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Facelift Exhaust rattle after fitting downpipe

billymc92 Feb 23, 2018

  1. billymc92

    billymc92 2018 Ara Blue Facelift RS3

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    Wonder if anyone could help me. Since fitting my Milltek downpipe it seems I get a rattle when I accelerate. And stops when I let off the accelerator. At first I thought it was something loose. Heatsheild or bolt ect but had it on ramp and can’t see anything. And it actually sounds like it’s coming from inside the exhaust. (Best way to describe it is lots of wee stones belting through it)

    Here’s the interesting part. I don’t have the cold start rattle anymore. It actually sounds the exact same noise but like I say, it’s not on cold start, it’s when I accelerate.

    I’ve got a few videos here,




    Any help would be greatly Appreciated. It still does it in sport unlike the cold start rattle noise would stop.
     
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  3. Dodgygtr

    Dodgygtr Registered User

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    Is it not time to replace with full miltek exhaust?
     
  4. billymc92

    billymc92 2018 Ara Blue Facelift RS3

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    well that was my plan before. but now its so loud and I don't really want it any louder lol. plus they have still not released the back box yet. if I cant get a solution I guess that will be the only way to go
     
  5. terminator x

    terminator x Registered User

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    Wow sounds awful. What have Audi done to you FL owners :-/

    TX.

    Sent from my BBB100-2 using Tapatalk
     
  6. billymc92

    billymc92 2018 Ara Blue Facelift RS3

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    ohh wait a minute, they have updated there website saying they will be ready for March
     
    Dodgygtr likes this.
  7. Dodgygtr

    Dodgygtr Registered User

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    Could always give them a ring to see how much louder it is? Think I’m going full exhaust just not sure which make yet but I think they are the only ones so far, for the saloon anyway.
     
  8. Leo-RS

    Leo-RS Registered User

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    Cold start is to warm the cat up for emissions purposes. As you don’t have a cat in there anymore, MRC map it out. They actually map it out even if you do still have the cat in place.

    No idea about the rattle though. Is it coming from the front or the rear of the car?
     
  9. billymc92

    billymc92 2018 Ara Blue Facelift RS3

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    Someone said it could be the rear silencers breaking up/disintegrating due to the heat as there is now no cats. Little particles could be vibrating about inside the silencers now? Could this be a chance?
     
  10. AudiNutta

    AudiNutta Moderator Staff Member Moderator Gold Supporter

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    Oh that’s bad!!

    Sounds exactly like the cold start rattle, only just permanent.
    I doubt Audi will pay out with the decat :/
     
    billymc92 likes this.
  11. billymc92

    billymc92 2018 Ara Blue Facelift RS3

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    Exactly lol. People on the other form are saying it’s pinking and happens at around 2k revs. No idea what that is but it’s definitely not normal and needs sorted. Sounds hideous
     
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  13. Beebee-one

    Beebee-one Registered User

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    If you check out some of the Youtube guys who have fitted down pipe's to their FL car ('Mod-It' being one for example), some of them have removed it after a week or so of running it. Can't remember exactly why but maybe due to a similar reason? Also, I remember reading something about the quality of Milltek dp's in one of Aoon's PFL car threads recently (the general fitment and possibly brackets fouling bodywork making a noise). May be worth a look?
     
  14. Spinstorm

    Spinstorm Well-Known Member It's my birthday

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    The problem @billymc92 is you have screwed your warranty now.

    I get that you want to make your car better but it’s already very fast and loud and so personally I don’t get the appeal of risking these changes; as now you have to burden the cost of fixing this issue and you don’t know what the problem is and I don’t need to tell you that could be very expensive.
     
  15. billymc92

    billymc92 2018 Ara Blue Facelift RS3

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    But now I have a fun car
     
    NevMan, AudiNutta and JamesCrs3 like this.
  16. Kristijan Sabljar

    Kristijan Sabljar Registered User

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    Yes they have released it, i got prices and maybe order for my friends car with stock exhaust :D
     
  17. Behind The Bins

    Behind The Bins Registered User

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    As long as youre happy
     
    AudiNutta likes this.

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