Hi New here so treat me gently. I have a 2016 C220 with150k on the clock and a great car it has been. Until now. I have entered the adblue stage it seems. Late 2023 I had NOX sensor warnings and had them changed by MB under an outstanding recall. Between then and January this year no issues but the car was left on the drive for periods of 3, 2 and 1 month (which I guess has caused what I am about to describe). I now have the adblue issues. Started with the engine management light followed by the 'engine wont start in..' message. Checked the adblue level and it had the 'cannot measure' warning. Whilst I thought there was a half a tank I assumed it was wrong and it was empty and put more in - overfilling it (though I didn't realize this may have had consequences). I cleared the fault codes and expected no further issues. The lights and warnings quickly came back on and I read these forums to find the reality of the situation. For a period I was able to reset the codes (I use a very basic OBD system) whilst I read more and decided what to do. At one point the adblue level was also read. I also added Forte anti crystal to the tank.
I have now cleaned the sensor (which was solid and with no hole at all to let even small amounts of adblue through) and have no codes but the adblue level still reports that it cannot be read. More importantly despite there being no codes the message saying engine wont start in.. is still there.
So I now have a lump of metal in the drive with 200 miles left. I am now aware of the host of issues with Adblue but need to be able to sort something out to be able to get rid of the car (other than as scrap which would be a great shame as, despite the mileage, it is in otherwise great shape). I am uneasy about deleting the adblue but that may be the last (but one) resort.
My questions are: Is there a way of removing the 'Engine wont start in..' message - even short term? I tried disconnecting the battery to no avail. To do any work on the car I will need to move it so need 'more' miles. There are no codes showing and the message remains.
Could the overfill be causing a problem, should I drain the tank and what is the best way of doing this? There seems to be an anti syphon device when I have tried to put a pipe in. As above, I am loathe to move the car with a small number of miles left.
Can anyone recommend an indie in the South Wales/West area that has expertise in these problems? I use a good indie but they insist on using new MB parts only which I am worried may push the price up if it comes to a new adblue tank (bearing in mind I will probably get rid of the car ASAP).
Thanks in advance and apologies for another adblue post!
I have now cleaned the sensor (which was solid and with no hole at all to let even small amounts of adblue through) and have no codes but the adblue level still reports that it cannot be read. More importantly despite there being no codes the message saying engine wont start in.. is still there.
So I now have a lump of metal in the drive with 200 miles left. I am now aware of the host of issues with Adblue but need to be able to sort something out to be able to get rid of the car (other than as scrap which would be a great shame as, despite the mileage, it is in otherwise great shape). I am uneasy about deleting the adblue but that may be the last (but one) resort.
My questions are: Is there a way of removing the 'Engine wont start in..' message - even short term? I tried disconnecting the battery to no avail. To do any work on the car I will need to move it so need 'more' miles. There are no codes showing and the message remains.
Could the overfill be causing a problem, should I drain the tank and what is the best way of doing this? There seems to be an anti syphon device when I have tried to put a pipe in. As above, I am loathe to move the car with a small number of miles left.
Can anyone recommend an indie in the South Wales/West area that has expertise in these problems? I use a good indie but they insist on using new MB parts only which I am worried may push the price up if it comes to a new adblue tank (bearing in mind I will probably get rid of the car ASAP).
Thanks in advance and apologies for another adblue post!
