Heated Wide angle side mirrors

[bmw2805]

Hi,

I want to do the retrofit of the Euro wide angle mirrors and I have the following questions :

1. How do I know if my current 2002 X5 4.6is have heated side mirrors or not?
2. If my X5 were not to have heated side mirrors, then what does it take to retrofit the heated wide angle side mirrors.
3. Are there install instructions anywhere to remove and replace side mirrors?
4. can someoen please confirm which of the following psrt numbers are correct :

I go these numbers from x5monkey postings here :
51-16-7-039-597
51-16-7-039-598

But then Cravier gave me these number :
51 16 7 039 595 mirror glass, heated, wide-angle, left
51 16 7 039 596 mirror glass, heated, wide-angle, right

I understand the x5Monkey had done this retrofit and have sent him emails but no reply yet.

Thanks all for your reply.