P0138 Code on 2007 X3 40k
So mainly due to Sandy I have not driven my X3 for a week - Long Gas Lines.
Then we had 5 inches of snow and my wife needed it.
Shortly after starting the "Service Engine Soon" came on and has remained on.
I dropped into Pep boys and they read and reset the code P0138.
Strangely immediately after the reset the bulb fail light came on and I can't see one that is out.
I have read through some forum and most say that O2 sensors are unlikely to go at 40k miles.
I have replace O2 sensors before on a Subaru and have the tool but of course I am not sure which one it is and don't want to buy and replace all of them just to find out there wasn't a problem.
Is it possible it was a one off trigger?
How many O2 sensors are there on the X3?
Is there a way to test the O2 Sensors in situ?
If all else fails anyone know of a reliable repair shop on central Long Island NY?
Or maybe I can do it myself.
Biggles the ace pilot
Last edited by BigglesTAP; 11-08-2012 at 10:06 AM.