I have a 2001 230CLK. Auto changes very erratic at times fault code P0715 input/turbine sensor A circuit.I would like to know where is this sensor is it easy changed and is it expensive.

Also two CO sensor codes show up P0132+P0135 which co sensor is it.THANKS

By CO sensor, i will assume you mean 02 sensors.

Here are those codes and location of that sensor is front sensor, bank1/passenger side .. 02 heater is suspect.

Bank 1 vs. bank 2

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