Quote:
Originally Posted by Red Bread
Typically, in the life of a car, the timing chain is considered to last the full life, while a timing belt needs replacement, typically every 60k miles. This is an additional expense of ownership to timing belt cars that gives a slight advantage to timing chains, at the expense of slightly more engine noise.
Audi is a great example of expensive charges to change timing belts, A4's generally required a $1,500 service for a timing belt replacement, and TDi VW's and Audii usually required a change every 40k miles, making any potential fuel savings sort of moot when you considered the full cost to run one.
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Most all Honda/Acura 4-cylinder engines have timing chains, which last the life of the engine (counter to your generic Japanese engine statement). They do have timing belts in their V6 engines. Does BMW have timing belts or chains in their I6 engines?