2010 R350 Bluetec
Thread Starter
Junior Member
Joined: Feb 2018
Posts: 30
Likes: 1
From: Southern Ontario
R350
2010 R350 Bluetec
160,000 km and I have the startup rattle. It only happens when the car has been sitting for over a day. I went from 5w30 oil to 5w40 and it helped. My question is - has anyone tried STP to help this. My thinking is that the rattle is caused by the oil draining off and the STP would help that. Would it cause a problem with the diesel particulate filter? Any thoughts? Roger
Senior Member
Joined: Mar 2017
Posts: 258
Likes: 50
R320, Astro, JSW, ST4
Model year 2010 and I think 2011 are known for timing chain stretch (link to DIY on this forum).
Unless you know it has been replaced, this is likely the problem.
Googling "bluetec timing chain replacement" has 3 videos as well, which you might listen to in order to compare noises/sounds.
If you're mechanically inclined/patient/careful/willing to by a few tools, here is the parts kit.
Good luck!
Unless you know it has been replaced, this is likely the problem.
Googling "bluetec timing chain replacement" has 3 videos as well, which you might listen to in order to compare noises/sounds.
If you're mechanically inclined/patient/careful/willing to by a few tools, here is the parts kit.
Good luck!
Newbie
Joined: Apr 2018
Posts: 5
Likes: 0
2010 B200 Turbo
160,000 km and I have the startup rattle. It only happens when the car has been sitting for over a day. I went from 5w30 oil to 5w40 and it helped. My question is - has anyone tried STP to help this. My thinking is that the rattle is caused by the oil draining off and the STP would help that. Would it cause a problem with the diesel particulate filter? Any thoughts? Roger
