![]() The mass air flow sensor is a wearing part. ![]() What causes MAF sensor to fail in C-Class? This can cause the engine warning light to illuminate in the instrument cluster and the fault can be read out by a diagnostic device. The engine runs too “lean” or too “rich”. The optimal amount of fuel can no longer be calculated which results in either too little or too much fuel injected into the combustion chambers. If the MAF sensor is defective or dirty, it does not send correct measured values to the control unit of C-Class. What happens when MAF sensor malfunctions in Mercedes-Benz C-Class? It is not only important for power delivery in your C-Class, but also for the lowest possible pollutant emissions. The mass air flow sensor is part of the engine’s intake system and is located between the air filter box and the throttle valve. Dirty or faulty mass air flow sensor (MAF)ĭefective or dirty mass air flow sensor (MAF) in your Mercedes-Benz C-Class can result in loss of power, uneven engine running, erratic idling, misfires, poor exhaust emission values including black smoke. So this is the first thing you should check. Replacing the filter on your C-Class takes a few minutes and does not require any special knowledge. In the worst case, the engine can stall if the air filter is extremely clogged. This ultimately also increases fuel consumption. air filter? The cabin air filter in a C230 refers to the filter that filters the air inside your vehicle (where you and your passengers sit) whereas the air filter filters the air that goes into your engine.If the air filter is dirty in your Mercedes-Benz C-Class, it can have a negative effect on the performance of the engine, as less air passes through the dirty filter which suffocates the engine. If your C230 has a funky odor when you turn on the heat or air conditioner, or it seems like the fan doesn't work as well as it used to, replacing your cabin air filter is a quick and cheap fix! Cabin air filter vs. Newer cars are more likely to have a cabin air filter than older models. Not all Mercedes-Benzs have a cabin air filter and for some models, the inclusion of a cabin air filter depends on what trim level you have (Kompressor). ![]() However, if you pay to have the cabin air filter changed for you, that can easily cost $50 - $100. These filters are fairly inexpensive, the cost of a cabin air filter is usually $10 - $30 (tip: buy several - they don't expire and you will be able to quickly swap the old one out for a fresh one). Replacing the cabin air filter (also known as the dust filter, hvac filter, pollen filter, air conditioner filter and hepa filter) will improve the air quality of your C230, will put less strain on your heating and air conditioning system and can increase your gas mileage. If you drive in dusty conditions, lots of stop and go traffic or have sensitivities to pollen, road dust and pollution, change your cabin air filter more often. How often to change the cabin air filter? Change your cabin air filter frequently: at least once a year or every 20,000 miles. The cabin air filter in your 2002 Mercedes-Benz C230 filters the air that is blown from your heater or air conditioner into the cabin of your C230. ![]()
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