As I have ghe car siz months  would  this be covered under Audi warranty?, if not is it expensive?

Hello Martin

You don’t tell us how long the warranty period was with this car you bought 6 months ago.

Kind regards,

Gareth. 

12 months, fuel gets treated with Cataclean ect 

Thanks Martin, 

We’ve established the car is still under warranty, but unfortunately I cannot see anyone on here will be able to answer your question without access to the terms and conditions of the actual warranty. 
Have you had a good look at the warranty? If so, and you are still unsure, then I would suggest you contact the seller and see what they say. 
If you are still dissatisfied, then you would do well to contact your local CAB office, armed with a copy of the warranty, and  pay them a visit for advice. 
Kind regards,

Gareth. 

Is it safe to continue  drinking  , it drives fine apart  from the engine  light??

20 minutes ago, Killzone said:

Is it safe to continue  drinking  , it drives fine apart  from the engine  light??

Hi not for long as the oxygen sensor if faulty makes the engine management system go into a default strategy which will make the fueling run richer this will eventually kill the catalytic converter the sensors only cost just over £100 for a good one [Bosch], by the sounds of it yours is in the early stages of failure get it diagnosed to see if its a hard fault and can't be deleted.

Steve.

Ok thanks  very much