2006 E53 x5 4.4L

Diyengineer · 12-10-2023, 10:40 PM

Hello,

Odd problem with the 4.4L x5. Keeps throwing an error saying my o2 sensors are backwards and it’s driving me nuts. I even out all 4 new sensors in and still does it. I believe it’s the upstream 2 it thinks are backwards (there not the wire wouldn’t even stretch if I wanted to). Thoughts? Love this suv. Drove it 5000 miles and worked perfect till it started running rough one day.

John in VA · 12-12-2023, 08:28 AM

Try posting at https://xoutpost.com/bmw-sav-forums/x5-e53-forum/
Good luck!

cmyx6go · 12-12-2023, 06:02 PM

Quote:

Originally Posted by John in VA

Try posting at https://xoutpost.com/bmw-sav-forums/x5-e53-forum/
Good luck!

My old stomping grounds. I was a mod/admin there. It was a blast back in the day. They do still have a big following for E53s.

Diyengineer · 12-30-2023, 12:37 AM

Sold vehicle, unable to find issue something to do in the o2 sensor wiring.

sub7m19 · 01-07-2024, 05:17 PM

dang that sucks sorry to hear ;(

Diyengineer · 01-07-2024, 05:42 PM

It was in mint shape also :/

12-10-2023, 10:40 PM	#1
Diyengineer Private 18 Rep 56 Posts Drives: 2009 328i sedan, 2005 X5 4.4 Join Date: Dec 2023 Location: USA iTrader: (0)	2006 E53 x5 4.4L Hello, Odd problem with the 4.4L x5. Keeps throwing an error saying my o2 sensors are backwards and it’s driving me nuts. I even out all 4 new sensors in and still does it. I believe it’s the upstream 2 it thinks are backwards (there not the wire wouldn’t even stretch if I wanted to). Thoughts? Love this suv. Drove it 5000 miles and worked perfect till it started running rough one day.
	Appreciate 0 Tweet Quote

12-12-2023, 08:28 AM	#2
John in VA Colonel 985 Rep 2,197 Posts Drives: 2015 228i M Sport Join Date: Jul 2007 Location: Leesburg, VA iTrader: (6)	Try posting at https://xoutpost.com/bmw-sav-forums/x5-e53-forum/ Good luck! __________________ ____________________________________________ 2015 BMW 228i in EstorilBlau II Metallic / Terra Dakota Leather - 6-speed manual, M Sport Package, Cold Weather Package, Lighting Package, Premium Package, Harman Kardon premium sound, Anti-theft alarm system, Blue Metallic Matt Accent Moldings, Aluminum Hexagon Interior Strips, Anthracite Headlining
	Appreciate 1 cmyx6go15761.00 Quote

12-30-2023, 12:37 AM	#4
Diyengineer Private 18 Rep 56 Posts Drives: 2009 328i sedan, 2005 X5 4.4 Join Date: Dec 2023 Location: USA iTrader: (0)	Sold vehicle, unable to find issue something to do in the o2 sensor wiring.
	Appreciate 0 Quote

01-07-2024, 05:17 PM	#5
sub7m19 New Member 6 Rep 6 Posts Drives: BMW X5 E53 Join Date: Jan 2024 Location: SoCal iTrader: (0)	dang that sucks sorry to hear ;(
	Appreciate 0 Quote

01-07-2024, 05:42 PM	#6
Diyengineer Private 18 Rep 56 Posts Drives: 2009 328i sedan, 2005 X5 4.4 Join Date: Dec 2023 Location: USA iTrader: (0)	It was in mint shape also :/
	Appreciate 0 Quote