If the owner want to do his own oil change between free dealer 20k oil change, he should buy Mityvac Fluid Evacuator MV7201. The cost is about $60-70, it will pay for itself after 4-5 oil changes.
Newer BMW's and MB's are designed to suck out the oil from dipstick, and the cartridge oil filter is on top of the engine so that it is easy to change without going under the car. It should take less than 20 minutes to change oil+filter and no mess.
Since he is in Florida, he should consider Delo 15W40 and 5k OCI for oil but 10k for filter.
Newer BMW's and MB's are designed to suck out the oil from dipstick, and the cartridge oil filter is on top of the engine so that it is easy to change without going under the car. It should take less than 20 minutes to change oil+filter and no mess.
Since he is in Florida, he should consider Delo 15W40 and 5k OCI for oil but 10k for filter.