M156 least reliable AMG built engine.......?
#1
M156 least reliable AMG built engine.......?
I most definitely did not make this video but just stumbled across it. I agree with some of his points but the fuel injection was new to me? If you’re bored watch it and let me know what y’all think.
#7
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Saw this the other day to via the UK forum. Most motors have their problems, this just has more of them. Then there is the limp mode "feature" after a few hot laps. Yep, we all bought a great German engineered car fellas
Tasos Moschatos raises similar issues in his youtube videos as well.
Tasos Moschatos raises similar issues in his youtube videos as well.
Last edited by juggernaut1; 04-11-2019 at 07:50 PM.
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#8
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they've only fully designed something like less than 5 production engines from the ground up (M156, M157, M177, and their variants. the V12 started from a Mercedes casting and branched off in development at the request of Pagoni). still...BMW's are designed to fail so it forces you to repair or to buy new. Mercedes nor AMG designs anything in this fashion.
the only thing not fully resolved is the design of the camshaft adjusters. when they become noisy they still for the most part are fully operational.
the only thing not fully resolved is the design of the camshaft adjusters. when they become noisy they still for the most part are fully operational.
Last edited by hachiroku; 04-11-2019 at 05:18 PM.
#9
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Lot's of clickbait and half truths in that video. Look at the positives of the platform instead...the bottom end is stout, oiling is good, power and torque curves are nice, high rpm limits etc. I've had my share of high dollar motors that might as well have been built from glass (I'm looking at you Chevy LS-7) and that's unfortunately part of what comes with performance cars. It's not a beige 2003 Camry...
#10
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Lot's of clickbait and half truths in that video. Look at the positives of the platform instead...the bottom end is stout, oiling is good, power and torque curves are nice, high rpm limits etc. I've had my share of high dollar motors that might as well have been built from glass (I'm looking at you Chevy LS-7) and that's unfortunately part of what comes with performance cars. It's not a beige 2003 Camry...
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Oof gotta love the SL
But why get an SL63 with M156 when you can get the SL550 with a 4.7TT and make more horsepower for less, ya kno
But why get an SL63 with M156 when you can get the SL550 with a 4.7TT and make more horsepower for less, ya kno
#12
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Facelift model fixed most of this. The fuel injectors and the adjusters are really the only issues with facelift models. My adjusters have been making noise in startup for 4 years had them replaced still makes noise. Even so it runs 11s in the 1/4 and sounds like a beast doing it.
#14
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But when that LS7 is actually working though......
Quite true. But....it suffers the same problem as the CLS, E and S class with this motor....they're too heavy for an NA motor to make them truly exciting/scary. That weight advantage of the W204 makes it a good match.
Quite true. But....it suffers the same problem as the CLS, E and S class with this motor....they're too heavy for an NA motor to make them truly exciting/scary. That weight advantage of the W204 makes it a good match.
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You're not kidding. It's legendary for a reason, just needs some work to make it reliable and GM never did own up to any issues even though they changed the valve guide and valve design mid run. I had heads, cams, headers, straight pipes out the back, no cats At the end of the day, a wheel failure on track happened. Too much power I guess But yeah, I mean, 600 whp with bolt ons for a janky old chevy block with pushrods.
I'll say this, AMG did a better job repairing and owning up to defects than GM ever did.
I'll say this, AMG did a better job repairing and owning up to defects than GM ever did.
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Wasn't it the machining of the valve guild housing that was garbage? I remember reading about meat heads just changing to copper guides with solid SS valves which would only 'mask" the problem that would eventually happen later once the material broke down.
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There were a few issues. The sodium filled exhaust valve was too fragile at the neck for one. The other issue was that a certain number of heads were machined improperly with geometry that put pressure on the valve stems and guides causing failures.
#21
Looks like the same old cutting corners and building cheap and pricing high. There is a reason for the cam lifter problems, that have been pretty much eliminated on other manufactures engines. Any guess's ?
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
My guess is that all you trolls should stay in this thread and debate it endlessly and leave your stupidity out of the rest of the forum threads.
Did I get it right
Did I get it right
#23
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False...every manufacturer who has used a cam adjuster has had failure and revision. It is just the mass production manufacturers redesigned theirs and warrantied theirs because they failed earlier and worse.
I have attached a bulletin from Honda. Toyota has has failures...Ferrari has as well. Ferrari just like AMG has not redesigned theirs but have made mention they know there is an issue. Maybe Ferrari didn't make mention but it's known their F430 cam adjusters fail.
If Cam Adjusters tend to fail more so out of warranty than manufacturers have no incentive to warranty these. They should offer redesign though as most Mercedes parts have had many revisions. I can only assume they did not reuse this part or design on any other engine so they literally abandoned thoughts to redesign for the better.
Cam adjusters on the M156 become mildly noisy but continue to function. Other manufacturers see engine failure or in some cases cam adjuster seizing.
In other designs I don't see a definitive design change...maybe more oil galley's that is about it. Functionally all very similar.
Last edited by hachiroku; 04-23-2019 at 03:27 PM.