Inferior technology is only used on inferior cars. BMW stopped using belt timing in the early nineties. They all have chains.
there is no timing belt, or a belt to turn your camshaft if that is what you are wondering, it is all done by a timing chain and there is no service that they need.
After 1991 all BMW's use simplex or in this case, duplex timing CHAINS.
it has a chain
It does not have a cam belt. It has a chain like all bmw's which never requires changing
It uses a cam chain.
If i remember right the BMW diesels have cam chain.
Timing chain.
Yes. Not a chain.
No, it is a chain.
Chain
chain