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Mercedes Benz ML320 Parts And Mercedes Benz ML320 Accessories

Below you'll find a wide variety of Mercedes Benz ML320 parts and accessories. Enter the year of your Mercedes Benz ML320 to get a more customized product set. And remember, with our industry leading 30-day Guarantee, you can ensure you're shopping with a trusted partner.

Mercedes Benz ML320 Parts

Mercedes Benz ML320 Articles

  • A Basic Guide to the Mercedes Benz ML320 Check Engine Light

    The check engine light of the Mercedes Benz ML320 luxury crossover is a handy device that indicates that something is wrong with the engine. However, that \"wrong\" is can be ambiguous especially for those will little knowledge of how an automobile works.

    Once the engine light comes on, it can actually mean a lot of things, ranging from something as simple as a loose gas cap to even a malfunctioning engine computer. Here\'s a list of the common causes of a flashing check engine light, and how to address them:

    Engine misfire

    Arguably, the most common cause of the check engine light coming on is an engine that\'s not able to burn fuel properly. The modern combustion engine needs to burn a specific mixture of fuel and air, and if the mixture is incorrect, a certain amount of fuel may not be burned and may leak out into the exhaust manifold. This leak may then reach and contaminate the muffler, catalytic converter, and other exhaust components, causing severe damage to these parts.

    If the check engine light starts flashing followed by rough idling or engine stalling, it\'s likely to be caused by an engine misfire. In such case, you will need to conduct a thorough check on the engine as well as the ML320\'s onboard computer, as the latter calculates the amount of air and fuel that\'s injected into the combustion chambers.

    Tainted oxygen sensor

    Another common cause of the check engine light switching on is a contaminated oxygen sensor. This sensor, which is designed to track data on the fuel and air burned by the engine, can be damaged by oil and soot to result in inaccurate readings which, in turn, lead to an inaccurate fuel/air mixture. Constant engine overheating can also cause the sensitive parts of the oxygen sensor to melt. Whatever the reason may be, a broken oxygen sensor must be replaced to restore normal engine operation.

    Catalytic converter

    The check engine light can also be activated by a faulty catalytic converter, particularly when the converter\'s catalyst core has been contaminated by engine oil or fuel. A tainted catalyst will no longer be able to process exhaust gas from the engine effectively, leading to worse fuel emissions and mileage aside from triggering the engine light.

    Like the oxygen sensor, the catalytic converter is fragile and not user serviceable. So once it becomes damaged, it must be replaced as soon as possible.

    Mass airflow sensor

    Another sensor that can trigger the check engine light in the Mercedes Benz ML320 is the mass airflow sensor or MAF. This sensor, which provides data to the onboard computer regarding the amount of air that flows into the engine, is also prone to damage and oil contamination. And once it fails, the MAF sensor will provide inaccurate readings to the computer that, in turn, result in too little or too much air mixed with the fuel during the combustion process. In such an event, the sensor will need to be cleaned or replaced as necessary.