O2 sensor question....I'm about to replace a front O2 sensor....
 

just to clairfy - B2 S1 sensor - this is Primary O2 sensor (S1 - front) on the driver's side (bank 2) - correct?

Thanks in advance..

Jason

yuppers! Here's the part number Bank 2 Sensor 1 = 078 906 265M

Thanks - I just bought one, I've been getting codes for some time....
 

now. Finally getting around to replacing it. By the way, I know you looked in the Chicago area for one - the ones at The Exchange were ~$200/each - McGrath wanted $280 - what the ?*&^% - I cannot believe there is that much price difference on parts between different dealerships!