Cleaning my Throttle body on my 2006 325i E90

netzel2002 · 08-05-2011, 09:54 AM

I'm planning on cleaning the throttle body this weekend and also clean the MAF sensor. You guys think that will help me out? Should I remove the throttle body entirely from the car?
Any ideas will be appreciated.
My car runs good, but it shakes at idle when the engine is cold for like 10 seconds until the RPM drop around 550.

Already replaced spark plugs, air filter, oil Mobil 1 0w40 (every 7500 miles). My mpg: 22.6 (city/hwy).

Thanks !

Glim · 08-05-2011, 10:45 AM

How many miles on the car?

netzel2002 · 08-05-2011, 10:49 AM

105,000

Glim · 08-05-2011, 10:52 AM

Quote:

Originally Posted by netzel2002

105,000

Injector cleaner:

http://www.e90post.com/forums/showthread.php?t=424995

Does the car have any shadow faults? Do you have a BT tool?

netzel2002 · 08-05-2011, 10:58 AM

no shadow faults. I have a BT tool and no codes no nothing.
Already used Chevron Techron Plus but no improvement.

ENINTY · 08-05-2011, 11:36 AM

There is no throttle body on the N52. If you want to clean the intake system and valves, have BG Products Intake cleaning procedure done. It's about $100.

netzel2002 · 08-05-2011, 12:19 PM

it does have a throttle body.
http://cgi.ebay.com/ebaymotors/2006-...-/220753806916

ENINTY · 08-05-2011, 08:16 PM

Quote:

Originally Posted by netzel2002

it does have a throttle body.
http://cgi.ebay.com/ebaymotors/2006-...-/220753806916

It's only used as a back up. The N52 breathing (i.e. throttle) is controlled by the Valvetronic system.

08-05-2011, 09:54 AM	#1
netzel2002 New Member 3 Rep 6 Posts Drives: 2006 E90 325i Join Date: Sep 2009 Location: Houston, TX iTrader: (0)	Cleaning my Throttle body on my 2006 325i E90 I'm planning on cleaning the throttle body this weekend and also clean the MAF sensor. You guys think that will help me out? Should I remove the throttle body entirely from the car? Any ideas will be appreciated. My car runs good, but it shakes at idle when the engine is cold for like 10 seconds until the RPM drop around 550. Already replaced spark plugs, air filter, oil Mobil 1 0w40 (every 7500 miles). My mpg: 22.6 (city/hwy). Thanks !
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08-05-2011, 10:45 AM	#2
Glim Captain 21 Rep 780 Posts Drives: 2006 330i & 2013 X5 35i Join Date: Jun 2011 Location: Victoria, BC iTrader: (0)	How many miles on the car?
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08-05-2011, 10:49 AM	#3
netzel2002 New Member 3 Rep 6 Posts Drives: 2006 E90 325i Join Date: Sep 2009 Location: Houston, TX iTrader: (0)	105,000
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08-05-2011, 10:58 AM	#5
netzel2002 New Member 3 Rep 6 Posts Drives: 2006 E90 325i Join Date: Sep 2009 Location: Houston, TX iTrader: (0)	no shadow faults. I have a BT tool and no codes no nothing. Already used Chevron Techron Plus but no improvement.
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08-05-2011, 11:36 AM	#6
ENINTY Banned 173 Rep 3,415 Posts Drives: 2006 325i Sport Join Date: Jun 2006 Location: Virginia iTrader: (0)	There is no throttle body on the N52. If you want to clean the intake system and valves, have BG Products Intake cleaning procedure done. It's about $100.
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08-05-2011, 12:19 PM	#7
netzel2002 New Member 3 Rep 6 Posts Drives: 2006 E90 325i Join Date: Sep 2009 Location: Houston, TX iTrader: (0)	it does have a throttle body. http://cgi.ebay.com/ebaymotors/2006-...-/220753806916
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