bigfoot007

I have just got a P0140 error code = Oxygen Sensor After TWC, Bank 1 - Open Circuit, so I will have to get a new sensor, but I need to know which side of the car is bank 1.

I know the part number is 955 606 136 01, but I find two types of sensors with different sockets.
http://www.123piecesderechange.ch/cg...s_per_page=10&
or
http://www.123piecesderechange.ch/cg...606%20136%2001

So does anyone know which one to use?

MY03 Turbo

911SLOW

The sockets are the same, different angle, different manufacturer.

Bank 1 = cyl 1-4 , left side of the engine.

bigfoot007

Now I see it, just the angle makes one look like its round. Hard day at work!

Left side looking from the front I assume.

911SLOW

Yes , oil cap side.

bigfoot007

So next question is:

Has anyone done this change of sensor? if so how easy is it.

Looking at the service manual its shows to be fairly straight forward.