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r_unda 03-29-2012 09:48 AM

Oil light above 2000 RPM
The 2007 CRD I just bought has the oil pressure light that goes on and off while driving. Usually it turns on at the highway when revving over 2000 rpm, it stays on while above this RPM and then turns off when I slow down. I didnít notice this while test driving it but I might have been too exited to notice it. oh well!

Took it to the dealer and they are waiting for a new PCV and oil cap. I hope this will fix it. Is there something else that can create this light to come on? What about a sensor?


r_unda 04-14-2012 01:46 PM

Re: Oil light above 2000 RPM
From another forum I posted at


Originally Posted by Bdaileron (Post 13383757)
Not sure if your problem is the same as mine WAS, but here goes; the recent oil change is a hint. To remove the oil filter element, you unscrew and remove the composite filter cap, at the front, right side of the engine, the element is loosely pressed onto a center mandrel, which extends about an inch below the element. This potrusion is tapered, with an O-ring boss at the end. When I got my '08 CRD, the mandrel was broken. The tapered extension and O-ring boss wasn't there. My oil pressure light came on above 2,000 rpm, as does yours. A new oil filter cap assy fixed it. CAUTION: that light indicates low oil pressure. It's not lying to ya!

BINGO!! Can't believe the dealer did not checked this!! You would think they would check the basic things like filter the filter, right oil, etc. So disappointed!

I was about to do my oil change and this is what I found!

This is the new oil filter housing cap, part number 5175570AA. This fixed the light issue. No more oil pressure light coming on!

Dusan 10-02-2016 01:41 PM

Re: Oil light above 2000 RPM
It is the second time I broke this thing. I'm being extra cautious, lubricating the o-rings, but still the thin plastic broke. Anybody else have this problem?

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