I've had that on a few occasions, after having new discs/pads fitted, when the mechanic failed to properly re-insert the pad retainer spring (or whatever it's called). On my D2 that is of course, but I'm assuming D3 calipers are similar.
If the spring clip is inserted incorrectly, such that it's not pressing against the pads, they rattle around until you hit the brakes. It's a surprisingly loud and tinny rattle too. I thought I had a loose exhaust mounting the first time I heard it.
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Mark
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2002 FE S8 Ebony Black Pearl
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Cars Owned:
The Tesla Era: 2020 Model S Performance Ludicrous+ (present)
(Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability)
The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present)
The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo
The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust
Last edited by moltuae; 30th April 2019 at 05:36 PM.
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