hi,
my check engine light is on.
the car runs normal but its burning fuel really badly. it sort have less power than before and the smell fumes from the exhaust is like paint????!!!! i stored the car thnk god for winter so its all good but spring is coming and i got to fix it.

its a 2003 c230 kompressor coupe

i did race with the car few times and i did wati was not suppose to do and i red lined it few times so please dun say its the valves ahahah

 

You may have a cat going bad, or a leaky injector,but cant be sure. If you are racing the vehicle on an approved track like you are supposed to! You better watch out if you have an extended warranty on the car. If you have a track offical who also works at a mercedes dealer or is just there for fun it's instant drive train deletion of your warranty. all he needs is your vin and some paperwork.