Vehicle check on iDrive, only every 2 years? When to do Coolant/PS fluid change?

[autoque]

I've had my '08 X5 3.0si serviced for 'Vehicle Check' alerted on iDrive this past May. Fiddling with the iDrive today I see the next 'Vehicle Check' is May of 2014, exactly two years from the last 'Vehicle Check'.
Ok, but does this mean I only need to care about engine oil/brake fluid changes and brake wear during those two years? During the 4 years and 3 months of ownership, I've only had one 'Vehicle Check', which the dealer said is just a visual inspection, two engine oil and brake oil changes. Yes, I drive very little(but with lots of short trips and spirited driving) but it seems like a German premium vehicle needs a little more maintenance than this.
When is the engine coolant and power steering fluid change going to happen? Is it the next Vehicle Check, two years from now? It seems like the 'Vehicle Check' schedule is spaced a year too far apart. Advice on maintenance will be greatly appreciated.