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Are girlfriend trying to uncover the location of the Oxygen O2 sensors in her Mercedes Benz? Well, photos are precious a thousands words, so below is one.

You are watching: Nox sensor bank 1 sensor 2 location

Take a look in ~ the picture and it will show whereby the Oxygen O2 sensors space located. If you room trying come find any of these sensors: bank 1 Sensor 1, bank 1 Sensor 2, financial institution 2 Sensor 1, financial institution 2 Sensor 2 take a look in ~ the photo below.

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To clear up a couple of things. This is (was) a 320 M112 engine. Store in mind the this is the usual configuration for most Mercedes-Benz V6 and also V8 engines such as the M113 M119 M272 M273.

Where to buy OEM Oxygen O2 Sensors and also save?

If you have the check engine light on, specifically for any kind of of the codes listed below you will certainly most likely need to change the oxygen sensor. Girlfriend can gain the O2 sensor digital at a fraction of the price. Universal sensors work-related too, but we introduce original devices sensors. The initial O2 sensors are frequently made by Bosh. Us have set up this Amazon search for original Mercedes Benz O2 Bosch sensors.

Where is Bank 1?

Bank 1 is ~ above the side wherein cylinder 1 is located; that’s for any car. Top top the Mercedes – Benz V6 and V8 engines bank 1 refers to the right side that the automobile which is the passenger side, for left-hand drive vehicles.

Bank 1 Sensor 1 is the upstream (pre-cat) top top the passenger side.Bank 1 Sensor 2 is the downstream (post cat) on the passenger side.

Bank 2 is ~ above the driver side. 

Bank 2 Sensor 1 is ~ above the upstream (pre-cat) top top the driver side.Bank 2 Sensor 2 is the downstream (post cat) on the driver side.

Where is Sensor 1? 

Sensor 1 is the O2 sensor the is located before (upstream) the the catalytic converter or additionally called the pre-catalytic converter.

Where is Sensor 2?

Sensor 2 is the sensor that is located after (downstream) the catalytic converter or likewise called the post-cat.

Check engine light codes linked with a poor oxygen sensor. 

Bank 1 Sensor 1 (Upstream) (pre-cat)

P0130 O2 Sensor Circuit break down (Bank 1 Sensor 1)P0131 O2 Sensor Circuit short Voltage (Bank 1 Sensor 1)P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)P0133 O2 Sensor Circuit Slow response (Bank 1 Sensor 1)P0134 O2 Sensor Circuit No activity Detected (Bank 1 Sensor 1)P0135 O2 Sensor Heater Circuit malfunction (Bank 1 Sensor 1)P2080 Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 1)P2081 Exhaust Gas Temperature Sensor Circuit Intermittent (Bank 1 Sensor 1)

Bank 1 Sensor 2 (Downstream) (post cat)

P2031 Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)P2032 Exhaust Gas Temperature Sensor Circuit low (Bank 1 Sensor 2)P2033 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)P0136 O2 Sensor Circuit failure (Bank 1 Sensor 2)P0137 O2 Sensor Circuit low Voltage (Bank 1 Sensor 2)P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)P0139 O2 Sensor Circuit Slow solution (Bank 1 Sensor 2)P0140 O2 Sensor Circuit No task Detected (Bank 1 Sensor 2)P0141 O2 Sensor Heater Circuit breakdown (Bank 1 Sensor 2)

Bank 2 Sensor 1 (Upstream)

P0150 O2 Sensor Circuit malfunction (Bank 2 Sensor 1)P0151 O2 Sensor Circuit low Voltage (Bank 2 Sensor 1)P0152 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)P0153 O2 Sensor Circuit Slow response (Bank 2 Sensor 1)P0154 O2 Sensor Circuit No activity Detected (Bank 2 Sensor 1)P0155 O2 Sensor Heater Circuit breakdown (Bank 2 Sensor 1)

Bank 2 Sensor 2 (Downstream)

P0156 O2 Sensor Circuit breakdown (Bank 2 Sensor 2)P0157 O2 Sensor Circuit short Voltage (Bank 2 Sensor 2)P0158 O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)P0159 O2 Sensor Circuit Slow response (Bank 2 Sensor 2)P0160 O2 Sensor Circuit No task Detected (Bank 2 Sensor 2)P0161 O2 Sensor Heater Circuit break down (Bank 2 Sensor 2)

So that is it, how to find where the oxygen sensor is located in her car.

See more: Convert 6 Inches Is How Many Cm Converter, Inches To Cm Converter

 How to change a poor oxygen O2 sensor. 

Replacing the downstream / article cat O2 sensors is easy. The is easy simply to gain under the auto to change them. The upstream ones room a little an ext tricky, together there is no as much an are available because that you to work. Below are a couple of videos that can help you.