[stren]

I recently bought my 335, I have some noob questions, that I've searched for but haven't found the answer to:

1. When I turn the car on it says service and below it, 3500 miles and then 05/2010. Does that mean that I need to get it serviced in 3500 miles or by the end of the month whichever comes first? Or is it purely stating the date? Flicking through the menus seem to show nothing about needing a service soon, and I only just bought it as a CPO so I wouldn't be expecting to need one.

2. I'm confused about the different procede revisions. My understanding is that Rev I/II is to do with a hardware upgrade of the procede. Is V2/V3/V4 therefore just a software upgrade? If I buy a V3 second hand would I be able to upgrade to a V4 or would I miss out on the future autotuning stuff?

3. How does mapswitching in the v4 procede work? I've seen posts about DTC being used to map switch and also an RF key fob/homelink being used? Is DTC the default, with the RF keyfob being an optional extra? If I put in suspension upgrades like the Billstein B16/Pss10, can you tie in the sport button for the suspension to also change to an aggressive map?

4. The Billstein B16/PSS10 seems to be compatible with the 3 series, but not the M3. Does this mean if you upgrade the wishbones etc that you wouldn't be able to use the B16 kit?

Thanks!