Anyone replace their own air filter?

tjct · 02-06-2011, 07:59 AM

2007 328xi coupe non-turbo
Trying to replace the engine air filter myself, the bentley manual explains how ,but my question is do i have to disconnect the electrical connector to the mass airflow sensor to lift out the air box? Sure looks like I have to but does this connector just simply pull apart or is there a trick to it? Also ,will disconnecting it cause a fault code that must be cleared when finished?
I`m thinking of changing the filter at 30K miles, the dashboard maintenance indicators don`t list the engine air filter as a maintenance item, will it suddenly pop-up at 45K? Thanks for everyones help.

sy2767 · 02-06-2011, 09:52 AM

Yes disconnect the connector but be careful doing so, there is a small tab you must pry-push on to do so. If you don't start your car while its unplugged you shouldn't get any fault codes. Have fun!!

Chriztofor · 02-07-2011, 02:38 PM

Here are the instructions which also shows you how to delete the charcoal filter http://www.e90post.com/forums/showthread.php?t=21590

02-06-2011, 07:59 AM	#1
tjct New Member 10 Rep 16 Posts Drives: 2007 328xi coupe Join Date: Feb 2011 Location: New Haven,Ct. iTrader: (0)	Anyone replace their own air filter? 2007 328xi coupe non-turbo Trying to replace the engine air filter myself, the bentley manual explains how ,but my question is do i have to disconnect the electrical connector to the mass airflow sensor to lift out the air box? Sure looks like I have to but does this connector just simply pull apart or is there a trick to it? Also ,will disconnecting it cause a fault code that must be cleared when finished? I`m thinking of changing the filter at 30K miles, the dashboard maintenance indicators don`t list the engine air filter as a maintenance item, will it suddenly pop-up at 45K? Thanks for everyones help.
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02-06-2011, 09:52 AM	#2
sy2767 Major 145 Rep 1,132 Posts Drives: 2013 x5 Join Date: May 2010 Location: manitoba iTrader: (1)	Yes disconnect the connector but be careful doing so, there is a small tab you must pry-push on to do so. If you don't start your car while its unplugged you shouldn't get any fault codes. Have fun!!
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02-07-2011, 02:38 PM	#3
Chriztofor Colonel 103 Rep 2,783 Posts Drives: '06 325i and '13 X5 Join Date: Feb 2010 Location: Chicago Burbs iTrader: (1)	Here are the instructions which also shows you how to delete the charcoal filter http://www.e90post.com/forums/showthread.php?t=21590 __________________ If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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