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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 08-16-2014, 08:24 AM
Rough Neck Rough Neck is offline
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Location: York Pa
 
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Mein Auto: X3
Angry rough start up

I have a 06 and 04 X3. My 06 have a rough start up most ever time Cold or Hot. I have switched out many parts from my 04 and nothing has changed. When I reset the engine codes that read bank one and two are to lean at the same time it will stay off for a very long time and engine still starts and runs bad for only the first say 5 to 15 seconds. I have replaced fuel regulator and check pressure. Check for air leaks, MAP, replaced and recheck air intake boot. Many other parts that I cant recall the names. Had a friend check 02 sensors with his OBD2 tester all-good.
After the 10 second car runs fine.
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  #2  
Old 08-16-2014, 10:38 AM
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mlukas161 mlukas161 is offline
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Location: WNY
 
Join Date: Oct 2008
Posts: 936
Mein Auto: 03 330i, 04 X3
Have you cleaned the idle control valve? It's below the DISA. Looks like a silver cylinder. It needs to be cleaned periodically due to carbon build up.

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Old 08-16-2014, 12:51 PM
Rough Neck Rough Neck is offline
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Location: York Pa
 
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Mein Auto: X3
Quote:
Originally Posted by mlukas161 View Post
Have you cleaned the idle control valve? It's below the DISA. Looks like a silver cylinder. It needs to be cleaned periodically due to carbon build up.

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Yes I have cleaned both ideal valves and swapped them. No change

Thanks for your reply
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  #4  
Old 08-17-2014, 09:14 PM
iamjamen iamjamen is offline
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Location: America's High Five (MI)
 
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Mein Auto: E36 M3; E83 3.0i
Did you check the oil return line that runs from the oil separator to the dipstick? It is made out of rubber which can deteriorate from prolonged exposure to oil. If it loses strength it can collapse and cause the engine to run poorly.
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  #5  
Old 08-19-2014, 07:45 PM
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X3emist X3emist is offline
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Mein Auto: 06 X3 Sport
Smoke Test

have a smoke test done, you probably have vacuum leak(s).
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2006 X3 Silver Grey/Black Lthr/Alum Trim/Sport Prem Pkg/Xenons/Servotronic/Prem Sound/Satellite Radio/Heated Seats/Carbon Fiber Pillars/Blue Tooth/Aux In/Cargo Net/Aluminum Pedals/V1 Hardwired
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  #6  
Old 08-21-2014, 02:27 PM
Rough Neck Rough Neck is offline
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Location: York Pa
 
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Quote:
Originally Posted by iamjamen View Post
Did you check the oil return line that runs from the oil separator to the dipstick? It is made out of rubber which can deteriorate from prolonged exposure to oil. If it loses strength it can collapse and cause the engine to run poorly.
I visual checked and seen nothing broken. I was not aware of this when I cleaned the idle control valve. or I would of tore into this. Would this make the engine run bad all the time or just the first 10 seconds that Iím experiencing?
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