Quote:
Originally Posted by khooper
your supposed to/should change them atleast once a year so I would say just go ahead and do it, its just a simple maintence procedure to a long lasting/reliable car.
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Yeah, might as well replace the pistons too.
But seriously, the M104 doesn't share the timing chain issues of some earlier MB engines, so at 65K I wouldn't even consider replacing it. Now, if I was doing a head gasket/valve job on a high mileage M104, I might consider replacing the chain just for insurance purposes, only because it doesn't cost much, and it's an easy job when the cylinder head is removed.