Merc 2.2 CDI O2 and NOx sensor locations?

Merc 2.2 CDI O2 and NOx sensor locations?

Author
Discussion

TroubledSoul

Original Poster:

4,612 posts

199 months

Monday 23rd September 2019
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I have error P2208 - Powertrain; NOx Sensor Heater Sensor Circuit bank 1 and P2242 - Powertrain; O2 Sensor Positive Current Control Circuit High bank 2 Sensor 1.

With this being a 4 cylinder engine, I have no clue where bank 1 is for the NOx sensor, nor where bank 2 is for the O2 sensor? Can anyone shed any light? Goole isn't helping much, and the only illustration I've found up to now has been for a V8 or V6 car.

I'd like to get cracking on sorting these so any help would be very much appreciated.

TroubledSoul

Original Poster:

4,612 posts

199 months

Thursday 26th September 2019
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Lively in here!

Anyone?

Disco_Biscuit

837 posts

199 months

Saturday 28th September 2019
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TroubledSoul said:
I have error P2208 - Powertrain; NOx Sensor Heater Sensor Circuit bank 1 and P2242 - Powertrain; O2 Sensor Positive Current Control Circuit High bank 2 Sensor 1.

With this being a 4 cylinder engine, I have no clue where bank 1 is for the NOx sensor, nor where bank 2 is for the O2 sensor? Can anyone shed any light? Goole isn't helping much, and the only illustration I've found up to now has been for a V8 or V6 car.

I'd like to get cracking on sorting these so any help would be very much appreciated.


PM me your vin and I’ll look it up for you on wis, usually need a software update and values reset when replacing those.

pete_esp

257 posts

100 months

Tuesday 1st October 2019
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I just had this on my 2015 W212 E220 estate, I got mine replaced with 100% Goodwill so didn't cost me a bean.

I was told that MB aren't quibbling over replacing these sensors are they are well known to be problematic.

Plus the software update has the car pulling a lot harder than it used to and being more responsive to throttle inputs than it used to be.