Experiencing some undesirable handling & knocking noises from my '11 L322 lately.
Excuse the essay, will try to explain as best I can.

Steering doesn't feel quite right.
I recently replaced both arms and balljoints.
With engine off, when turning wheel side to side you can hear a knocking. (engine on, no knocking.
I changed the offside steering arm and end as it felt like it was from that side (no change)
Steering has been slightly off centre since I bought it. So also retracked with very slight Toe In.
Drives straight but is easily pulled about by the road surface. Also doesn't ride bumps the best front or rear (more on that to follow).
Does anyone else have knocking noise when turning wheel with engine off? Or is it new rack time (no leaks)
Currently running L405 21" wheels with matching Pirelli tyres all round.

Now for the rear.
Changed the upper bushes as they were shot. Seemed to be ok for a short time.
Now get pretty bad ride quality. Upper bushes are fine. Cannot feel any play in Lower bushes.
Anti roll bar links front and rear seem ok (doesn't sound like ARB link noise)
Also can't feel any excess play in the rear toe arms. But quite hard to tell.

Any help would be appreciated.
Starting to avoid driving it.

I think with the knocking you need someone to rock the steering wheel while you get underneath mate for a listen. If it's not the trackrod it could be pulling on another joint as it pulls the wheel.

What mileage are you at..?

If the front is making a noise then get a friend to turn the wheel and make it knock while you craw under and touch the arms etc, you should be able to feel where the knock is coming from...

A friendly MOT garage may let you use their lift, or ask them to check, shouldn't cost much...

Get the rear jacked up with the weight off the wheels and see if you can get play in anything...

When sorted, get a 4 wheel alignment done, there is a lot that can be adjusted and it wants to be right...  Pete
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Following this up.
Mileage is just over 100k.
How common are the rear subframe bushes?

I cannot feel any play in any joints. Have replaced the rear upper bushes as they were worn.

On the motorway it feels like the rear end skips sometimes when changing lanes/driving over cats eyes.
Makes me think the bushes have gone.
The knock also isn’t more prominent one side to the other.