Matt
Oil service is Oil, filter, microfilter
Inspection 1 Oil filter, Microfilter, Pollen Filter, Fuel filter
Then obviously they check tyes brakes etc
BMW will stamp an oil service and so should independents, this is due at 18K, 36K inspection 1 and so on.
I suggest an intermittent oil change every 9K though
Mine has been remapped with exhaust, decat etc since 28K, now got 170K on clock, on the rollers last month still made 240bhp 450+ft lb.