W212 AMG Discuss the W212 AMG's such as the E63
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Valve cover gasket oil leak m156 engine

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Old 02-01-2016, 10:36 PM
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Valve cover gasket oil leak m156 engine

On my 2011 E63 the left side valve cover (driver's side here in the U.S.) started leaking small amounts of oil dripping on to the exhaust causing burnt oil smell and smoke. Dealer is doing the repair and it is covered through my Carchex extended warranty. And I have a loaner while my E63 is in for the repair. So I am not stressed about it, but I am concerned about the long term reliability of the car. It only has 63,000 miles on it. My 2011 Hyundai Genesis 4.6 V8 ,with all the bells and whistles, has 176,000 miles on it and has never required anything but maintenance.
Old 02-02-2016, 03:51 PM
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Let me start with the typical responses:

"The M156 is a sophisticated engine that will require a lot more maintenance than a typical Hyundai engine. You should expect this for the high performance you get"

Completely ignoring the fact that 500-520 BHP from a 6.2l is hardly that sophisticated.
Old 02-02-2016, 05:39 PM
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Originally Posted by kponti
Let me start with the typical responses:

"The M156 is a sophisticated engine that will require a lot more maintenance than a typical Hyundai engine. You should expect this for the high performance you get"

Completely ignoring the fact that 500-520 BHP from a 6.2l is hardly that sophisticated.
I am aware of maintenance on an E63 but a valve cover gasket at 63k miles is not maintenance. And my Hyundai has 385hp and quad cams too, but no oil leaks at 176,000 miles. I love both cars and did not mean to bash Mercedes. The transmission service on my Hyundai (same transmission used in Bentleys) actually cost more than the Mercedes service. Its not the cost that is an issue, but a valve cover gasket is a simple item and should last indefinitely if the cover has not ever been removed.
Old 02-02-2016, 08:14 PM
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I was not directing this at you, simply taking the winds out of the usual posts before they clutter your thread up.

To answer your question, it is not unusual for MB engines to have a leaky gasket before 100k miles
Old 02-02-2016, 08:55 PM
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Originally Posted by kponti
I was not directing this at you, simply taking the winds out of the usual posts before they clutter your thread up.

To answer your question, it is not unusual for MB engines to have a leaky gasket before 100k miles
My E500 with 151,000 on it has had no oil leaks. In fact other than replaced front airmatic shocks and the SBC replaced under warranty the car has been trouble free. My Mercedes cars and the Hyundai have been much more reliable than the Acura I had. After doing some reseach It appears that the valve cover gasket leak has happened often on the M156. Here is a link to the same problem https://mbworld.org/forums/w212-amg/...ke-engine.html
Old 02-03-2016, 02:44 AM
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Originally Posted by kponti
Let me start with the typical responses:

"The M156 is a sophisticated engine that will require a lot more maintenance than a typical Hyundai engine. You should expect this for the high performance you get"

Completely ignoring the fact that 500-520 BHP from a 6.2l is hardly that sophisticated.
Yes, the coolest car I've ever own!
Old 02-03-2016, 04:15 AM
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Originally Posted by kponti
Let me start with the typical responses:

"The M156 is a sophisticated engine that will require a lot more maintenance than a typical Hyundai engine. You should expect this for the high performance you get"

Completely ignoring the fact that 500-520 BHP from a 6.2l is hardly that sophisticated.
SO much awesome in a single post

Originally Posted by homeofstone
On my 2011 E63 the left side valve cover (driver's side here in the U.S.) started leaking small amounts of oil dripping on to the exhaust causing burnt oil smell and smoke.
Same here bro...but you found my thread from a few months back

Originally Posted by kponti
To answer your question, it is not unusual for MB engines to have a leaky gasket before 100k miles
Yep, my E55 had the same issue and I replaced the gaskets at....just over 70k. On this car is happened at...probably shortly over 70k also.

Originally Posted by dustinN
Yes, the coolest car I've ever own!
Absolutely. I love mine too!
Old 10-12-2019, 06:27 PM
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DIY video I made for this job


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