changing pre cat o2 sensor

fo55il · 11-15-2014, 02:40 AM

hi guys,

anyone changed this themselves?

I want to change mine.

Ive sourced a hoist and had a look today, seems a bit of a mess.

best way to change them?

lemonpark · 11-16-2014, 08:05 AM

i need to do this aswell, where are you sourcing your O2 sensor from? link please? im thinking i might ship from america as its about half the price

Scotty89 · 11-16-2014, 02:39 PM

You'll need to remove the steering rack and reach it from the bottom.

Coupes33 · 11-16-2014, 04:04 PM

Quote:

Originally Posted by fo55il

hi guys,

anyone changed this themselves?

I want to change mine.

Ive sourced a hoist and had a look today, seems a bit of a mess.

best way to change them?

I have removed the oxygen sensors a couple of times during the removal of the downpipes. You need to remove the bolts from the steering rack and move it around to allow access. There is also an aluminium cover below the steering box that needs to be removed. Once access is achieved, you need a short open ended spanner to undo the sensors. I made my own which may not be ideal but it works. It is easier when removing/installing the downpipes as once the front downpipe is removed, it is easier to get to the oxygen sensor on the rear downpipe.

fo55il · 11-16-2014, 06:44 PM

Thanks guys! Down pipe diy is helpful. I was hoping that there would have been an easier way.

Lp here is the one i got.
Did lots of research, this one workhttp://www.amazon.com/gp/aw/d/B000JZGEWE?vs=1&vs=1

lemonpark · 11-17-2014, 11:12 AM

exact same one i was looking at haha gonna order it soon, just havent got around to making a amazon account. if you dont mind me asking how much was the shipping to Aus? thanks

fo55il · 11-17-2014, 06:14 PM

I think in total was 125 delivered. Not bad

lemonpark · 11-18-2014, 12:26 PM

just ordered mine

ordered pre cat sensors for both bank 1 and 2 just because might as well when its cheap

Says shipping will be 7-11 days so I'm hoping it comes before our big drive, so if my headlights aren't working, atleast I have full boost

HEHEHE im so happy right now LOL

fo55il · 11-18-2014, 03:45 PM

Quote:

Originally Posted by lemonpark

just ordered mine

ordered pre cat sensors for both bank 1 and 2 just because might as well when its cheap

Says shipping will be 7-11 days so I'm hoping it comes before our big drive, so if my headlights aren't working, atleast I have full boost

HEHEHE im so happy right now LOL

how are you planning on doing it?

lemonpark · 11-18-2014, 03:57 PM

getting it done at a shop, but i don't want to get banned so i will not talk about that here. sorry. these admins on a power trip scare me lel.

lemonpark · 11-18-2014, 03:59 PM

but from what i've heard, its kind of hard/takes a while to do.

11-15-2014, 02:40 AM	#1
fo55il Banned 53 Rep 912 Posts Drives: 335i Join Date: Jun 2013 Location: Melbourne Australia iTrader: (0)	changing pre cat o2 sensor hi guys, anyone changed this themselves? I want to change mine. Ive sourced a hoist and had a look today, seems a bit of a mess. best way to change them?
	Appreciate 0 Tweet Quote

11-16-2014, 08:05 AM	#2
lemonpark Captain 58 Rep 610 Posts Drives: '08 335i E92 Join Date: May 2014 Location: Melbourne iTrader: (0)	i need to do this aswell, where are you sourcing your O2 sensor from? link please? im thinking i might ship from america as its about half the price __________________ JB4 G5 ISO \| BMS Backend Flash \| Alpina B3 TCU Flash \| AR Design Catless DP \| BMS DCI \| ER CP \| Turbosmart Race Port BOV \| Muffler Delete \| H&R Sport Springs \| BMS Cowl \| BMW Performance Alcantara Wheel \| M3 DCT Paddles \| Muse Concept and Design Interior \| 19" GTC-CX \| M3 Lip Spoiler \| Zieg CF Rear Diffuser \| Flow Designs Front Lip \| Black Grill \| RGB LED Angel Eyes \| 8000K HID \|
	Appreciate 0 Quote

11-16-2014, 02:39 PM	#3
Scotty89 Buy a 335 they said... It'll be fun they said... 117 Rep 995 Posts Drives: 2007 E92 335i Join Date: Jun 2014 Location: Melbourne, Australia iTrader: (0) Garage List 2007 BMW 335i [10.00]	You'll need to remove the steering rack and reach it from the bottom.
	Appreciate 0 Quote

