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#41
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E53 X5 3.0d SUV prod.date 11/2004 eng.variant M57N Europe Right hand drive N |
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#42
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Just paying it forward..
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#43
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The red shaded section is a worm-clamp connection for the exhaust gas connection on the EGR. This needs to be a good fit - no play, or exhaust gases and soot!) will escape here and make a mess (or worse). If this joint has play, it may be that the connection is no aligned correctly. There is also a stainless mesh "gasket" in this joint. The blue shaded section is the boost inlet connection (from the inter-cooler output). There is a wire clip holding this in place and I often see this installed incorrectly (even do this myself once!). There is a gasket in this joint too - a very soft rubber (silicon) double-lipped seal that need to be in good condition or you will get a boost leak here. This joint may have a small amount of play in it but normally very little. If it's loose, the clip may not be installed correctly (and you could have a boost leak - often indicated by an oil-film on EGR valve). Older (pre-LCI) cars have a large worm-clamp at the blue location (not the newer wire clip) but LCI cars should NOT have a large worm-clamp here. Damage to the large black boost hose (i.e. a hole) will also be bad (a boost leak!).
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#44
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Having a similar issue, almost no boost under 2000rpm and a growing whisle sound. Then it kicks at 2 / 2.5k and pulls fine with no smoke (egr vacuum hose blocked, otherwise little smoke with egr working). Doing a supercharger sound at high load tho..
Changed most of the vacuum hoses around the turbo and the pressure converter (next to the turbo, not the egr one under the intake manifold). Next will check the exhaust manifold for cracks with an endoscope, but not sure it's that as i have no smoke under the hood.. With an obd scanner i get around 21psi when the turbo really kicks in, no idea if it's a good value. Last edited by grounch; 05-09-2022 at 04:52 PM. |
#45
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E53 X5 3.0d SUV prod.date 11/2004 eng.variant M57N Europe Right hand drive N Last edited by omodos; 05-10-2022 at 01:10 PM. |
#46
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E53 X5 3.0d SUV prod.date 11/2004 eng.variant M57N Europe Right hand drive N |
#47
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What I think you are calling the second clip is a factory fitted clamp on the rubber hose connection to the EGR connection flange. This factory fitted clip cannot (or should not) be removed or loosened. A new charge pipe comes with this clamp already fitted (at least three of them in fact...) Can't zoom in on your images (attachment is too small) - can't see any damage but as long as there's no hole, I'm sure it's fine.
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#48
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E53 X5 3.0d SUV prod.date 11/2004 eng.variant M57N Europe Right hand drive N |
#49
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I think I can see what you are referring to - looks like a small cut in the hose from the top cover or something.
If there is a tear, that would affect boost, although not much if it's only that small a tear. Once again, without actually measuring the boost levels with the appropiate tools (meaning software or auto-scanner), it's all guess-work.
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#50
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Had a look through my photos and found a couple of images of my engine that show a normal charge pipe to EGR connection (first image) and a leaking charge pipe to EGR connection (second image): -
(Click on each image for larger version) Good charge pipe connection... Poor charge pipe connection... In the lower image, the charge pipe gasket had been pinched and the charge pipe was not seated correctly. The fault was evident from the oil blow-by on the outside of the EGR body. The charge pipe seals are pretty thin, soft and easily damaged... HTH...
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
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