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Hard Acceleration...Ck Engine...Running Rough

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Old Feb 8, 2015 | 06:46 AM
  #1  
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2008 CLK63 Black Series; 1978 Toyota Land Cruiser; 2015 BMW R1200GSA; 2003 Porsche 996 Turbo (gone)
Hard Acceleration...Ck Engine...Running Rough

I was gently merging into freeway traffic today when my check engine light came on...car started running rough. Can't get the car into the shop for about a week, but my first guess would be MAF failure. Any similar experience or educated guesses?
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Old Feb 8, 2015 | 09:20 AM
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CLK63 BS
Any way you can pull the code? there are a couple that seem to give that response, but the issue comes from a different place.

Codes p0141 or p0191 seem to common, the C63 forum has a lot of answers to these, also is the car stock?
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Old Feb 8, 2015 | 10:40 AM
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CLK63 AMG Black Series
Did you start and stop the engine? Did everything go back to normal?
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Old Feb 8, 2015 | 11:06 AM
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2008 CLK63 Black Series; 1978 Toyota Land Cruiser; 2015 BMW R1200GSA; 2003 Porsche 996 Turbo (gone)
Originally Posted by qjumpr
Any way you can pull the code? there are a couple that seem to give that response, but the issue comes from a different place.

Codes p0141 or p0191 seem to common, the C63 forum has a lot of answers to these, also is the car stock?
Not cable, software, or reader to pull code...will need to wait for shop. Just trying to get some sense of what spectrum of issues may be...coil pack comes to mind also.
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Old Feb 8, 2015 | 11:09 AM
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2008 CLK63 Black Series; 1978 Toyota Land Cruiser; 2015 BMW R1200GSA; 2003 Porsche 996 Turbo (gone)
Originally Posted by MOFLO
Did you start and stop the engine? Did everything go back to normal?
Did...even letting her sit overnight, hoping she'd heal herself...no cigar
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Old Feb 9, 2015 | 08:07 AM
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From: Springfield, VA
2008 CLK63 Black Series; 1978 Toyota Land Cruiser; 2015 BMW R1200GSA; 2003 Porsche 996 Turbo (gone)
At AMG Performance Center now...looks like a cracked connector on the #7 coil pack...small change repair bill ($280) covered by my extended warranty. Only 8 similar repairs to go and I'll break even on what I paid for the warranty

Last edited by stewarjm1; Feb 10, 2015 at 06:25 PM.
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Old Feb 9, 2015 | 01:54 PM
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Sounded something related to ignition in my mind when you first described it. Glad it was a 'quick fix'.
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Old Feb 9, 2015 | 04:12 PM
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2008 CLK63 Black Series; 1978 Toyota Land Cruiser; 2015 BMW R1200GSA; 2003 Porsche 996 Turbo (gone)
Originally Posted by MOFLO
Sounded something related to ignition in my mind when you first described it. Glad it was a 'quick fix'.
My guess...likely cracked by my indie when they replaced the plugs 2K miles ago. That said, this car has been bullet proof...not one issue in 18 months of ownership
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Old Feb 9, 2015 | 05:36 PM
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CLK63 BS
Originally Posted by stewarjm1
At AMG Performance Center now...looks like a cracked connector on the #7 coil pack...small change repair bill ($280) covered by my extened warranty. Only 8 similar repairs to go and I'll break even on what I paid for the warranty
Good to hear. Glad it worked out.
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