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Old 01-13-2002, 12:24 PM
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blackmercedes blackmercedes is offline
Just a guy
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492
I've owned a few of these M102 engines myself, all driven to over 300,000 kilometers (my 87 190E 2.3 is now owned by a friend of mine that's at 500,000).

I changed the timing chains between 160,000 and 200,000 kilometers. None were stretched enough to warrant replacement, but it's inexpensive, and gives peace-of-mind.

If I were you, I'd change the chain and tensioner.
John Shellenberg
1998 C230 "Black Betty" 240K

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