Would you like to improve your fuel efficiency by 10 to 15 percent? Would you like reducing the amount of exhaust that your sporty vehicle emits? You should make sure then that your Mercedes CLK430 oxygen sensor is in optimal condition. If it is not in prime form, your engine will surge or hesitate. The oxygen sensor is a small electronic device that measures how much oxygen is mixed into the fuel.

It feeds this information to the computerized Electronic Control Unit (ECI) which then makes adjustments to create maximum efficiency in the engine. If you have too much oxygen mixed in with your fuel, it is said that you have a poor fuel mixture.

If you have not enough oxygen it is said that it is too rich of a fuel mixture. A poor mix of fuel not only causes surging or hesitating in your engine, but can also cause problems in the catalytic converter. Depending on the year that your particular automobile was made determines how frequently the oxygen sensor should be replaced. For those that have an unheated sensor in a vehicle made between 1976 and the early 1990s, it should be replaced every 30,000 to 50,000 miles. For vehicles with a heated sensor made between the mid 1980s and the mid 1990s, change it every 60,000 miles. For heated sensor vehicles made after the mid 1990s, replace it every 100,000 miles.Keeping your Mercedes CLK430 oxygen sensor in prime form can save you money in the long run by saving you fuel and by keeping all other exhaust system components in great shape.