Yes it does. At least on a 2003 745 Li if you remove the oil filler cap you will see the chain itself.
it has a chain
If i remember right the BMW diesels have cam chain.
chain, they do not require any maintence.
chain
Chain
It uses a cam chain.
chain
Chain
It uses a cam chain.
The 2.5 litre six cylinder engine in a 1999 BMW 323i has a timing CHAIN
Chain
Yes. Not a chain.