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Coilover Help: What are these?

poli84 Sep 24, 2013

  1. poli84

    poli84 Member

    I've had very squeaky rear Bilstein PSS10 coilovers for a while and just now, I pulled the rear wheels off and had a look.

    Upon removing the blue guillotine sleeve (pulling it down), I noticed these broken yellow foam sleeves.
    The RHS has both broken, the LHS has just one broken.

    Can anyone tell me if these come with the Bilstein PSS10 coilover kit or have they been added on by my installer (I purchased second hand)?





    I put these sleeves back on and taped them together again.
    After apply silicone spray to all my bushings and spring joins, etc, i took the car for a drive and my noise has pretty much gone away, comes back on the odd occasion.

    I'm wondering if these broken sleeves are the cause of my noise?

    I guess time will tell as the silicone will eventually wear off so i will see if the noise comes back.
  2. AdriansS3

    AdriansS3 Member

    I think they would have come with the kit as the standard shocks have some but are a different size.
  3. A19quattro

    A19quattro Active Member

    Look like bump stops to me, don't know much about the coilover kit you're talking about though but they look the same as the ones on standard suspension ones which degrade over time, causing the cover to drop down, then water/dirt gets into the shox and knackers them, happy days!
  4. smurfworth

    smurfworth Well-Known Member Audi S3

    That's the bumpstops, but to be honest, considering the height you have your coilovers set at you won't exactly need them.
  5. poli84

    poli84 Member

    Thanks guys, makes complete sense these are bump stops.
    Also makes sense that they would be broken given the car used to sit lower and on some spirited drives, I've hit full bump at speed which would cause them to break.

    Given they are bump stops, they certainly would not be the cause of my squeaking rear suspension which means it must have been the silicone application to everything which has stopped the squeaking.

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