Misfire.... again
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Super Member
Joined: Jan 2008
Posts: 863
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From: Chicago
Suzuki Burgman Executive
Misfire.... again
I brought the car car in for a scheduled service and misfire. Both were addressed, 2 weeks later the cars is misfiring. Check engine light went on but now has disappeared. SA said they're going to have replicate, I guess hes not aware that all codes are stored.
The first time around they said it was a software issues, make me wonder what is this time...
The first time around they said it was a software issues, make me wonder what is this time...
MBWorld Fanatic!
Joined: Oct 2012
Posts: 3,704
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From: Denham Springs,LA
'12 C63 Black Series, '12 ML350 BlueTech
A lot of things can happen. Bad gas, spark plugs, fuel pump/injectors, low compression. How many cylinders are misfiring?
Any specific codes you are aware of?
Any specific codes you are aware of?
MBWorld Fanatic!
Joined: Sep 2015
Posts: 2,137
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From: Sydney
AMG GLC63 E-Performance Edition 1
I brought the car car in for a scheduled service and misfire. Both were addressed, 2 weeks later the cars is misfiring. Check engine light went on but now has disappeared. SA said they're going to have replicate, I guess hes not aware that all codes are stored.
The first time around they said it was a software issues, make me wonder what is this time...
The first time around they said it was a software issues, make me wonder what is this time...
Member
Joined: Sep 2007
Posts: 194
Likes: 2
From: East Coast
15 AMG C63S ED1
I brought the car car in for a scheduled service and misfire. Both were addressed, 2 weeks later the cars is misfiring. Check engine light went on but now has disappeared. SA said they're going to have replicate, I guess hes not aware that all codes are stored.
The first time around they said it was a software issues, make me wonder what is this time...
The first time around they said it was a software issues, make me wonder what is this time...
Super Member
Joined: Jun 2015
Posts: 643
Likes: 92
From: Houston, TX
'15 C63S
Running a winter blend in summer temperatures can definitely cause a misfire. It won't be anything catastrophic, but it very much can cause a slight misfire, especially with conditions like a lot of the country was experiencing these past few weeks. Hell, it was 84 degrees here in Houston on Christmas Day. It's usually 30+ degrees colder than that. A butane-rich winter blend isn't meant for those type of temperatures.
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Junior Member
Joined: Aug 2007
Posts: 47
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From: San Francisco, CA
'15 Boxster, '10 S4
Running a winter blend in summer temperatures can definitely cause a misfire. It won't be anything catastrophic, but it very much can cause a slight misfire, especially with conditions like a lot of the country was experiencing these past few weeks. Hell, it was 84 degrees here in Houston on Christmas Day. It's usually 30+ degrees colder than that. A butane-rich winter blend isn't meant for those type of temperatures.
Coil packs are usually the problem. They have a very high failure rate. Is it happening on the same cylinder?
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Super Member
Joined: Jun 2015
Posts: 643
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From: Houston, TX
'15 C63S
I call bull****. It's never cold in coastal California and we run a winter blend with more butane. If it's warm the gasoline may evaporate faster. The car should be tuned to not misfire on junky gas.
Coil packs are usually the problem. They have a very high failure rate. Is it happening on the same cylinder?
Coil packs are usually the problem. They have a very high failure rate. Is it happening on the same cylinder?
If I remember correctly, there are something like 20+ different blends of gasoline used all around the country. There aren't just two blends (winter and summer). What you use in California is different than what someone at the same time would be using in New York or in Texas or in Montana.
A bad coil pack could very well be the problem, but you can't discount the explanation of having the wrong blend of fuel.
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Joined: Jul 2015
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From: SoCal
2016 C63S Sedan
I call bull****. It's never cold in coastal California and we run a winter blend with more butane. If it's warm the gasoline may evaporate faster. The car should be tuned to not misfire on junky gas.
Coil packs are usually the problem. They have a very high failure rate. Is it happening on the same cylinder?
Coil packs are usually the problem. They have a very high failure rate. Is it happening on the same cylinder?
+1
Newbie
Joined: Jul 2012
Posts: 2
Likes: 0
2011 CL63
my 2011 CL63 has been in the shop 6 or 7 times (hard to keep count now) due to misfires. They have swapped the plugs and coil packs, but not all coil packs, finally they are able to duplicate the faults on their own. It happens when you smack the accelerator hard, the car barley runs when you stop. Turn it off and re start it runs better but not well, just good enough to get it to the shop. They keep tryng to swap plugs from on cylinder to the other but faults still occur. It does not seem to be the same cylinder every time. It is in the shop as I speak and they are still scratching their heads. I read potential causes could be CATS? Hope they resolve it this time. Love to hear from some one with the same issues?
Thread Starter
Super Member
Joined: Jan 2008
Posts: 863
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From: Chicago
Suzuki Burgman Executive
WTF!!
So I brought my car in to have my wheels refinished, plastic trim on the rocker panel, and a misfire. This is the 5th time I brought my car in for this. On the 4th attempt I was told software will remedy the problem. The car is now in on a 5th attempt, and I notice a misfire but no check engine lights and no codes. I believe that there is a misfire and that the latest software has a tolerance built in. Where it wont trigger a code. The dealer notices the vibration reports it to mb and mb comes back with documentation saying this is normal operation. I will have a copy of the document tomorrow.
Member
Joined: Nov 2010
Posts: 138
Likes: 7
From: Chi-town
Diamond W205 C63s Ed1
So I brought my car in to have my wheels refinished, plastic trim on the rocker panel, and a misfire. This is the 5th time I brought my car in for this. On the 4th attempt I was told software will remedy the problem. The car is now in on a 5th attempt, and I notice a misfire but no check engine lights and no codes. I believe that there is a misfire and that the latest software has a tolerance built in. Where it wont trigger a code. The dealer notices the vibration reports it to mb and mb comes back with documentation saying this is normal operation. I will have a copy of the document tomorrow.
