Just bought an X5 (E53), the steering wheel plastic trim cover is showing a few worn marks so I want to change it.
Is this easy, and how do I do it ?
and where do I find the colour code for the leather trim (its cream and I want to buy some liquid leather to cover a couple of worn marks).

Thanks Phil.

Try www.realoem.com open the site and put in the last 7 digits of your vin number then you can scroll through the menus and find what you need. It has drawings and part numbers.

Interior colour not sure, I know the paint code is on the plate inside the drivers wing maybe interior code is there also, mine has black interior so not very hard to match. I use Black shoe polish on the drivers bolster the only wear point on mine, then Chemical Guys Leather treatment.

With my wifes car (cream leather interior I chicken out with interior and paint) I paid a specialist who repaired a couple of splits in seams and scuffs cleaned and refurbished all the leather and dash for £270 the result was amazing like a new interior.

Hope this helps