Power loss on 2002 c230 coupe automatic
I have a 2002 c230 coupe automatic, the 1.8 engine, not the 2.3.
Since having it serviced about 3000 miles ago the car seems at least 20% down on power, the fuel consumption has also been similarly effected. The best mpg i can get being very very careful is 12.5 litres per 100kms (half highway, half city) {18mpg}
The garage that serviced it put in slightly too much oil and the computer threw a warning code of "too much oil" but it went away after 2weeks. The one cam sensor solenoid has always been a bit oily, i try clean it when i remember.
The car is not stalling,stuttering or misfiring but its just not the same car. I have to give it a firmer prod on the gas pedal to make it shift down a gear.
Any ideas of what it could be? I would like some ideas before i take it in to be looked at. Hate when you get quoted for a fix and it comes back exactly the same. Please help

It is evident that your air/fuel ratio is out & I'm trying to work out why.



