NOx sensor replacement HELP!
Thread Starter
Newbie
Joined: Jan 2021
Posts: 1
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GLK 2014
NOx sensor replacement HELP!
Hi everyone,
I find myself in a difficult situation. I own a GLK 220 BlueTEC 4MATIC.
I need to replace the NOx sensors on my GLK as the CSL and Adblue message came on a few days ago.
Problem is I don't know if the NOx sensor for the front is identical to the one in the rear or if they are two different sensors?
I was thinking of buying this NOx sensor: https://www.autodoc.se/aic/16116284h...e/aic/16116284
Should I buy 2 of those and replace the front and back sensor?
Some say you need one downstream and one upstream, some say they are the same. Im confused.
Many thanks for any help that would clarify this.
Aleko
I find myself in a difficult situation. I own a GLK 220 BlueTEC 4MATIC.
I need to replace the NOx sensors on my GLK as the CSL and Adblue message came on a few days ago.
Problem is I don't know if the NOx sensor for the front is identical to the one in the rear or if they are two different sensors?
I was thinking of buying this NOx sensor: https://www.autodoc.se/aic/16116284h...e/aic/16116284
Should I buy 2 of those and replace the front and back sensor?
Some say you need one downstream and one upstream, some say they are the same. Im confused.
Many thanks for any help that would clarify this.
Aleko
Junior Member
Joined: Jan 2019
Posts: 20
Likes: 6
2014 E250
My E250 Blutec had the NOx sensors replaced by the dealer recently. The dealer replaced both sensors. Below is excerpt from my original post from a few months ago.
Just got a code P2201 (using my icarsoft ) on my 2014 E250. Took the car to MB dealer. Dealer confirmed code P2201E1, dealer replaced up and down stream NOx sensor with updated version according to invoice. Also “performed CDI software update with updated SCN coding to Add 30o?” Not sure what this means. They: “road tested the car and found a 4:1 reduction through the SCR system. Car operating normally”. Part # 905-34-03 and “ 905-35-03.
Just got a code P2201 (using my icarsoft ) on my 2014 E250. Took the car to MB dealer. Dealer confirmed code P2201E1, dealer replaced up and down stream NOx sensor with updated version according to invoice. Also “performed CDI software update with updated SCN coding to Add 30o?” Not sure what this means. They: “road tested the car and found a 4:1 reduction through the SCR system. Car operating normally”. Part # 905-34-03 and “ 905-35-03.
