Also the 528 was replaced with the 530i.
The Round centred m-sport steering wheel and wide screen sat nav are signs of the facelift. But both can be fitted as upgrades easily enough.
There was also a subtle change to the bonnet/grills. Don't know what the change was, it just looks better.
M tech 2 suspension also came with the facelift. You could get the measuring tape out if you want.
Best way is to get the chassis number and fone up BMW and check the original spec list.
Thought you were for buying a 7 series? Whats all this nonsense with tiny little executive saloons?
Couple of pics of my facelifted 2002 530i MSport