CL-Class (W215) 2000-2006: CL 500, CL 600

No Boost!

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Old Nov 26, 2012 | 06:10 PM
  #1  
saintz's Avatar
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From: Charleston, SC
GL450
No Boost!

After replacing a coil pack I no longer have boost.

I took everything apart and put it back together, still nothing. I couldn't find any pinched hoses. Only thing was a pinched wire from the ignition pack, which is no longer pinched. Is it possible that cable is now broken? Any way to find why the car won't boost, like if a sensor is throwing an error, or is it just guess work?
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Old Nov 27, 2012 | 01:13 AM
  #2  
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I would check out if some KPA sensors have haven't been left unconnected or bleeding the I/C system would be ideal. Get a star scan in MEFI to see for any codes
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Old Nov 27, 2012 | 08:02 AM
  #3  
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From: Charleston, SC
GL450
I bled the IC system. It took a little fluid but quickly topped off. There was a froth in the IC, but it seemed to dissipate.

This is also not just slow, as in a bad IC pump, but no turbo at all. The schrader valves did weep, so the pump appears to be running.
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Old Jan 23, 2015 | 11:43 PM
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From: Vegas, Baby!
05 CL600
Did you ever figure out what was wrong?
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