Tips on removing/installing 02 sensors for x-pipe installation?

BimmerRob08 · 10-03-2009, 05:30 AM

Fella's,

I've read and heard about how mishandling the 02 sensors when removing and installing them can cause a CEL light or blow a fuse from one shop had told me a customer did by accident. I've heard that one tip is to remove the battery power from the vehicle, then you can disconnect the plugs of the sensors to their cable harness.
Also, since those sensors are probebly going to be very tight from heat exhaption and cooling. Would it be wise to use a little WD-40 or penetrating fluid to loosen the threads up a bit so not to strip the anything?
What tips can you all suggest so to prevent a blown fuse or CEL light or damage to any sensors?

Cheers,

J08M3 · 10-03-2009, 07:18 AM

there's not too much to worry about. There's a connector you can unplug then just drop them down with the OEM exhaust. Loosen with a wrench, install in your new x-pipe and then when x-pipe is installed in car just re-plug in the sensors.

H Bomb · 10-03-2009, 10:10 AM

when they did my midpipe there was a little area of the heat shield they had to trim for the O2 sensor. i will see if i can get a pic of it for you

King Tut · 10-05-2009, 12:30 PM

Man they are easy to remove. The car is relatively new so you shouldn't need any penetrating lube. I just removed them from the OEM pipes and let them hang then added a little anti-seize and threaded them back in the RPi system once I had everything bolted up.

BimmerRob08 · 10-05-2009, 04:31 PM

Sounds good fella's, thanks for the advise.

10-03-2009, 05:30 AM	#1
BimmerRob08 Major 110 Rep 1,311 Posts Drives: 2008 M3, Space Gray Join Date: Mar 2008 Location: KIKR (ABQ), NM iTrader: (0)	Tips on removing/installing 02 sensors for x-pipe installation? Fella's, I've read and heard about how mishandling the 02 sensors when removing and installing them can cause a CEL light or blow a fuse from one shop had told me a customer did by accident. I've heard that one tip is to remove the battery power from the vehicle, then you can disconnect the plugs of the sensors to their cable harness. Also, since those sensors are probebly going to be very tight from heat exhaption and cooling. Would it be wise to use a little WD-40 or penetrating fluid to loosen the threads up a bit so not to strip the anything? What tips can you all suggest so to prevent a blown fuse or CEL light or damage to any sensors? Cheers,
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10-03-2009, 07:18 AM	#2
J08M3 Major General 286 Rep 6,007 Posts Drives: 2011 M3 COUPE Join Date: May 2008 Location: NEW YORK iTrader: (8)	there's not too much to worry about. There's a connector you can unplug then just drop them down with the OEM exhaust. Loosen with a wrench, install in your new x-pipe and then when x-pipe is installed in car just re-plug in the sensors. __________________
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10-03-2009, 10:10 AM	#3
H Bomb Lieutenant Colonel 65 Rep 1,676 Posts Drives: 08 M3 Join Date: Jul 2007 Location: FL to NY iTrader: (4)	when they did my midpipe there was a little area of the heat shield they had to trim for the O2 sensor. i will see if i can get a pic of it for you __________________ Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD
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10-05-2009, 12:30 PM	#4
King Tut NASA SpecE30 Racer 82 Rep 1,307 Posts Drives: 2006 Honda S2000 TT3 Join Date: Jul 2008 Location: Gulf Breeze, FL iTrader: (2)	Man they are easy to remove. The car is relatively new so you shouldn't need any penetrating lube. I just removed them from the OEM pipes and let them hang then added a little anti-seize and threaded them back in the RPi system once I had everything bolted up. __________________ King Tut 2012 BMW M3 Individual: Sold lsb.ridedomain.com 1987 BMW 325is SpecE30: spece30.ridedomain.com 2009 BMW M3 Coupe: Sold e92.ridedomain.com
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10-05-2009, 04:31 PM	#5
BimmerRob08 Major 110 Rep 1,311 Posts Drives: 2008 M3, Space Gray Join Date: Mar 2008 Location: KIKR (ABQ), NM iTrader: (0)	Sounds good fella's, thanks for the advise.
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