To much rear Neg camber?
 

I recently bought a 2005 turbo diesel 172,00k's and after replacing a front CV boot I had it wheel aligned and the rear was neg 2.03 left and 2.09 right (which I assume is out of spec and to much anyway) We checked the car on the hoist and couldn't find any play, including the cradle bushes which we removed the bottom plates to inspect and all appear ok. As expected the inner rear tyres are wearing out. Is this normal or are the rear control arm bushes worn or? The front don't have enough neg as only 0.12 and 0.10. The front should have more neg than the rear.

In my E39 1998 528i, I adjusted the REAR tire camber down to 1 degree or so.

I think you can do the same for E53.

Here is the link for E39 rear camber that I did a while ago.
DIY: 1998 528i REAR Wheel Alignment - Bimmerfest - BMW Forums

Thanks for the info and link. So does the E53 have adjustable front and rear off set camber pin bolts? If so I guess the wheel alignment shop just did a toe and go.

I just found this which explains a lot.

https://www.youtube.com/watch?v=_guTE2ANcIg

that lower ball joint he is talking about is pressed into that giant flat arm, which is quite a pain to get out or press out in situ. That's why most E53s you see driving down the highway look stanced. They are old.

Wow I'm glad you shared that video. Time to start checking into those ball joints.

Anyone make aftermarket ball joints to help with the squat?

Once you verify all the parts are good. There is a company that makes adjustable arms for toe and camber beyond factory adjustments.
These are super useful if you are not at factory height any longer.

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That is a smart idea

The majority of the time when one suspension piece starts to fail the associated parts are on their way out as well. Should check closely so that you address anything else while it is torn down especially if you aren't doing your own work.

Not unusual for an owner to replace the parts that are easiest to do and not replace the ball joints and swing arm bushings that require more work and disassembly. Not difficult job as long as you have the right tools. I purchased some of the parts I needed from ECS Tuning but I think FCPEuro also stocked the parts. Mine is lowered and has 18mm spacers. I can get within the negative camber specs without aftermarket options to help.