2nd M156 engine died... unreal
Thread Starter
Member
Joined: Nov 2008
Posts: 221
Likes: 9
From: Florida
CL63, 2014 ML63, 2008 ML63, R500, GLK
2nd M156 engine died... unreal
I’m so fed up with this garbage m156 in my 08 CL63.
should I:
1. Sell it as is?
or
2. drop a M113k workhorse into it it for fun times?
should I:
1. Sell it as is?
or
2. drop a M113k workhorse into it it for fun times?
Thread Starter
Member
Joined: Nov 2008
Posts: 221
Likes: 9
From: Florida
CL63, 2014 ML63, 2008 ML63, R500, GLK
First time the valve stem dropped and damaged cylinder, ENGINE WAS SWAPPED.... this time it sputtered hard, blue/white smoke, wont start, big gas smell. I'm just fed up with the M156 engine. It's absolute garbage.
Super Member
Joined: Dec 2009
Posts: 748
Likes: 93
From: Dhahran, KSA
2020 E 300 Coupe and 2019 GLS 400
First time maybe due to a damaged camshaft bucket where the camshaft drilled a hole and the valve dropped. The second time could be due to a leaking fuel injector. The fuel injectors can be replaced cheaply and you can check if the engine is still in good shape (no bent rods...).
Good luck.
Good luck.
MBWorld Fanatic!
Joined: Aug 2003
Posts: 8,882
Likes: 1,212
From: In my garage
E55, GLS450, GL63, GLE350
The injectors are a known failure point for M156 engines. I've read that some suggest replacing every 50k miles to reduce the chance of engine failure. I've had an engine fail due to a stuck injector. The damage is similar to head gasket causing hydro lock.
Last edited by BlownV8; Jul 8, 2020 at 11:26 PM.
MBWorld Fanatic!
Joined: Aug 2003
Posts: 8,882
Likes: 1,212
From: In my garage
E55, GLS450, GL63, GLE350
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Super Member
Joined: Nov 2016
Posts: 672
Likes: 99
From: Massachusetts
2007 E63 Amg
First time maybe due to a damaged camshaft bucket where the camshaft drilled a hole and the valve dropped. The second time could be due to a leaking fuel injector. The fuel injectors can be replaced cheaply and you can check if the engine is still in good shape (no bent rods...).
Good luck.
Good luck.
Also, if the camshafts really ate through the valves there is absolutely no way the OP didn’t hear ticking noise. If this theory is true then the OP should have paid attention to it. But something else such as broken valve spring could have been the culprit.
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