DB9 Brake Squeal
Discussion
Hi all... My DB9 is 110,000 miles and has really annoying brake squeal when slowing from about 15mph to zero.
They were all replaced at 80000 miles inc discs due to this as the previous owner told Exeter Aston and they wrote about it in the service history.
Any top tips to minimise brake squeal?
Steve
They were all replaced at 80000 miles inc discs due to this as the previous owner told Exeter Aston and they wrote about it in the service history.
Any top tips to minimise brake squeal?
Steve
Make sure any pads fitting have their backing plate or light smudge of some high temp brake specific grease on the rear
then bed in new pads properly, and from time to time re do this if they glaze over
http://www.pagidracing.com/en/information/technica...
then bed in new pads properly, and from time to time re do this if they glaze over
http://www.pagidracing.com/en/information/technica...
The squeal is due to pad design:
https://www.youtube.com/watch?v=XNeYWcwOoD0
BG Stop Squeal may help (I've never used it), or you can try using the brakes in reverse at decent speed and brake pressure to get buildup off the leading edge, or you can replace the pads for some that are better for normal driving (I'm a big fan of the Porterfield R4-S).
https://www.youtube.com/watch?v=XNeYWcwOoD0
BG Stop Squeal may help (I've never used it), or you can try using the brakes in reverse at decent speed and brake pressure to get buildup off the leading edge, or you can replace the pads for some that are better for normal driving (I'm a big fan of the Porterfield R4-S).
Had the same problem with my db9.
Went to the Porterfield pads. When installing, reuse your original anti rattle shims along with the shims attached to the new Porterfield pads. Remove the shims from the Porterfield pads and apply anti-squeal compound to both sides of both the Porterfield shims as well as the oem shim. Reassemble and your squeaky brakes are gone forever..
Went to the Porterfield pads. When installing, reuse your original anti rattle shims along with the shims attached to the new Porterfield pads. Remove the shims from the Porterfield pads and apply anti-squeal compound to both sides of both the Porterfield shims as well as the oem shim. Reassemble and your squeaky brakes are gone forever..
My V12V is with Works at the moment for squeaky brakes (among other things).
Despite stripping and cleaning the whole assembly including removing the discs, applying TuneUp and then carrying out the bedding in procedure again, they have been unable to fix it. They're now replacing the pads under warranty....can't argue with that..!
Despite stripping and cleaning the whole assembly including removing the discs, applying TuneUp and then carrying out the bedding in procedure again, they have been unable to fix it. They're now replacing the pads under warranty....can't argue with that..!
telum01 said:
The squeal is due to pad design:
https://www.youtube.com/watch?v=XNeYWcwOoD0
BG Stop Squeal may help (I've never used it), or you can try using the brakes in reverse at decent speed and brake pressure to get buildup off the leading edge, or you can replace the pads for some that are better for normal driving (I'm a big fan of the Porterfield R4-S).
I've seen some EBC red brake pads with chamfered edges. £130 on ebay. Same principle as the Porterfield oneshttps://www.youtube.com/watch?v=XNeYWcwOoD0
BG Stop Squeal may help (I've never used it), or you can try using the brakes in reverse at decent speed and brake pressure to get buildup off the leading edge, or you can replace the pads for some that are better for normal driving (I'm a big fan of the Porterfield R4-S).
Big Ry said:
My V12V is with Works at the moment for squeaky brakes (among other things).
Despite stripping and cleaning the whole assembly including removing the discs, applying TuneUp and then carrying out the bedding in procedure again, they have been unable to fix it. They're now replacing the pads under warranty....can't argue with that..!
I know someone who this became a deal-breaker for. He had such frustration through it... Likely all about a chamfered edge (or rather std pads not having a chamfered edge)...? Likely dealers aren't allowed to give them a bit of a file down Despite stripping and cleaning the whole assembly including removing the discs, applying TuneUp and then carrying out the bedding in procedure again, they have been unable to fix it. They're now replacing the pads under warranty....can't argue with that..!
Hopefully mine will be sorted otherwise as you say, it would become an issue. Nothing shatters the image quite like the sound of a bus at the traffic lights 
Anyone know whether the DB11 suffers from the dreaded squeal or not and whether the brake assembly has been carried over from AMG too (to some extent) ?
Anyone know whether the DB11 suffers from the dreaded squeal or not and whether the brake assembly has been carried over from AMG too (to some extent) ?
My Rapide very rarely squeals - I suspect it has bigger brakes 6 pot than the DB9 being on 20" stds?
I haven't bought them yet but the Porterfield R4S pads that have been suggested to me seem to be a listed as a Merc fit online (no actual mention of Rapide)! Is this the AMG brake link - they use same calipers as Aston? Wonder who makes the calipers just to see what other options I have?
I haven't bought them yet but the Porterfield R4S pads that have been suggested to me seem to be a listed as a Merc fit online (no actual mention of Rapide)! Is this the AMG brake link - they use same calipers as Aston? Wonder who makes the calipers just to see what other options I have?
Edited by Ken Figenus on Friday 18th August 18:07
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