c=y=p Delivery Times: UK Delivery is normally the next day for most Wheel Bearing parts, however some Wheel Bearing can take longer. DISCOUNT Smart ForFour UK Wheel Bearing's – BUY Smart ForFour Wheel Bearings
Edited with brilliant youtube editor :P
Smart ForFour front wheel bearing changing is very expensive if you follow manufacturer's recommendation. You need to buy whole wheel carrier which costs here 675€ with taxes.
I will post how the car sounds when I have fixed mine at independent :D