You need to check your owners manual first and then look at the cap on your power steering pump...it should have either CH 7.1 or CH 11. This tells you which number of Pentosin oil you need to purchase. Whatever you do...DO NOT put pink ATF in your vehicle...it will cost you big $$$ when the hoses to your rear LAD and steering pump begin to deteriorate and leak! Pentosin is a green hydraulic fluid and can be purchased from places like your local BMW dealer, Audi dealer, and aftermarket sellers like BavAuto, Bekkers, and BMP. It usually runs around $14- $18 dollars per litre. What type of ATF for power steering in 750iL?