Assuming 6-cylinder inline gasoline engine (325ci, 330ci, etc; M52 or M54 engine code) on an E46 chassis 3er it is chain-driven.
it has chain
a chain
Chain
it has a chain
it has a timimng chain
It has a chain.
The 2004 E63/E64 BMW 645ci has the N62B44 V8 engine, which uses a timing chain, not a timing belt.
No. It uses a timing chain.
If i remember right the BMW diesels have cam chain.
chain, they do not require any maintence.
Timing chain - all E36 and E46 models use a timing chain.
The 2.5 litre six cylinder engine in a 1999 BMW 323i has a timing CHAIN