so when does a timing chain need to be changed?
2002 Mercedes-Benz ML320
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1 answer
Question -
caution, Livermore, CA, April 01, 2009, 09:24
how do i find out when to change it
Answer #1
irvtech, April 01, 2009, 14:48
I don't know of a timing chain service interval for that motor. Most vehicles with overhead camshafts do not have service intervals. These motors have adjusters that take up timing chain slack due to stretching To replace these chains, the whole front of the motor needs to be disassembled. The chains are changed when the motor is being replaced or you could possibly change them if you have the cylinder heads removed, (for whatever reason) but I would not start to worry until you have over 200,000 miles. This is assuming you are following a good maintenance routine.
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