320 Merc. Did you not have enough time to list the year and the full name of the vehicle. Is this a 320 Mercedes or a 320 Mercury? Merc is short for Mercury. Benz is short for Mercedes Benz. Also do you not have an owners manual that you can open and read?
Timing belt/chain or cam belt/chain
if its a single overhead cam it has a belt and if its dual it has a chain
It has a cam belt.
cam chain
It uses a cam chain.
it has a chain
It does not have a cam chain at all, it has a cam belt.
it has a timing chain. IT HAS A BELT !!
Cam Belt
V6 has a cam belt. I4 has a cam chain.
Cam chain
cam belt