Hi,

it's been almost 1 week now that my checkengine light is on in my Audi A4, 2.8T. It's happens 2 days after i change the oil in the car. Can somedy tell me what it can be?

thanks.

 

Could be anything. You need to have the codes scanned to find out.

 

Go to Auto Zone, Advanced AP, etc... They have a code scanner that you can use for free to get the codes. Advanced even printed the codes out on a receipt for me with common causes. Get the code numbers and come back here and search.