The 2002 BMW Z3 is equipped with a timing chain, not a timing belt. Timing chains are generally more durable and do not require regular replacement like timing belts do. However, it's still important to maintain the engine properly to ensure the timing chain functions correctly over time.
no timing chain
the e60 520d bmw has a timing chain
timing CHAIN
Timing chain Chain
chain
The BMW m52 has a timing chain not a timing belt. there is no maintenance on the chain it is made for the life of the engine.
It has a chain.
timing chain
Chain
Chain.
it has chain
do you have to change a timing belt on a 93 318 is BMW