03-24-2024, 01:43 AM | #1 |
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Diagnostic help
Need some help please!
2008 BMW X5 3.0 Rough idle on startup. Bounces all around between 7-12 rpms.. After the vehicle has warmed it settles down. I replaced all coils and spark plugs. Pulled and cleaned Vanos solenoids. Wondering if someone can point me in the right direction. Thank you for your help! |
03-24-2024, 01:08 PM | #3 |
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Drives: 2006 BMW 330i MT
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Garage List 2006 BMW 330i [8.25]
2009 BMW 328i Touri ... [8.00] 2013 BMW X5 35i [7.80] 2011 BMW 528i [8.70] 2006 Mazda3 [5.50] |
Did you jump the solenoids with a little battery to see if they opened/closed?
But yes, pull some codes with a BMW specific tool. |
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03-25-2024, 03:36 AM | #4 |
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I don't think these are related but I have two codes -
KLIMA [IHKA70] | E723: No message (condensation sensor, Ox2D1), receiver integrated automatic heating / air conditioning system, transmitter roof function centre KLIMA [IHKA70] | E729: No message (automatic air recirculation control sensor, Ox2D0), receiver integrated automatic heating / air conditioning system, transmitter It happens on cold start. I have increased the idle speed so it runs at higher idle which somewhat fixes the problem but I know that isn't the right fix. I have shutdown individual injectors one at a time and they all seem to be working properly. I did not test the vanos solenoids with a battery so maybe I'll go back and do that. They looked pretty good but obviously they may not be functioning right. Any other ideas? |
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03-25-2024, 10:54 AM | #5 |
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Drives: 2006 BMW 330i MT
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Garage List 2006 BMW 330i [8.25]
2009 BMW 328i Touri ... [8.00] 2013 BMW X5 35i [7.80] 2011 BMW 528i [8.70] 2006 Mazda3 [5.50] |
Yeah, those codes don't look related.
There are also the VANOS filters/check valves on the sides, maybe pull them and make sure they're not plugged up? And last bit of totally generic advice is check your oil filter cap and make sure the central lattice screen is attached and the filter isn't collapsed. Beyond that, I got nothing... Last edited by StradaRedlands; 03-25-2024 at 11:13 PM.. |
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03-27-2024, 12:41 AM | #6 |
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Thanks for the advice! I'll try your suggestions and update what I figure out.
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StradaRedlands5024.50 |
03-27-2024, 07:15 PM | #8 |
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Drives: 2006 BMW 330i MT
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Garage List 2006 BMW 330i [8.25]
2009 BMW 328i Touri ... [8.00] 2013 BMW X5 35i [7.80] 2011 BMW 528i [8.70] 2006 Mazda3 [5.50] |
According to FCP, they are just on N52 and N54 engines, so a 2011 with an N55 does not have them.
https://www.fcpeuro.com/products/bmw...ve-11367541692 |
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