So I recently had an issue with an Exhaust Gas Temperature Sensor causing an error (Bank 1 Sensor 3). Got a replacement from Audi and changed the sensor and that seems to have resolved that issue. However, something that's been done during the process of replacing this sensor seems to have prompted a different error: "AdBlue/DEF fault. No restart in 650 miles."
First thing I tried was topping up the adblue, clearing the fault and going for a drive. It seemed to clear and I drove for the rest of the day thinking it was sorted. But then when I turned the car on the next morning the error appeared again and I now it won't go away (the fault won't clear).
I've been trawling the internet for an explanation and it seems like quite a common issue with VAG cars. From what I've seen the main solutions have been:
1) A reset/recalibration of the adblue metering system - apparently it can go 'out of whack' after work has been done on the system (Can i do this with OBDeleven?)
2) A software update is required - which seems odd on a 5 year old car but apparently that's fixed it for some people
3) Replacement AdBlue tank/sensor unit at a cost of several hundred pounds just for the part (so I'm hoping it's not this) and it would be a bit random if it's suddenly failed at the same time this job was being done.
4) A couple of people have said they had a faulty Nox sensor or the AdBlue injector needed cleaning/replacing but these issues seem to be less common.
We're due to be going away on a family holiday in the car shortly and I've currently got a 600 mile countdown before the car won't turn on so I'm feeling really stressed about it. Just wondering if anyone can offer any help/advice/experiences to point me in the right direction please as I'm pretty sure Audi won't even book me in before we're supposed to be going away?
First thing I tried was topping up the adblue, clearing the fault and going for a drive. It seemed to clear and I drove for the rest of the day thinking it was sorted. But then when I turned the car on the next morning the error appeared again and I now it won't go away (the fault won't clear).
I've been trawling the internet for an explanation and it seems like quite a common issue with VAG cars. From what I've seen the main solutions have been:
1) A reset/recalibration of the adblue metering system - apparently it can go 'out of whack' after work has been done on the system (Can i do this with OBDeleven?)
2) A software update is required - which seems odd on a 5 year old car but apparently that's fixed it for some people
3) Replacement AdBlue tank/sensor unit at a cost of several hundred pounds just for the part (so I'm hoping it's not this) and it would be a bit random if it's suddenly failed at the same time this job was being done.
4) A couple of people have said they had a faulty Nox sensor or the AdBlue injector needed cleaning/replacing but these issues seem to be less common.
We're due to be going away on a family holiday in the car shortly and I've currently got a 600 mile countdown before the car won't turn on so I'm feeling really stressed about it. Just wondering if anyone can offer any help/advice/experiences to point me in the right direction please as I'm pretty sure Audi won't even book me in before we're supposed to be going away?