""This engine is a 103 , I have never seen one go bad , never seen one stretch even at 250k miles."

The chain on my M103 broke at 218k miles. I suspect that it was stretched quite a bit before it broke. Bent most (all but two) of the valves on my motor.

Wish I'd have seen this forum before the break and had the advice to change it.

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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)