Assuming you would like an answer for a basic tune-up:
A BMW 750 Li will cost approximately $200 to tune-up. This price may differ depending on the location, mechanic, and what is included in the tune-up service.
The average cost of a full engine tune-up can range anywhere from $500-$900. This includes all fluids being flushed and replaced, new spark plugs, new air filter, new fuel filter, new drive belts, and more.