Hi everybody,
In need of some advice if anyone can help.
I have an unidentified knocking noise on the underneath of my 2004 FF 3.0 Diesel Vogue.
This knocking can be heard very clearly at low speeds whilst travelling over uneven surfaces like a bumpy road etc, on the smooth flat complete silence.
I have recently had both rear N/S & O/S hub bushes replaced but can't find the cause of this knock.
I sounds like the exhaust knocking on the chassis that sort of noise only when going over a bumpy surface in rhythm with the suspension. After having the rear hub bushes changed due to the noisy squeak my local independant dealer they checked underneath and couldn't find anything lose.
Any ideas folks, there is no transmission play, goes into gear smooth, air suspension all seems fine, no knocking under acceleration or breaking, fine on cornering both low or high speed, this knock seems to appear at low speeds on uneven surfaces.
Thanks in advance

Try a search for front lower arms - believe you can get this kind of knocking if worn

Also, I think anti roll bar drop links are another suspect

Good luck finding the cause  2007 Zermatt Silver TDV8 Vogue SE - now sold but was a great car!

Thanks for you help, will get checked.

Drop links usual suspects and peanuts to change.... '08 Audi S6 Avant 5.2 V10 with Milltek non-resonated. Vrrrrrrmmmmmph
'59 Ford Kuga Diesel (boring but AWD and 40mpg...)
2007 (07) Subaru Forester XTen 2.5 Turbo. (Roundabouts are fun again!)
2007 (07) 4.4 V8 Vogue (gone)

Arb Drop links

Cheap as chips, give them a wiggle and a twist, should be reasonably stiff to move with no play. If they haven't been done it's a good place to start. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Dont buy the cheap ones. Present :2008 TDV8 HSE
Gone Audi A5 2.7TDI
Gone Discovery 3 HSE
Gone Mercedes CLK
Gone Range Rover 2.5 DSE

Just get originals from Duckworth  MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Thanks Guys, had the old girl out today listening for noises, seems like the noise is more to the rear than front, as if exhaust is knocking on the boot floor. it's difficult to tell exact location as the sound proofing in the FF vogue is brilliant, but sounds like centre to rear.

Rear drop links? There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

I had exact same problem, definitely sounded like it was coming from the back, even passengers said so.

Replaced the front ARB drop links and problem solved.

As previously said, use LR ones, otherwise you will be back replacing them again in 6 months. .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Thanks guys for all your help, drop links it is.

The LR ones are lemforder items, they even have the logo on them.

They can be had from ecp for a good price. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

And as we know from RRPhil, Lemforder are a subsidiary of ZF and known for their high quality.

Very lemony (as in sharp) today Kurt  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999