11-16-2014, 06:44 PM	#5
fo55il Banned 53 Rep 912 Posts Drives: 335i Join Date: Jun 2013 Location: Melbourne Australia iTrader: (0)	Thanks guys! Down pipe diy is helpful. I was hoping that there would have been an easier way. Lp here is the one i got. Did lots of research, this one workhttp://www.amazon.com/gp/aw/d/B000JZGEWE?vs=1&vs=1
	Appreciate 0 Quote

11-17-2014, 11:12 AM	#6
lemonpark Captain 58 Rep 610 Posts Drives: '08 335i E92 Join Date: May 2014 Location: Melbourne iTrader: (0)	exact same one i was looking at haha gonna order it soon, just havent got around to making a amazon account. if you dont mind me asking how much was the shipping to Aus? thanks __________________ JB4 G5 ISO \| BMS Backend Flash \| Alpina B3 TCU Flash \| AR Design Catless DP \| BMS DCI \| ER CP \| Turbosmart Race Port BOV \| Muffler Delete \| H&R Sport Springs \| BMS Cowl \| BMW Performance Alcantara Wheel \| M3 DCT Paddles \| Muse Concept and Design Interior \| 19" GTC-CX \| M3 Lip Spoiler \| Zieg CF Rear Diffuser \| Flow Designs Front Lip \| Black Grill \| RGB LED Angel Eyes \| 8000K HID \|
	Appreciate 0 Quote

11-17-2014, 06:14 PM	#7
fo55il Banned 53 Rep 912 Posts Drives: 335i Join Date: Jun 2013 Location: Melbourne Australia iTrader: (0)	I think in total was 125 delivered. Not bad
	Appreciate 0 Quote

11-18-2014, 12:26 PM	#8
lemonpark Captain 58 Rep 610 Posts Drives: '08 335i E92 Join Date: May 2014 Location: Melbourne iTrader: (0)	just ordered mine ordered pre cat sensors for both bank 1 and 2 just because might as well when its cheap Says shipping will be 7-11 days so I'm hoping it comes before our big drive, so if my headlights aren't working, atleast I have full boost HEHEHE im so happy right now LOL __________________ JB4 G5 ISO \| BMS Backend Flash \| Alpina B3 TCU Flash \| AR Design Catless DP \| BMS DCI \| ER CP \| Turbosmart Race Port BOV \| Muffler Delete \| H&R Sport Springs \| BMS Cowl \| BMW Performance Alcantara Wheel \| M3 DCT Paddles \| Muse Concept and Design Interior \| 19" GTC-CX \| M3 Lip Spoiler \| Zieg CF Rear Diffuser \| Flow Designs Front Lip \| Black Grill \| RGB LED Angel Eyes \| 8000K HID \|
	Appreciate 0 Quote

11-18-2014, 03:57 PM	#10
lemonpark Captain 58 Rep 610 Posts Drives: '08 335i E92 Join Date: May 2014 Location: Melbourne iTrader: (0)	getting it done at a shop, but i don't want to get banned so i will not talk about that here. sorry. these admins on a power trip scare me lel. __________________ JB4 G5 ISO \| BMS Backend Flash \| Alpina B3 TCU Flash \| AR Design Catless DP \| BMS DCI \| ER CP \| Turbosmart Race Port BOV \| Muffler Delete \| H&R Sport Springs \| BMS Cowl \| BMW Performance Alcantara Wheel \| M3 DCT Paddles \| Muse Concept and Design Interior \| 19" GTC-CX \| M3 Lip Spoiler \| Zieg CF Rear Diffuser \| Flow Designs Front Lip \| Black Grill \| RGB LED Angel Eyes \| 8000K HID \|
	Appreciate 0 Quote

11-18-2014, 03:59 PM	#11
lemonpark Captain 58 Rep 610 Posts Drives: '08 335i E92 Join Date: May 2014 Location: Melbourne iTrader: (0)	but from what i've heard, its kind of hard/takes a while to do. __________________ JB4 G5 ISO \| BMS Backend Flash \| Alpina B3 TCU Flash \| AR Design Catless DP \| BMS DCI \| ER CP \| Turbosmart Race Port BOV \| Muffler Delete \| H&R Sport Springs \| BMS Cowl \| BMW Performance Alcantara Wheel \| M3 DCT Paddles \| Muse Concept and Design Interior \| 19" GTC-CX \| M3 Lip Spoiler \| Zieg CF Rear Diffuser \| Flow Designs Front Lip \| Black Grill \| RGB LED Angel Eyes \| 8000K HID \|
	Appreciate 0 Quote