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#1
12-30-2014, 12:31 AM
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Strong burned oil smell from driver's side
Any ideas on this one? Even when my oil filter mount gasket was leaking it never smelled bad, it just leaked onto the ground. This is terrible - a real burned oil smell, but from the driver's side, not the passenger's. I double-checked the valve cover gasket which was replaced earlier this year - this is a 3.0 - and no evidence of leaks around it, all fasteners snug.
Perhaps a CCV hose has let loose? Any ideas are appreciated! 
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#3
12-30-2014, 01:48 AM
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When did you do your valve cover gaskets?only way to get that smell is if there's oil on the exhaust manifold..when hot ,it will burn and make its way inside through the vents.
Clean the motor with degreaser and then look for oil spills.Thats what I'd do at least...
__________________
2006 X5 4.8is LeMans Blue / creambeige interior Prod.date: 2006-06-21
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#4
12-30-2014, 06:13 PM
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Quote:
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 X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interiorDallas
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#5
12-30-2014, 08:36 PM
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Quote:
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD
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#6
01-03-2015, 01:27 AM
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Yes, it's very side-dependent, with almost no smell on the pass. side. I went all around the front, back, and pass. side of the head and felt no fresh oil, so I'd be surprised if it's the VC gasket. No CEL either.
I suspect my mechanic will put the dye in the oil to trace the leak.
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#7
01-24-2015, 05:20 PM
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Well, good news/bad news story: Replaced the VC gasket and the burned oil smell is GONE. Now, however the mileage has dropped from about 18 to 16 MPG and the MPG gauge (vacuum gauge, I'm assuming) is acting strange. It's spending a lot of time in the high vacuum range and on coasting it will go to max MPG but occasionally move from the pegged position to a lower reading. I suspected a vacuum leak somewhere, especially the rubber line that goes behind the VC, but don't hear anything or feel any cuts. Also, NO SES light.
Any ideas out there?
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