S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

This looks bad.....

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Old Jun 1, 2019 | 10:17 PM
  #1  
ACRB's Avatar
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From: Los Angeles
2007 Mercedes 550S 2006 Porsche 997 Carrera S
This looks bad.....


Is it something catastrophic? Came on this afternoon. Once the ignition was turned off, it would not turn back on. Then, once the car sat for 20 minutes, everything seemed fine. Thank you in advance for any insight into this issue. I apologize for such a large upload!
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Old Jun 2, 2019 | 09:53 AM
  #2  
Shadly1's Avatar
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2007 S550
LOL. It might as well say "All is lost." I'm glad it came back up for you. At least you have a stored code now. Get that thing read ASAP so you know what you're in for should this issue pop up again.

My guess is that the shift mechanism didn't return to park after the command as sent.
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Old Jun 17, 2019 | 09:27 PM
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Mercedes S 550
Yes I had the same problem about 3 months ago it was the ISM
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Old Jun 24, 2019 | 05:09 PM
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'71 Pinto
For definitive diagnose have someone pull fault codes. If it turns out to be ISM current part # is 0002701852 see attachment for replacement.

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