C63 AMG (W204) 2008 - 2015
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Ball shaft at front of intake question

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Old Sep 22, 2016 | 02:54 PM
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From: Jeffreys Bay,South Africa
2012 C63 AMG Coupe
Ball shaft at front of intake question

I would do a search but I don't know what it is and what it does but I have a shaft with a ball clip that clips onto a ball but the plastic part is worn and comes loose. I just want to know what it is and how it works and what it effects if not hooked in.



Position of ball arm thingy



A closer shot.



My assistant mechanic was not much help either. Kept saying it was a fuse or something
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Old Sep 22, 2016 | 02:58 PM
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Maybe a hairball issues?
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Old Sep 22, 2016 | 03:12 PM
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From: Jeffreys Bay,South Africa
2012 C63 AMG Coupe
Originally Posted by roadkillrob
Maybe a hairball issues?
Maybe
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Old Sep 22, 2016 | 03:52 PM
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
That thing is a vacuum operated valve inside the manifold that helps throttle response at different RPM's I believe, seems to be called a vacuum cell. Hopefully it is the little arm that is the issue, not the part on the intake as that doesn't appear to be separate.

This diagram may help http://mbfans.me/EN/mercedes/c/1/a/M...anifold/sg/030
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Old Sep 22, 2016 | 04:36 PM
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2010 C63 AMG
It switches the intake runners from long to short
which helps maximize engine torque/power throughout the rpm range
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Old Sep 23, 2016 | 08:15 AM
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From: Jeffreys Bay,South Africa
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Originally Posted by deadlyvt
It switches the intake runners from long to short
which helps maximize engine torque/power throughout the rpm range
Ok so it has a bit of an effect on performance and fuel consumption then.
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Old Sep 23, 2016 | 08:18 AM
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From: Jeffreys Bay,South Africa
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Originally Posted by roadkillrob
That thing is a vacuum operated valve inside the manifold that helps throttle response at different RPM's I believe, seems to be called a vacuum cell. Hopefully it is the little arm that is the issue, not the part on the intake as that doesn't appear to be separate.

This diagram may help http://mbfans.me/EN/mercedes/c/1/a/M...anifold/sg/030
Thanks for this. It will come in handy with part numbers.
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Old Sep 25, 2016 | 01:27 PM
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From: Jeffreys Bay,South Africa
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Update: Went for a drive yesterday and CEL came on. Checked the faults on my Torque app:



Cleared the fault codes and CEL stayed on then re tested for faults and same codes popped up. Went home, put a cable tie on the shaft to secure it to the ball, reset the faults and CEL went off. Retested afterwards and no fault codes. Went for a drive today and retested again because CEL does not always come on if there's faults I have noticed in the past with other cars as well but no faults found.
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