could anyone help me ive got a bit of a knock, all was fine then i did the discs and pads, now if you brake its fine but if your creeping forward in traffic and do a sharp tap on the brakes it makes a knock, got my lass to drive when i got back and cant tell which side so maybe both, its not suspension or anything, also doesnt do it in reverse, only thing i can think is either a) a calipers slightly loose or something b0 are the pads sided i.e shamfered on one edge to stop them catching the disc so sharp, wont be using till ive found it but dont know when ill get itme to look, thanks

Sounds like worn ARB bushes. 2014 L405 SDV8 RR Autobiography

2012 RRS SDV6 HSE -Orkney Grey with A/B bodykit - Now Gone
2007 RRS TDV6 HSE - Zermatt Silver - Gone

Last edited by JasM on Sun Dec 01 2013 9:16pm. Edited 2 times in total

didnt do it though till i changed the discs and pads the other day

Sounds like worn front lower arms bushes

Common culprit of knocking noises when braking. Changed loads of arms/bushes for this exact problem

well not that i noticed! it was my lass who said it was banging, and i did a trip 60 miles and it never did it with me untill i was trying to re created what she said then thats when it did it, tbh when she was driving me stood near car i thaught it sounded like middle of car but thaught it cant be but if it has arb bush worn that would tally, need to look

Knock when you brake sharply from low speed is usually the front lower wishbone bushes. Perhaps improving the brakes has highlighted the issue?
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Assuming you didn't forget to torque up any of the bolts. We've all done it  2008 MY Java Black TDV8 HSE

yeh if you creep along under 5 mph the jab the brakes it knocks.

going to check if tightened everything up, has happened in the past as you say weve all done it!

anyone know anywhere i can buy the front lower bushes from as just bushes to press in?

Advanced Factors

That said, the arms may need cut off, due to the bolts being seized

As said by others, probably lower arm bushes.

Ive just had the same thing repaired a couple of weeks ago, didn't bother with bushes though, just had arms replaced as what you will save in parts just replacing the bushes you will spend in the extra labour of fiddling around with them.

Got mine from http://www.johncraddockltd.co.uk

Front Lower RH Suspension Arm 4.2 Super Charged 4.4 V8 2.7V6 2005 - 2009.
#LR029304 £89.95 1 £89.95

Front Lower LH Suspension Arm 4.2 Super Charged 4.4 V8 2.7V6 2005 - 2009.
#LR029306 £89.95 1 £89.95


Total (Exc Vat): £179.90
Total (Inc Vat): £215.88

sparky did you have my symtoms, im thinking because i had warped discs before i was gentle with it, since i replaced discs and pads brakes are a1 and now i seem to get this noise, can anyone confirm that disco 3 has the same arms as the rrs on 2005 2,7, just ecp etc seem to list the disco stuff at around 30% cheaper than rrs items, i was going to get bushes as ive access to a press but tbh by the time ive bought a ball joint and the 2 bushes its nearl as cheap as an arm, also struggling to find the arm bush that faces to the front bumper,

Yeah started with a knock when you brake sharp at low speed but quickly got worse and could here same knock when going over bumps, new arms sorted it though and its silent now.

RRS bushes are different. Slightly stronger/firmer than the D3 bushes.

The D3 arms will physically fit though

il just get rrs ones then, just thought it might be a scam trying to get more money from rrs owners