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Mercedes-Benz engine light is Hearthstone deckon - check and solution when youWhen driving a Mercedes-Benz vehicle, if you find that the vehicle's engine warning light is on, it means that your vehicle has problems that may affect the driving and safety of the vehicle. Therefore, it is very important to check and deal with the problem in time after the engine warning light is on. First of all, let's find out the possible reasons why the engine warning light is on in Mercedes-Benz vehicles. There may be many reasons why the engine warning light is on. Here are some of the common reasons: 1. