Video - M278 Bi-Turbo 4.7 V8 Failed Engine Teardown
Out Of Control!!
Joined: Apr 2019
Posts: 11,958
Likes: 6,801
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Let's see what caused this clean failure...
A piece of piston shaving ended spinning a con. rod bearing after contaminating clean oil circuit through filter bypass valve.
A piece of piston shaving ended spinning a con. rod bearing after contaminating clean oil circuit through filter bypass valve.
Last edited by CaliBenzDriver; Aug 9, 2024 at 05:37 PM.
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Joined: Aug 2018
Posts: 90
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From: Arizona
2007 GL 450 (former) and 2012 E550 Coupe
44:50 if you want to skip to the "what happened" portion.
For me, I found the process of disassembling the engine and parts to be the most interesting. The "why" of the failure was secondary.
For me, I found the process of disassembling the engine and parts to be the most interesting. The "why" of the failure was secondary.
Out Of Control!!
Joined: Apr 2019
Posts: 11,958
Likes: 6,801
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Erik's dismantling video are always a lot of fun to watch !! 
I saw this video already a couple month back.
M276/8 engines do not have any oil pressure nor temp sensors. The Bosch firmware is able to guestimate oil conditions...
I saw this video already a couple month back.
M276/8 engines do not have any oil pressure nor temp sensors. The Bosch firmware is able to guestimate oil conditions...
