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M275 V12 Bi-Turbo Platform Technical discussion relating to models sharing the M275 V12 Bi-Turbo (V12 TT). Including SL600, SL65 AMG, CL600, CL65 AMG, S600, S65 AMG.
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Need help with misfire

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Old Aug 25, 2013 | 06:30 PM
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Anas14112
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S 600
Need help with misfire
Hello ,

I got misfire codes .it shown problem from both sides .
I changed pairs coils pack but still the problem exist .
I have changed also coil ECU but still have the same issue .

When I drive with low rpm the car runs smoothly ,but when I try to go higher rpm I got one side misfire . I don't know what to do please help ....


The car is w221 S600
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Old Aug 25, 2013 | 06:46 PM
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Welwynnick
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From: Welwyn, Herts, UK
2006 S600
Is it all the cylinders on one side?
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Old Aug 25, 2013 | 06:50 PM
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S 600
Yes , but some times it shown 2 cylinders from the passenger side ..

But the number of cylinders changing randomly
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Old Aug 25, 2013 | 06:58 PM
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cl600
could very well be the ignition module.
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Old Aug 25, 2013 | 06:59 PM
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S 600
I have changed spark plugs also
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