What is this plug under hood!?
Thread Starter
Newbie
Joined: Mar 2015
Posts: 8
Likes: 0
s500
What is this plug under hood!?
I went under hood to check the check valves and saw that the blue valve wasn't even connected to the hose smh. After connecting it I noticed a plug chilling in between the valve hoses (see picture). I don't see aaaanywhere it could go. Any idea??
Junior Member
Joined: Jan 2015
Posts: 70
Likes: 2
From: Qatar
2002 S320L
sorry but I can't see anything blue, that plug may be for pressure sensor. Do you have check engine light on?
Your vacuum hoses are looking old, I bought around 2 meter from dealer and replaced them recently, it was simple and easy.
Your vacuum hoses are looking old, I bought around 2 meter from dealer and replaced them recently, it was simple and easy.
Last edited by engindin; Apr 6, 2016 at 11:32 AM.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,474
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
I just took a quick look at my 2003 S430 - If you look down and to the right on the photo, there is a connector just under the small hose. The only other connectors I saw were for the closest fuel injector, and (if the connector has a very long harness attached) the AC compressor down at the bottom.
