Hit a curb - Snow chaos

The E60 (and the E39) bearing comes on a stub axle with a flange connection to the steering knuckle so no need to horse up a central nut to 300+Nm as there isn't one.  Part #6 are the hub bolts which are accessed from behind the hub.  It would probably be easier to remove the strut to get to the hub bolts.  Removing the strut is more involved and you would probably need spring compressors.

Part #5 is the bearing/hub/mounting flange in the above link.

The method used here means it would be easy and therefore cheap, to install a front wheel drive hub/shaft assembly as part of the 4 wheel drive 5er which we don't get in this country.

A workshop may be able to remove it while the car is on a ramp without having to remove the strut.

Sorry for the silence, I was damn busy with office work.

Anyway I managed to get wheel alignment done by a local mechanic who used Hunters hawk eye HD alignment system and I can feel some improvement in handling since then. Here is snapshot of before and after alignment data

Before:

After:

As you can see from the picture caster is not adjustable and they are not right. My car still banks to the left, not that much as before but doesn't go straight either. Local mechanic asked me to come next day so that he can see the car in detail.

Next day he ramped up the car and looked underside (cover was opened) and could not find anything wrong at all. Everything was normal to his eyes. I asked him to check for bushes and any obvious broken/worn/bent parts and he said all looks good. He also took some measurement manually and that too wasn't looking bad either. However from side of both the wheels we could clearly see the different in the caster adjustment of left hand wheel and the right hand wheel. Distance between tyre edge (treads) to the wheel arches (or wheel well) on the left hand side wheel was not equal to right hand side, hence the caster difference and banking to the left. I was told that caster is not adjustable on this model, so you need to look at the suspension and related part to make sure it is not bent/broken and start replacing these one by one to exactly ruleout the possibility of suspension problem. To me this approach sound too costly. Any other way of adjusting caster on my car? Can't imagine car having such a basic thing welded to the chasis!

Regarding shimmy I misunderstood that steering is vibrating up and down but it is not like that. Upon braking steering is rotating to left and right by a degree or so very quickly causing a rumble feel. Mechanic told me by his experience that this is due to discs, nothing else can cause this. However I have realized a very small shimmy on higher speed (60 or so) even without braking, this one is hard to notice but once you leave steering wheel on a straight road above 50mph you can see steering shimmy which goes away quickly.

Can't imagine I introduce so many trouble to myself by just deciding to drive in snow. What kinda car BMW is making, wheels aren't man enough to take this much of snow. What a stupid car!