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X5 E53 (1999 - 2006)
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  #1  
Old 04-29-2015, 07:20 PM
slmullen67 slmullen67 is offline
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Location: pittsburg, ca
 
Join Date: May 2013
Posts: 6
Mein Auto: 2006 x5
Codes P0441/P1092 & P1093 help me!!

i have a 06 x5 3.0i 158k i have replaced just about everything and still have these codes, please help me.

i have replaced all 4 o2 sensors, the charcoal canister, the 2nd map sensors, control valves, disa valve, all the oil lines pcv valves and now the fuel pump and now im getting "trans fail safe prog everytime i start my car then i drive it for 2 to 3 min and it goes off. but it never came on before i just had the fuel pump replaced. does anyone have any ideas? oh i replaced the fuel cap and the spark plugs and coils, valve cover gasket, fuel filter have all been replaced recently too.

any suggestions will be greatly appreciated
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  #2  
Old 12-02-2015, 06:11 AM
kevinsmith1963 kevinsmith1963 is offline
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Location: Minnesota
 
Join Date: Oct 2015
Posts: 3
Mein Auto: 2006 X5 3.0i
Firstly, I assume the codes have been verified at a BMW dealership? From my experience that is the only way to get a true diagnosis; codes read by a generally available scanner and/or at Auto Zone etc. will not give a true picture of the problem and can send you off on a wild goose chase. I can offer a suggestion concerning the P1092 code. If you had it read at AutoZone (like I did) the first place to look is the O2 sensor for bank 2. For my X5 this was a read herring as the 'running lean' indicator is just a symptom not a root cause. Cutting a long story short, the most common underlying root cause of this code is a vacuum leak and in my case the leak was found in the oddest of places, i.e. the "O" ring was split where the dip-stick tube enters the crank case. $300 later and my SES light remains off but at least I did't have to worry about replacing the O2 sensors.

Hope this helps.
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