M271 engine need your help!
Thread Starter
Member
Joined: Aug 2016
Posts: 158
Likes: 4
From: Seattle
2019 GLC300 4matic, 2019 C300 4matic, 2018 C300 4matic, 2009 C300 Flex, 2004 C230 Kompressor
M271 engine need your help!
Hey guys, so i read a lot of horror stories about timing chain skipping time and messing up the valves on M271 engine. I recorded a video of a cold start and wanted to see if you guys think it sounds ok or not? I appreciate your input!
94k miles
94k miles
Last edited by dboyrusky; Oct 23, 2016 at 07:42 PM.
Super Member
Joined: Oct 2013
Posts: 527
Likes: 20
From: Carolinas
2005 C230K SS
You can inspect for chain slack across the top guide as well as the condition of the sprockets and guides themselves. With the VC off, turn the crank bolt clockwise to inspect the chain better since sometimes the slack is not apparent at first. As a starting point, my TC looked like this when I replaced it preemptively at 122k ish miles. Mine turned out to be barely stretched about 2mm. Car sounded same before and after the replacement.
Also realize that the M271 is not exactly a silky smooth engine when it comes to the sounds it makes.
Also realize that the M271 is not exactly a silky smooth engine when it comes to the sounds it makes.
Last edited by RWDlifer; Oct 24, 2016 at 08:39 AM.
