Fuel Pump Issue? Tune Issue? Trans?
Thread Starter
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2012 C63 Coupe
Fuel Pump Issue? Tune Issue? Trans?
Hi Everyone,
For the past few months, my 2012 C63 has been more delicate than usual.
It has a Eurocharged tune and x pipe with 153,400kms and the tach is sputtering under acceleration. Stomp on it at it'll start to rev up then drop down then back up normally. I only drive in M mode.
Any ideas?
Recently did an oil change, spark plugs and O2 sensors.
Thanks in advance
For the past few months, my 2012 C63 has been more delicate than usual.
It has a Eurocharged tune and x pipe with 153,400kms and the tach is sputtering under acceleration. Stomp on it at it'll start to rev up then drop down then back up normally. I only drive in M mode.
Any ideas?
Recently did an oil change, spark plugs and O2 sensors.
Thanks in advance
MBWorld Fanatic!
Joined: Aug 2011
Posts: 5,351
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From: Kitchener, ON
2010 C63 AMG
It hesitates under load which could be a number of potential issues.
Plug in a scanner and share your STFT/LTFT data for a starting point.
Otherwise we're just throwing darts in the dark...
Plug in a scanner and share your STFT/LTFT data for a starting point.
Otherwise we're just throwing darts in the dark...
Thread Starter
Junior Member
Joined: Aug 2015
Posts: 30
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2012 C63 Coupe
Ok thanks. Will do.
When I did the last oil change, spark plugs and o2 sensors, the scanner didn't produce anything and the car would not replicate the issue at that time.
Please stay tuned.
When I did the last oil change, spark plugs and o2 sensors, the scanner didn't produce anything and the car would not replicate the issue at that time.
Please stay tuned.
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MBWorld Fanatic!
Joined: Sep 2016
Posts: 1,175
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From: NY
2010 C63 2019 GLA45
So here's something that I saw years ago in my Alfa Romeo:
You drive around, you floor the accelerator, the rpm climb then there's a sputter and the tach drops dead incredibly quick, then picks up again.
If this is similar, look into grounding.
At the time, I noticed that the top portion of the manifold did not have a clear grounding path, and several of the sensors were positioned there.
Grounding problems don't throw codes either.
I looked at the M156 and the manifold grounds to the rest of the engine through the aluminum bolts, that fasten it to the heads
I wonder if the heads ground to the rest of the engine .......... Through the head bolts.
Anyway, as the mileage climbs, grounding issues can appear. Try to run a simple ground strap from the manifold to a ground point on the chassis.
You drive around, you floor the accelerator, the rpm climb then there's a sputter and the tach drops dead incredibly quick, then picks up again.
If this is similar, look into grounding.
At the time, I noticed that the top portion of the manifold did not have a clear grounding path, and several of the sensors were positioned there.
Grounding problems don't throw codes either.
I looked at the M156 and the manifold grounds to the rest of the engine through the aluminum bolts, that fasten it to the heads
I wonder if the heads ground to the rest of the engine .......... Through the head bolts.
Anyway, as the mileage climbs, grounding issues can appear. Try to run a simple ground strap from the manifold to a ground point on the chassis.
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2012 E550 Cabrio
Fuel issue. Seen it before in my buddy's E63S.
Now, are you sure no codes, or are you just referring to no CELs? Cos he never had anything that indicated a code but when we ran my bluedriver we pulled up code P0087 re fuel rail/system pressure. I think it ended up being a glazed fuel sock or something like that.
Now, are you sure no codes, or are you just referring to no CELs? Cos he never had anything that indicated a code but when we ran my bluedriver we pulled up code P0087 re fuel rail/system pressure. I think it ended up being a glazed fuel sock or something like that.
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2012 C63 Coupe
Thanks everyone.
Test Report from the scan shows P0013 - "Continuous camshaft adjustment (RIGHT): Incorrect position of the exhaust camshaft (P0013)"
I don't know what to make of this.
Test Report from the scan shows P0013 - "Continuous camshaft adjustment (RIGHT): Incorrect position of the exhaust camshaft (P0013)"
I don't know what to make of this.
MBWorld Fanatic!
Joined: Aug 2011
Posts: 5,351
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From: Kitchener, ON
2010 C63 AMG
MBWorld Fanatic!
Joined: Sep 2016
Posts: 1,175
Likes: 130
From: NY
2010 C63 2019 GLA45
If you are going to have a shop do this, your bill will depend on how much they want to mark up the parts and what they want to charge you for the labor.
A shop other than the dealer would need to have a set of M156 cam hold down tools and a tester capable of re initializing the cams. I'm not sure that the snap-on that many shops have could do this.
The adjusters appear to me to be sold in sets. Also i noticed that there is a new part number, there probably was an update to the design.
When these are replaced, I would replace the special washer that retains the assemblies too, if it's not in the set.
A shop other than the dealer would need to have a set of M156 cam hold down tools and a tester capable of re initializing the cams. I'm not sure that the snap-on that many shops have could do this.
The adjusters appear to me to be sold in sets. Also i noticed that there is a new part number, there probably was an update to the design.
When these are replaced, I would replace the special washer that retains the assemblies too, if it's not in the set.
Last edited by Vladds; Nov 30, 2016 at 10:55 AM.
