SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Miss-fire, help.

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Old 10-16-2014, 03:03 PM
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SL 63 W/B AMG , S600,C220
Miss-fire, help.

My SL65 has developed a miss fire, you can feel sometimes it's on 11 and
sometimes it gets rough like 10 firing. I had new plugs a couple of months
ago, and I checked with the tuning company and they said it might be
coil packs. Also I haven't driven it much, yet it was fine this morning, miss
firing tonight. Any body got any ideas what it might be.
Old 10-16-2014, 03:05 PM
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Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Coil packs, is most likely gonna be the culprit here...
Old 10-16-2014, 03:33 PM
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06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
Whenever anyone tunes a 600/65, these ignition coils tend to go out right after the tune, mine got bad to the point where i was driving and when I hit around 90 mph the car went really rough.

Turned it off and on after 2 mins and I was good again but when I ran my OBD II scanner it should 10/12 cylinders misfired
Old 10-17-2014, 10:47 AM
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SL 63 W/B AMG , S600,C220
Thanks guys, coil pack it is then, why doesn't it send a warning on the
dash, just about everything else comes up.
Anyone got an idea on cost.

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