About Ricky Higdon Expertise I can answer all types of questions on all type of cars.
Foreign and domestic.
I cant answer questions on all electrical without the manual in front of me
Experience 20 yrs experience in Mercedes Benz Auto Repair.
Question I have a 1985 mercedes 500 sec and the light for the o2 sensor came on. What does it do and is it a big deal if its not fixed right away?
Answer Greetings! Im sorry for your luck!
This will not hurt anything if left on for a little while. It means that the oxygen sensor is tired and will be in need of replacement within a month or two. You may notice a small amount of gas usage and car may run a little different as this goes through the engine computer. But, you will need to fix this somewhere down the road! So save yourself about a hundred dollars to fix this. Thanks and have a great day! Rick
