ELI5 - OM642. Good? Bad?
Thread Starter
Member
Joined: Mar 2008
Posts: 103
Likes: 10
From: Canada
2012 ML350 Gas
ELI5 - OM642. Good? Bad?
I've been reading countless amounts of threads and still hard to get a decent conclusion about this engine. Some people love it, say its bulletproof. Others say its the worse engine ever made.
I found a 2012 ML350 with only 25K miles and wondering if I should pull the trigger or not.
From what I can understand the issues with the Adheater/EGR can be avoided if I just use the correct oil and do oil changes at 5K miles instead of 10K miles. And change the oil filter every 2.5K miles? Also buy only Diesel from Shell V-Power stations?
Worst case, If I do get these Adheater/EGR issues, I can just do the ECU firmware hack and just delete those components and not get any issues.
Can someone sum it up to me? Or should I just get a gasser however seems 80% of the ones for sale are all BlueTecs
I found a 2012 ML350 with only 25K miles and wondering if I should pull the trigger or not.
From what I can understand the issues with the Adheater/EGR can be avoided if I just use the correct oil and do oil changes at 5K miles instead of 10K miles. And change the oil filter every 2.5K miles? Also buy only Diesel from Shell V-Power stations?
Worst case, If I do get these Adheater/EGR issues, I can just do the ECU firmware hack and just delete those components and not get any issues.
Can someone sum it up to me? Or should I just get a gasser however seems 80% of the ones for sale are all BlueTecs
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
What's your location?
In USA this site will give information about status of Mercedes-Benz Bluetec Update
https://bluetecupdate.mbusa.com/home
If it applies, it will follow with 4 years warranty on most of engine parts.
Hard to beat the deal.
OM642 is 20 years on the road and still produced. When it had weak points like oil cooler seals, or intake flaps, it is lovely performer.
In USA this site will give information about status of Mercedes-Benz Bluetec Update
https://bluetecupdate.mbusa.com/home
If it applies, it will follow with 4 years warranty on most of engine parts.
Hard to beat the deal.
OM642 is 20 years on the road and still produced. When it had weak points like oil cooler seals, or intake flaps, it is lovely performer.
MBWorld Fanatic!
Joined: Jun 2021
Posts: 1,921
Likes: 522
From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
MBWorld Fanatic!
Joined: Jun 2021
Posts: 1,921
Likes: 522
From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
MBWorld Fanatic!
Joined: May 2017
Posts: 1,234
Likes: 155
From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
See the link below, lots of info. Glean from it what you will..
PS: This ought to light a fire under some... LOL
http://www.stephensservice.com/bluet...ssuesproblems/
PS: This ought to light a fire under some... LOL
http://www.stephensservice.com/bluet...ssuesproblems/
