2016 S212 E220 Nox Sensor failure @ 75k

[ChrisTatters]

In

Yesterday it was half full so i topped it up last night. This morning it was reading 3/4 full. I checked again and it now states cannot measure fluid level

Yes 4500 miles it was telling me last night and this morning

 

[ChrisTatters]

It's possibly not dispensing ad blue , hence the nox failings . Is the dash giving you a picture of range of ad blue miles . ?

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Its now saying 4500 miles for Ad blue now! Ahhh i give up lol

 

[OneForTheRoad]

Its now saying 4500 miles for Ad blue now! Ahhh i give up lol

It can take 3 ignition cycles to register added ad blue or a 20 minutes drive. By the sounds of things I'd be putting 250 MLS of anti crystal in now . £10 or £1000 , your choice.