BenzWorld Senior Member
Date registered: Feb 2013
Vehicle: 2007 W211 E320 Bluetec
Location: Ontario, Canada
Mentioned: 0 Post(s)
Quoted: 55 Post(s)
Sludge signs after Oil change on my 07 E320 OM642
I used 2 bottles (1L total) of liqui moly engine flush just prior to my oil change. Draining the old oil didn't result in any chunks of sludge or debris in the oil but my magnetic oil drain bolt did grab what appeared to be sludge. Have a peak at the picture. I also pulled my intercooler off thinking it will have crap load of oil but no, nothing! Just oil condensation. I had the intercooler standing up right thinking some oil will drain but nothing. So that's a nice surprise.
Visual inspection through the oil fill cap and down the oil filter valley doesn't reveal any sludge. I'm thinking of scoping the oil pan.
This time, I changed my oil at 9,000km and purchased dealers 5w30 229.52. It's not cheap. 😕
The ultimate ignorance is the rejection of something you know nothing about and refuse to investigate.
– Dr. Wayne Dyer