Yes they would be fine - they will come with amber bulbs to replace the standard clear bulbs.
If you then decide you dont like the amber bulbs because you can see a bit of the orange through the clear repeater then you can go for chrome bulbs like these.
Chrome 501 Side Repeater Bulbs BMW mini / cooper X3 X5 on eBay, also Bulbs Lenses, Lights Lighting Accessories, Car Tuning Styling, Cars, Parts Vehicles (end time 18-Feb-08 20:24:48 GMT)