How hard to replace O2 Sensor?


Old 09-07-05, 08:34 AM
Thread Starter
Join Date: Feb 2005
Posts: 28
How hard to replace O2 Sensor?

I have a 98 BMW 318i with a rough idle. I was wanting to replace the O2 sensor and see if that fixes the problem. I have checked out the Bosch replacement part and where it goes on the exhaust system but what's the procedure on replacing it. I don't want to get halfway into the job and realize something bad.

Thanks for anything help or links!
Sponsored Links
Old 09-08-05, 08:36 AM
jatco's Avatar
Join Date: Mar 2004
Location: Vancouver, BC
Posts: 1,045
Just curious.. but why do you think the O2 sensor(s) is/are bad?
I would probably try to do a diagnostic scan 1st to see what that reads. It may not be the O2's.
Bad idle could be related to vac leak, bad plugs and/or wires..something else maybe.
Whats the mileage on your '98? Check other possibilites 1st, imo. Might save you from changing something that isnt the problem.
Just my $.02 worth.
If you do change out the O2, try and get a direct fit one, with the wiring harness and connector in 1 piece. A lot easier than getting a 'universal' fit, where you'd have to do some wire splicing.
( ....if I can add this) ..coz I was looking for O2's as I did get a bad O2 sensor reading when I scanned my car.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes