[kmli5]

Service interval is condition based. The car tells you what and when to service, you can either look it up in idrive or thru pressing the BC button on the indicator stalk.

The only 'major thing' I can think of at 75000km might be brakes. Other than that, it's the usual oil change, brake fluid, various filters change and spark plugs. Other extra things I would recommend is gearbox oil change and diff oil change. You should also go to a BMW specialist rather than a dealer if that suits you.

Lookout for the general things like crash repair and oil leaks. Engine should rev nice and fast with a decent exhaust noise.