I need to change my oil and filter on a BMW 745I 2002, does anyone know how to do it.

The oil filter is located underneath the vehicle next to the drain plugand accessed through a removable trim cover. If I remember correctly the drain plug is a 7mm allen. The oil filter has a drain plug in it to predrain before removing the filter cap. I do not recommend removing the plug because it strips out sometimes. Instead you need to use a socket and loosen the cap slowly. Your engine will take 8qts bmw syn 5w30 oil. I like the factory oil because it is proven extended life oil. When reinstalling the drain plug make sure to replace the crush washer. Also, make sure to replace the oring on the oil filter cap and lube before reinstalling.