Possible OM642 rebuild
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 29
Likes: 0
2013 GL350
Possible OM642 rebuild
Seeing that a used OM642 costs nearly $10k, I'll probably be rebuilding my engine. Has anybody taken on this task? What's involved in it? Will a speedshop/machine shop be able handle the machining if needed. If not, why not? I've worked on American V8 engines, including complete tear down and reassembly--so, I do have a basic understanding of components. What are the hurdles I'm looking at with a modern MB Diesel. Will I need to get things reprogrammed after the rebuild?
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 29
Likes: 0
2013 GL350
I went to the MB dealership parts dept. today to see if they had a service manual or exploded view/diagram or assembly manual of some sort for the OM642. Unfortunately, the answer was no.
Super Member
Joined: Feb 2017
Posts: 506
Likes: 54
GL350 Bluetec and GLS580
Go to the Sprinter forums. Then report back what you find. 
Seeing that a used OM642 costs nearly $10k, I'll probably be rebuilding my engine. Has anybody taken on this task? What's involved in it? Will a speedshop/machine shop be able handle the machining if needed. If not, why not? I've worked on American V8 engines, including complete tear down and reassembly--so, I do have a basic understanding of components. What are the hurdles I'm looking at with a modern MB Diesel. Will I need to get things reprogrammed after the rebuild?
Super Member
Joined: Feb 2017
Posts: 506
Likes: 54
GL350 Bluetec and GLS580
I don't recall any, I stumble across them when I search, world wide web, for specific issues with our engine. Sprinters are the ones with the highest mileage and most experience.
Senior Member
Joined: Mar 2009
Posts: 401
Likes: 31
From: CT
GL 450, 993TT, Cayenne Diesel, 964C4
Originally Posted by many birds
Ok, I'll post on the Diesel forum. Also, which Sprinter forum are you recommending? I don't see a Sprinter section on MBworld.
