Hello, I have a 1992 190e 2.6 litre. My check engine light is on, I am taking the car to a mechanic to check the codes to find the problem. I'm guessing it's the oxygen sensor. To save money I am then going to change the sensor myself, or do any other repair to fix the diagnosed problem.
The tech tells me that once fixed the light won't then just go off , he say's the computer has to be reset. He tells me it'll cost $50.00, I'm not against a mech making some money, I just don't have it..
Is it a simple process to reset a computer? If so would someone kindly advise me on how to perform this, thank you. Mike