W212 AMG Discuss the W212 AMG's such as the E63

Car running rough with some loss of "pep"

Old Jun 23, 2015 | 12:36 AM
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Car running rough with some loss of "pep"

Figured I'd toss this up here for any input

14 e63s with Dp and tune

Got a misfire for cyl 5 after it was really running like shiat. Had all plugs changed. Now car feels sluggish and feels like it breaks up up top. I can feel the slightest vibration when giving light throttle under load. No cels.
Thoughts ?
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Old Jun 23, 2015 | 01:04 AM
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Sounds like a bad tune or something bad is wrong. I'd do a leakdown test.
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Old Jun 23, 2015 | 10:13 AM
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2016 AMG S65, AMG GL63, 2012 AMG E63 With AMS Alpha 9 Package, Renntech 200 Catted Downpipes.
What tune do you have? If it's not a ECU tune, I would try to de tune it and have your dealer check it out and fix the problem stat. Good luck.
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Old Jun 24, 2015 | 12:23 AM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
This has always been my fear of a tune...

Wish the op luck and speedy recovery
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Old Jun 24, 2015 | 04:04 PM
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CLS55 2006, CLS 63S 2015
From what u are stating this is an issue people have had when tuning these cars when they first came out...i had assumed it was resolved as we have not heard about it in a while.

some had the spark plug melt/ crack and a piece fall into the engine. Again nothing has been mentioned on this topic of a while. Ali had it happen to him on the cls63 form along with a few others

If you find out would appreciate let us know so we can avoid any mishaps
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Old Jun 25, 2015 | 06:45 PM
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e63s edition 1
Double check the plugs/
Pull them out one for one and take a look at them.
Make sure they are all the same color / burnt evenly (you can actually smell them as well)
Yea - give them the old sniffy test.

When you replaced them you should have cone one point cooler, this will stop if from melting as well.

I heard the 2015's do require a cooler plug but not sure about the 2014's.

Let us know how it goes,
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Old Jun 27, 2015 | 10:10 PM
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I don't know what the original plug looked like when the dealer changed it.
Tuner recommends oem plugs.
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Old Jun 28, 2015 | 12:08 AM
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I switched plugs to a set one heat range colder than stock - when adding a decent amount of power (and tons of torque) to any engine especially a forced induction or nitrous engine spark plug heat range needs to be taken into account.

http://www.ngksparkplugs.com/tech_su...d.asp?mode=nml

That said I've been tuned for almost 10k miles with no issues related to the spark plugs, and 6k of that being in the last three weeks on the Hot Rod Magazine Power Tour where the car went on the dyno for several pulls (601hp/713tq, 605hp/733tq, 591hp/726tq), was auto crossed for an entire day, ran at two drag strips (in two separate hot and humid cities), and had some high speed testing done along side a supercharged G8 GXP
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Old Jun 28, 2015 | 02:08 AM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Originally Posted by TTA850
I switched plugs to a set one heat range colder than stock - when adding a decent amount of power (and tons of torque) to any engine especially a forced induction or nitrous engine spark plug heat range needs to be taken into account.

http://www.ngksparkplugs.com/tech_su...d.asp?mode=nml

That said I've been tuned for almost 10k miles with no issues related to the spark plugs, and 6k of that being in the last three weeks on the Hot Rod Magazine Power Tour where the car went on the dyno for several pulls (601hp/713tq, 605hp/733tq, 591hp/726tq), was auto crossed for an entire day, ran at two drag strips (in two separate hot and humid cities), and had some high speed testing done along side a supercharged G8 GXP
Wow... Is that at the wheels or estimated crank?
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Old Jun 28, 2015 | 09:29 AM
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2015 E63S AMG & 2013 GLK350
Originally Posted by PeterUbers
Wow... Is that at the wheels or estimated crank?
At the wheels, we did several power pulls along with some 2nd thru 5th pulls to really load the motor up and make sure it was running 100%. Here's a couple of videos from the week on the dyno, the autocross, and spanking a hellcat



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