Where is bank 1 sensor 1 located and bank 2 sensor 1

Its the first sensor in both exhaust pipes. Find where the exhaust manifold connect to the motor and follow it the sensor before the catalytic converters are sensor one on both banks

follow exhaust from one side of engine manifold at engine to the first wired in o2 sensor then do the same on other side.same way. bank one left side bank two right side engine

The prices of both sensor bank1&2

Js08016 The Bank refers to the side of the motor. Bank 1 is the side that cylinder number one is on and Bank 2 is the other. Sensor 1 is the upstream sensor and sensor 2 is the downstream sensor after the catalytic converter.

Where is the fwd O2 sensor located on a 2003 Bmx x5

Can anyone tell me whether there are more then the Two air filters, I'm aware of which go in the 2006 BMW X5 (E53) 3.0i M54B30 type Sport Activity Vehicle I own. I know of the activated charcoal cabin air filter---I'm not sure though whether it the one goes into box under hood on driver side ... or if it goes into the cowl/firewall of the vehicle. One of the two filters is long and other one is short. My email address is blow45@yahoo.com if you have a link with pics of which ever number total air filters used in the 2006 BMW aforementioned herein above would be greatly appreciated thank you. X5_Zuka_06