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Spare the crucifying (believe me I’ve already been doing enough myself)
I have a 2008 ML550 and I was performing an oil change and forgot to tighten the oil filter down all the way.
drove it about 20 miles (no hard accelerations) before making it back home and smelling oil then noticing the pool spilling below.
now I have a p0017 and p0016 that won’t clear
which after looking on the star system says “replace timing chain” does any Mercedes techs or anyone who’s messed with m273s know if the timing chain is just stretched or did it jump a tooth?
I have since added new oil and filter. And it runs just fine at idle. Makes a little rattle noise when I drove it around the block.
I’d like to just figure out what I should do next. I imagine at minimum I will be feeding in the new timing chain from the camshaft area.
Last edited by AGENTXG7; May 19, 2025 at 02:27 PM.
if the tensioner lost pressure then the cam gears can jump a tooth, most likely when you turn the motor off. Xentry can tell you the cams position to verify.
Assuming no valve contact you simply move it back a tooth.
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