The BMW 318i oxygen sensor is important to the efficiency of your engine, aiding in the process that provides a balanced mixture of air and fuel to the engine for the combustion process. A well-balanced fuel and air mixture will promote a clean burn of the fuel in the combustion chamber, which produces the most efficient engine performance and power output. Located in the exhaust pipe in most vehicles, the BMW 318i oxygen sensor monitors the amount of oxygen left in the exhaust emissions of the engine after combustion to determine whether the fuel burned efficiently.

Using a voltage signal, the BMW 318i oxygen sensor transmits its readings to the vehicle computer, which uses it to adjust the fuel and air mixture accordingly. This cycle of monitoring and adjustment is continuous, allowing the vehicle to compensate for changes in the oxygen levels in the air coming into the engine compartment.

Many factors can change the oxygen level of the air, such as air temperature, elevation, and the load placed on the engine among many other variables. If the BMW 318i oxygen sensor fails, unable to transmit its signal to the vehicle computer, it will often default to a rich fuel and air mixture. This type of mixture can cause performance problems that include rough running and idling, hesitation, and excess fuel consumption. Our online catalog carries a selection of quality BMW 318i oxygen sensor replacements at very affordable prices. Ordering is always safe and easy on our secure site or our toll-free phone line is just as convenient, staffed with courteous and knowledgeable customer service representatives to help you order your BMW 318i oxygen sensor.