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-   -   Bank1 Bank2 O2 Sensors for ML320 (https://mercedesforum.com/forum/mercedes-m-class-16/bank1-bank2-o2-sensors-ml320-48374/)

superd270 06-01-2011 03:13 PM
Bank1 Bank2 O2 Sensors for ML320
 
Need help to identify which O2 sensors are for Bank1 and which are for Bank 2 for my '99 ML 320?

Passenger Side, Driver Side, Before Exhaust and After Exhaust?

I have a pending DTC Code PO156 O2 Circuit, Bank2 Sensor 2.

Advance thanks.

Danny

chassis221 06-01-2011 06:27 PM
should be left side after catalyst. or also the driver side in usa

superd270 06-01-2011 06:36 PM
Originally Posted by chassis221 (Post 150233)
should be left side after catalyst. or also the driver side in usa
Thank u "chassis221".
To complete my quest, would Bank 2 Sensor 1 be the sensor before the CAT on the Driver Side???

chassis221 06-01-2011 06:42 PM
yes
bank 1 is right side bank 2 is left side. sensor 1 is before and sensor 2 is after.

superd270 06-01-2011 06:50 PM
Quest complete.
Thanks Chassis221.:)


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