idle control valve on 300GE. Does this item require servicing/cleaning?

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consur
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I can't find any recommendation for cleaning the idle control valve.  The vehicle has done 160,000 miles   Does anyone do this or know anything about this subject.  I had a 380SL which recently developed problems at 90,000 which were cured by cleaning the ICV.  The idle is not quite what it used to be - could be multiple things but I wondered about the ICV.

Arnie
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Re: idle control valve on 300GE. Does this item require ...

Yes, remove it and clean it internally with some petrol or cab-cleaner; then add a drop of engine oil to the rotating part inside the valve, so that the oil also reaches the bearing. If you hold the valve it in your hand and rotate your hand rapidly back and forth in the same axis as the valve's internal rotor, you should here it move freely from end to end from its inertia.. With the valve cleaned, your idle-speed should be more stable and you engine shouldn't die when the vehicle comes to a stop eg at the lights.

 

consur
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Re: idle control valve on 300GE. Does this item require ...

Thanks Arnie.