Hi Everyone, 

 

This is my first time asking a question on this, so please forgive me if this has been discussed previously. 

I have an Audi A7 sportback that went in for a service in March of this year. Following the service the car registered that the oil level was too high and needed reducing. Unfortunately, I wasn't driving the car and so it wasn't dealt with immediately. When I was told about it by my partner, white smoke had started coming out of the exhaust. I had her pull the car over and then had it recovered by Audi back to the garage that performed the service, which they redid for me. Since this happened, the car has recorded a fault with the Emissions sensor and developed a static engine management light fault. Audi have the car currently and are telling me that there is no way that they overfilled the car with oil and that subsequent faults are not their responsibility. 

What I would like to check is that, if you overfill a modern car, in this case a 2018 Audi A7, can it result in failure of components such as the emissions sensors and the catalytic converter? 

Kind regards

Gareth 

Not sure if this is true for A7, but if the A5 B8 was overfilled with oil, it could enter the bottom of air filter housing which directly in line is the MAF sensor that will cause the static fault light if dirty 🤔

 

Maybe someone can confirm or deny this.

 

Either way, I'd be tempted to spend £12 and 10 minutes removing and cleaning the MAF sensor. Won't do any harm.