My 2011 V8 Vantage (sportpack) has 20" front and 21" rear wheels from this forum items for sale off a DB9. There was an initial scraping noise as the wheels did not exactly clear the brake caliper and would scrape on occasion. This was solved by a very narrow (about 1/8th inch) wheel spacer. I try to keep the car pristine with updated services. The brakes are Porterfield with about 1000 miles, and at a recent service by Aston Martin they came through fine during inspection.

The sound corresponds with lower speed braking and seems to be coming from drivers side rear (plenty of clearance on tires and wheels).

I think it might be the parking brake not set right maybe? Maybe a bearing? Am taking it in tomorrow to a service center by my office (I no longer trust Morries Aston Martin Minneapolis since they did my last service) to see hopefully where the noise is coming from as it's not consistent.

I have Quicksilver Exhaust - no valves, and otherwise back there no mods in the rear of the car other than DivinaTech tail lights. The noise started around the last service at Morries. They did install the Velocity AP transaxle return feed lines. Not sure they would have touched suspension stuff for the line installation, or did not tighten something.

Anybody experience similar noise.... again only braking as speeds get lower.

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Yes, it was my E brake pad sticking

 

this is such a timely post.. just changed my rear rotors and pads and have a slight scraping at low speed also...I thought it might be the parking brake as it was a pain to remove the calipers and back off the piston... I'll check this out this weekend...

thanks!

 

Fresh brakes on the rear including hand brake pads or new rotors, do yourself a favor and grab a handful of hand brake at slow speeds with traffic allowing to help bed in the new pads and or rotors. If you didn't replace the parking brake pads you probably should have as the inner pads wear quicker than the outer.

 

how do the parking brake pads truly 'wear out?' especially inner vs outer? I inspected them and they had no real wear at all... I will put my caliper on the pads to measure.

 

Here's what I don't understand - With a sportshift I never use the parking brake but bought the car with 20K miles on it and don't know the history. Not sure how the pads could wear out with 28K miles unless something was not adjusted correctly - again should have been part of those pricy 'annuals' I've been paying for.

 

hope to inspect again this weekend and will keep thread updated...

I also have ASM and rarely use the parking brake

 

The pad/piston is not like your other brake calipers, they will stick. It stuck on my Dodge viper and does so with other cars with a separate E-brake only setup. You can take if off, just the pistol, adjust the cable. Etc... but it will evenutally do the same thing and slightly graze the rotors.
Not the best picture, but it has the same type of brake calipers set up. Also if I'm not mistaken. The brembo calipers are pretty much identical and have been told the pads are interchangeable

 

So how do you prevent the pad/piston to stick? Any preventative maintenance? I think I can see a slight sign on my rear rotors, and had no idea where that was coming from...

 

so far... no more low speed scraping noise...took out the parking brake pads and put some anti squeal on the back of the pads...backed off the pistons 1/2 turn and reinstalled...

did a quick test drive... will do a longer one tomorrow...
hopefully it's fixed.