Hi guys,

Im new to the forum and got an A45 (W176) a couple of weeks ago. Since then a CEL has been on constantly and bugging me. I ran diagnostics and it’s showing a fault for oxygen sensor 2 (P0140-13). After calling the dealer he said the car had been fitted with sports cats, I asked if this will be causing the light and he said shouldn’t do. Can anyone advise ?

I have also noticed the last couple of the days that the air filter seems to be fluttering rather than dumping as it used to be. Will this be related ?

thank you.