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E46 M3 (2001-2006)

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  #1  
Old 04-09-2014, 12:53 PM
vpunitas vpunitas is offline
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Location: Northern Virginia
 
Join Date: Apr 2014
Posts: 2
Mein Auto: 2002 BMW M3 Convertable
MAF removal for cleaning, 2002 M3 *Solved*

I've pulled the sensor, but can't get the air box disconnected to clean the inside. Am I missing something? Shouldn't it just pull free? Photo attached. I don't want to pull too hard if there is a trick to disconnecting it. The clamp is loose, the clips are free, and the airbox is loose. Just can't get it free of the intake hosing..
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Last edited by vpunitas; 04-19-2014 at 11:01 AM.
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  #2  
Old 04-19-2014, 11:07 AM
vpunitas vpunitas is offline
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Location: Northern Virginia
 
Join Date: Apr 2014
Posts: 2
Mein Auto: 2002 BMW M3 Convertable
Some "light" prying with a straight screwdriver.. loosened up the hose. Came off after that.

1. Cleaned MAF with CRC MAF Sensor Cleaner
2. Cleaned MAF screeen and air box
3. Replaced Air Filter with K&N 33-2231.
4. Pulled TPS near oil filter.
5. Sprayed CRC QD Electronic Cleaner on all connections.
6. Reconnected all.
7. Topped off oil.
8. Successful Test Drive.

No warning lights. No more "limp" mode. Seems to be running smooth. I'm skeptical at this point, but I can't complain. All the warning lights are gone and it's running perfectly. Maybe sometimes it just needs a good cleaning...
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