Misfires & Check Engine Light
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
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'10 C63
I forget what the dealer quoted me but it was somethinng stupid like $700 or maybe $900. Replaced the IM gaskets, bolts and pcv for like $140. Easy to do.
https://mbworld.org/forums/c63-amg-w...valve-diy.html
https://mbworld.org/forums/c63-amg-w...valve-diy.html
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C63 AMG
Did you just have the headers installed? If so, confirm the primary o2 sensors are connected to the correct exhaust streams. If they are crossed, it will do this after a bit of driving and the ECU is confused.
Headers will also fry the primary o2 sensors over time. These engines run closed loop, without proper o2 feedback engine will run like crap. How did the plugs look?
Headers will also fry the primary o2 sensors over time. These engines run closed loop, without proper o2 feedback engine will run like crap. How did the plugs look?
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Thread Starter
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Joined: Jul 2015
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
The dealership told first told me it was the sparks, then said coils, and then after i mentioned the o2 sensor to them because thats what everyone on the forums is telling me.. they were like "its most likely the o2 sensors" they changed them.. and nothing has changed.. they're charging me for everything and they can't figure out the problem. This is the second dealership I've been to that don't know what the problem is.
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Joined: Jul 2015
Posts: 96
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
Did you just have the headers installed? If so, confirm the primary o2 sensors are connected to the correct exhaust streams. If they are crossed, it will do this after a bit of driving and the ECU is confused.
Headers will also fry the primary o2 sensors over time. These engines run closed loop, without proper o2 feedback engine will run like crap. How did the plugs look?
Headers will also fry the primary o2 sensors over time. These engines run closed loop, without proper o2 feedback engine will run like crap. How did the plugs look?
The dealer told me to change the sparks because they needed to be changed and that it was causing the misfires and CEL and shaking, the dealer changed them... and problems still there... then they said its the coils... they changed those too.. and nothing changed.. then lastly everyone on forums said its the o2 sensors... changed those.. and nothing.. still the same problem...
I rather not tell the dealership anything else because they'll just tell me yea its probably that.. and charge me for the fourth time.. and solve nothing.
I don't know what else it could be
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
BUT now idk what the issue is... and nobody seems to know .. the dealership is just guessing and taking my money.
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e63 amg w212 6.3
I need some help please.
My C63 is having CEL and misfires.
At first the codes were P0300 301 303 304
I had all my spark plugs changed and reset the computer. The problem went away and the car drove fine for maybe 30 miles.
Now it has really rough idles and shakes really bad slowing down to a complete stop and accelerating from a stop. It threw similar codes just different ending numbers.
Anyone know what this problem is?
I have headers and midpipes and a tune.
My C63 is having CEL and misfires.
At first the codes were P0300 301 303 304
I had all my spark plugs changed and reset the computer. The problem went away and the car drove fine for maybe 30 miles.
Now it has really rough idles and shakes really bad slowing down to a complete stop and accelerating from a stop. It threw similar codes just different ending numbers.
Anyone know what this problem is?
I have headers and midpipes and a tune.
I've also been told it may be the Headbolt issue... :/
they are striping the engine apart in 2 weeks completely to find the problem.
I will get them to check the 02 sensors to see if it helps, also the Intake Manifold... :/.
Last edited by faz492; Dec 22, 2016 at 08:56 AM.
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
my car did the same thing.... like u said spark plugs changed, ECU reset.. had the car towed back.... started it... shakey on idle switched itself off... now its not starting at all its not cranking over...
I've also been told it may be the Headbolt issue... :/
they are striping the engine apart in 2 weeks completely to find the problem.
I will get them to check the 02 sensors to see if it helps, also the Intake Manifold... :/.
I've also been told it may be the Headbolt issue... :/
they are striping the engine apart in 2 weeks completely to find the problem.
I will get them to check the 02 sensors to see if it helps, also the Intake Manifold... :/.
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e63 amg w212 6.3
I'm not trusting them 100% on this.
It could maybe be a valve spring from what a shop said to me..
But eitherway have to strip the motor apart to figure out.
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
I dont have warranty, But if it is the Headbolts you can get a camera remove the sparkplugs and check around there or some crap the dealership was telling me because they would find water/coolant etc.
I'm not trusting them 100% on this.
It could maybe be a valve spring from what a shop said to me..
But eitherway have to strip the motor apart to figure out.
I'm not trusting them 100% on this.
It could maybe be a valve spring from what a shop said to me..
But eitherway have to strip the motor apart to figure out.
I've done just about everything they said could be the issue, but there hasn't been any difference in the cars condition. I think they already checked for leaks but found nothing.
I will bring up the valve spring to them and hopefully they don't charge me to fix the valve spring like everything else.
Thanks!
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e63 amg w212 6.3
I'm hoping its something small and stupid thats causing the problem.
I've done just about everything they said could be the issue, but there hasn't been any difference in the cars condition. I think they already checked for leaks but found nothing.
I will bring up the valve spring to them and hopefully they don't charge me to fix the valve spring like everything else.
Thanks!
I've done just about everything they said could be the issue, but there hasn't been any difference in the cars condition. I think they already checked for leaks but found nothing.
I will bring up the valve spring to them and hopefully they don't charge me to fix the valve spring like everything else.
Thanks!
Thread Starter
Member
Joined: Jul 2015
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
Senior Member
Joined: Apr 2014
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e63 amg w212 6.3
http://weistec.com/all/c/c-63/2012-2...internals.html
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Joined: Jul 2015
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From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
pistons/rods which can withstand up to 1000hp and a harder beating if you want to supercharge your car in the future etc.
http://weistec.com/all/c/c-63/2012-2...internals.html
http://weistec.com/all/c/c-63/2012-2...internals.html
I plan on keeping the car the way it is, already has headers/mids/catback and tune.
Senior Member
Joined: Apr 2014
Posts: 425
Likes: 15
e63 amg w212 6.3
Thread Starter
Member
Joined: Jul 2015
Posts: 96
Likes: 0
From: Upstate NY
2009 C63 AMG, 2013 CLS63 SAMG, FORD F350, BMW 750LI
Senior Member
Joined: Apr 2014
Posts: 425
Likes: 15
e63 amg w212 6.3
Quote from weistec:
By now many have heard of the issue of accelerated wear in the valvetrain of the M156 engine. The materials design of the valvetrain components results in repeated contact of soft metals with hard metals. Eventually this can result in premature wear of the valvetrain, degrading engine performance or even causing engine failure.
Many M156 valve buckets are prone to "bleed down" resulting in excessive valve lash during cold start up, commonly heard as a loud tapping noise until the engine fully reaches operating temperature. Excessive valve lash is a major contributor to accelerated valvetrain wear. The M159 engine, used in the SLS and SLS roadster, features valve buckets that are of an improved design. The M159 valve buckets feature an anti friction coating to reduce wear on the camshaft lobes. They also have an improved hydraulic system that will not "bleed down" like the M156 valve buckets. Installation of M159 valve buckets will help prevent any premature wear to your engine's valvetrain and make for a quieter engine on cold starts.
Key Features:
- Anti Friction coating
- Improved Hydraulic system
- Direct Replacement for M156 Valve Buckets
