Rotor dust shield replacement

Discussion in 'Prius c Main Forum' started by FireFire, Aug 14, 2025 at 7:19 PM.

  1. FireFire

    FireFire Member

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    Hi all,
    My 2013 Prius C finally gave up the rotor dust shield this week. One side is still holding the place, while the other side has completely fallen out. The part is inexpensive, but I couldn't find any good videos or posts showing how to replace it. There is no screw to hold it in place. Have any of you done that? Or should I leave it without the shield? I thought that was a bad idea since I live up north (Canada).
     
  2. ChapmanF

    ChapmanF Senior Member

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    A front or a rear?

    The dust shield is generally trapped in place behind the hub bearing unit. HBUs can be extra stubborn to remove if you're in a wintry salt-using area. You'll read about various ways of brute-forcing the HBU out, but many will leave it in no condition to reuse. So replacing the backing plate is a job that generally expands to replacing the HBU also. Or, if the bearing isn't noisy yet, an option might be to just wait until you want to replace that, and then do both.
     
  3. FireFire

    FireFire Member

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    I guess that’s the best things I can do. Any consequence to leave it without shield? Safety?
     
  4. Mendel Leisk

    Mendel Leisk MMX GEN III

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    You don’t mention rust, but presumably that’s what’s at play, with the shield coming apart?

    I’d wait till the bearings need replacement, and they’ll be a bear.

    Too bad brake shields can’t be 2 piece, not be sandwiched behind bearing. Does any manufacturer do that? Not practical?

    Google AI says nope. Search string:

    do any automobiles have an easily replaceable brake shield
     
    #4 Mendel Leisk, Aug 15, 2025 at 9:45 AM
    Last edited: Aug 15, 2025 at 9:50 AM
  5. ChapmanF

    ChapmanF Senior Member

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    I'm not absolutely positive what holds a c's brake shields on in the front. The c uses the same "generation 1 hub bearing units" (pressed in, flangeless) that the gen 1 Prius did (confusingly: Prius generations and hub bearing unit generations are independent concepts, and it just happened that gen 1 HBUs were used in the front on the gen 1 Prius).

    I had a gen 1, but I can't quite picture now exactly what was holding the front shields on there either.
     
    Mendel Leisk likes this.