DB9 - loud clonking

[TGearDavid]

Hi All,

Any advice/experience appreciated.

DB9 - 04, 39k. Driving like a dream. Suddenly developed a very loud clonking noise from rear off side when transitioning from hard acceleration to braking and vice versa. Can replicate every time. Drive it sensibly and no noise. Developed about 5 miles ago and now pulled up on the drive awaiting the dealer to come back to me.

Thinking drive shaft, suspension bushes/arm ????

Any ideas or stories from this happening to these cars before ?

Thanks

David

[3200gt]

Have a look at the damper. Any signs of oil leakage on the side its knocking?

[jeyjey]

My money would be on the suspension bushes, but it could be the damper.

Cheers,
Jeff.

[8Tech]

A damper failure is more likely to be a slow failure. I would expect the change in drive to overdrive will change the direction of pull on the suspension armcausing a lateral movement.
I would therefore expect a bush or ball joint failure.

[Genie Chaser]

Suspect the lower suspension arm has fractured around the bush at the hub end. Quite common on early DB9. New arm and geometry set up.

[AstonZagato]

Many moons ago I had this on a a DB7 - turned out to be suspension bushes.

Not had the issue on any of my DB9s or my DBS though (and it was a known fault on DB7s).

[TGearDavid]

Thanks All, Genie Chaser wins the prize.

Tiny crack in the lower o/s/r wishbone diagnosed by AM Reading. £300 for a new one, couple of hours fitting (s/b an hour I reckon as it's easy peasy to get to) + geometry set up. So about £900 inc. vat.

Only second one they've seen crack in 10 years but they actually said it's an 'easy fix' which for an Aston is a first I reckon.

I did have a chuckle at the price of a couple of other things they would like to charge me for "Wiper blades split, requires replacing" - £75.02 !!!!!!!!! and "Headlamps misted up requires dry out and gel packs." - £187.20 the latter I presume to be silica gel packs, something I've always thought may work but never heard of being used on an AM before to address this common fault.

Anyway, thanks for your help