[spannerrash]

I did the front wheel bearings on my old B6 A4 which is a very similar setup. The bearing housings were stuck well and truly to the aluminium uprights. IIRC they only seem to go into the upright 5mm or so but that's enough to make em a real pain to remove.

I managed to remove them whilst still on the car with the use of a fairly heavy and long (to get the momentum) slide hammer bolted to the hub. I did half expect at the time that the hub would come out first but they never did. They needed the use of my works 20t press to get them out. Not saying it needed all 20t but they certainly didn't come out without a fight.

Galvanic corrosion, ya gotta love it,...... Or maybe not.