the rotor's. Just axle and wheel bearing, couldn't really tell if there was any wobble. Something is wrong, and I don't know what it is.
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  11. #11
    Established Member Two Rings mrismail's Avatar
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    Anyone? The problem is on both sides. What's the likelihood of both wheel bearings going out with just the axles being replaced?

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  12. #12
    Established Member Two Rings jamesb's Avatar
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    Quote Originally Posted by mrismail View Post
    Anyone? The problem is on both sides. What's the likelihood of both wheel bearings going out with just the axles being replaced?

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    Well, each wheel bearing likely has the same mileage and wear on them.
    They could also have been damaged when you replaced the axles- Iím not sure if the axles come out easily or require persuasion.
    If I can't fix it I can fix it so nobody can fix it.

  13. #13
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by jamesb View Post
    Well, each wheel bearing likely has the same mileage and wear on them.
    They could also have been damaged when you replaced the axles- Iím not sure if the axles come out easily or require persuasion.
    They do have the same mileage. And axles came out with the force of my finger pushing them through.

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  14. #14
    Active Member One Ring
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    Quote Originally Posted by mrismail View Post
    They do have the same mileage. And axles came out with the force of my finger pushing them through.

    Sent from my GalaxyS9+ using Audizine mobile app
    My vote is on the bearings. Did you properly torque the axle nut? In my younger years I didnít appreciate torque specs. I over torqued an axle bolt, and as a result damaged my wheel bearings. Also when putting all the ball joints back together did you damage any during separation? That would be my second guess. However my gut tells me you may have inadvertently bent/damaged the bearings during axle install.

  15. #15
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by Terak0306 View Post
    My vote is on the bearings. Did you properly torque the axle nut? In my younger years I didnít appreciate torque specs. I over torqued an axle bolt, and as a result damaged my wheel bearings. Also when putting all the ball joints back together did you damage any during separation? That would be my second guess. However my gut tells me you may have inadvertently bent/damaged the bearings during axle install.
    Axle bolts were torqued to spec. I'm pretty sure no damage happened with ball joints. I had nothing stuck. Everything came loose with the force of my hands/fingers. Never hammered, pried, heated...etc. Axle install went as smooth as butter. The axle went through the spindle without force. Bolts were hand screwed and then torqued. I really don't want to spend 250 on new wheel bearings. Would it be worth it to purchase a cheaper one for like 50 bucks to install and see if it fixes the wobble?
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  16. #16
    Established Member Two Rings mrismail's Avatar
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    Also, should I replace the hub as well or just the bearing?

    Hub Part #: 4D0407613E
    Bearing Part #: 4F0498625B
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  17. #17
    Active Member One Ring
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    Quote Originally Posted by mrismail View Post
    Axle bolts were torqued to spec. I'm pretty sure no damage happened with ball joints. I had nothing stuck. Everything came loose with the force of my hands/fingers. Never hammered, pried, heated...etc. Axle install went as smooth as butter. The axle went through the spindle without force. Bolts were hand screwed and then torqued. I really don't want to spend 250 on new wheel bearings. Would it be worth it to purchase a cheaper one for like 50 bucks to install and see if it fixes the wobble?
    Come to think about it, have you taken it for an alignment after messing with all those ball joints? Could be a cheaper option than new bearings. However Iím still leaning towards the bearings. Given the mileage it probably wouldnít be a bad idea.

  18. #18
    Senior Member Two Rings
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    Quote Originally Posted by mrismail View Post
    I do not have spacers (beer goggles? haha)...
    .... I need to get out of the IPA Diagnosing business

    Quote Originally Posted by mrismail View Post
    Also, should I replace the hub as well or just the bearing?

    Hub Part #: 4D0407613E
    Bearing Part #: 4F0498625B
    Bearings are the normal wear and tear items. The hubs usually do not need to be replaced unless the bearing has been bad for a while and it has began to wobble INSIDE the hub basically "ovalizing" its seating surface on the hub.
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  19. #19
    Senior Member Two Rings Nizmo's Avatar
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    Verify by part number the axles compatible with you car. Many times they are too short or too long. Physically pull the numbers form the axles.

    All suspension items need be torqued and tightened in "loaded" position (on the ground at ride height).

    While the car is in the air, suspension unloaded, it would be difficult to find knocks. My opinion, GoPro while driving.

  20. #20
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by Terak0306 View Post
    Come to think about it, have you taken it for an alignment after messing with all those ball joints? Could be a cheaper option than new bearings. However Iím still leaning towards the bearings. Given the mileage it probably wouldnít be a bad idea.
    Old wheels aligned. Problem persisted. I spent money on a decent set of wheels since I needed new tires. Problem persisted. Went to another tire shop and got wheels balanced but problem was the same.

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  21. #21
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by 95blkmax View Post
    .... I need to get out of the IPA Diagnosing business



    Bearings are the normal wear and tear items. The hubs usually do not need to be replaced unless the bearing has been bad for a while and it has began to wobble INSIDE the hub basically "ovalizing" its seating surface on the hub.
    I ended up purchasing both cause the last thing I want to do is struggle separating them. That would just ruin my day and complicate things. An extra 200 bucks would prolly be worth the hassle.

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  22. #22
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by Nizmo View Post
    Verify by part number the axles compatible with you car. Many times they are too short or too long. Physically pull the numbers form the axles.

    All suspension items need be torqued and tightened in "loaded" position (on the ground at ride height).

    While the car is in the air, suspension unloaded, it would be difficult to find knocks. My opinion, GoPro while driving.
    Axles were verified with part numbers and measurements compared to old ones prior to install.

    All suspension items were torqued in loaded position. I installed them all.

    I dont have or own the means to video while driving. A GoPro would cost the same as a bearing. Might as well just eliminate by process of install.

    Just hoping it fixes it.

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  23. #23
    Senior Member Two Rings Nizmo's Avatar
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    Quote Originally Posted by mrismail View Post
    Axles were verified with part numbers and measurements compared to old ones prior to install.

    All suspension items were torqued in loaded position. I installed them all.

    I dont have or own the means to video while driving. A GoPro would cost the same as a bearing. Might as well just eliminate by process of install.

    Just hoping it fixes it.

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    Ya lets hope! If you were close r id come help or take a looksy.

  24. #24
    Established Member Two Rings mrismail's Avatar
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    Quote Originally Posted by Nizmo View Post
    Ya lets hope! If you were close r id come help or take a looksy.
    Thanks!

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  25. #25
    Established Member Two Rings mrismail's Avatar
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    Update in original post.
    2011 A6 S-Line Premium Plus
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  26. #26
    Veteran Member Four Rings JPJ2007's Avatar
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    Interesting, I wonder if the axles while straight just aren'tbalanced, thus if any part of it is heavier it would cause the issue your describing. Not much help, but hope you get it figured out.
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