C200 Petrol W205 2015: Is there a reason that the NOX sensor must be replaced?

Neptuno

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Is there a reason that the NOX sensor must be replaced? At the last service by a reputable Mercedes independent in July on my C200 petrol W205 2015, Star diagnosed a faulty NOX sensor. (There are still none available). The ECU was patched to ignore the fault and the car has performed perfectly since. On my C270CDi I did the modification to disable the EGR which impacts NOX emissions. Is there a good reason why the sensor should be replaced?
 
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Neptuno

Neptuno

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At the last service by a reputable Mercedes independent in July on my C200 petrol, Star diagnosed a faulty NOX sensor. (There are still none available). The ECU was patched to ignore the fault and the car has performed perfectly since. On my C270CDi 14 years ago I did the modification to disable the EGR which impacts NOX emissions. Is there a good reason why the sensor should be replaced?
 

onefortheroad

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Is there a reason that the NOX sensor must be replaced? At the last service by a reputable Mercedes independent in July on my C200 petrol W205 2015, Star diagnosed a faulty NOX sensor. (There are still none available). The ECU was patched to ignore the fault and the car has performed perfectly since. On my C270CDi I did the modification to disable the EGR which impacts NOX emissions. Is there a good reason why the sensor should be replaced?

To comply with euro 6 emissions regulations. I see it everyday now though , owners are having the ad blu and nox written out of the ECU data due to costing issues and repeat failures.
 

Steve@Avantgarde

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To comply with euro 6 emissions regulations. I see it everyday now though , owners are having the ad blu and nox written out of the ECU data due to costing issues and repeat failures.
Which makes them illegal to drive...
 

onefortheroad

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Which makes them illegal to drive...

And how many used cars are out there now, that's been adjusted, for sale ,I wonder . ?

Also what amazes me is the amount of youngens flying about in heavily remapped corsas etc ,spewing out cloud upon cloud of black smoke and that's legal. ?
 
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alexanderfoti

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And how many used cars are out there now, that's been adjusted, for sale ,I wonder . ?

Also what amazes me is the amount of youngens flying about in heavily remapped corsas etc ,spewing out cloud upon cloud of black smoke and that's legal. ?
If it makes you feel any better, thats also illegal.
 


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