Thread: Could a bad coolant temp sensor cause a stumble at idle?
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Old 04-11-2011, 01:10 PM
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abaddsm abaddsm is offline
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Join Date: Mar 2011
Location: Mechanicsburg, PA
Posts: 64
Idle air control valve. Just replaced mine on my 300e after pulling it and testing and seeing that it was malfunctioning. 15 minutes to get it out and a 9 volt battery to test it.
300e is just like this one for the 560
http://cgi.ebay.com/ebaymotors/MERCEDES-420SEL-560SEC-IDLE-AIR-CONTROL-VALVE-86-91-OEM-/180627942762
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'88 300ce black/gray
'88 300e 3.0 5 Speed! gray/gray
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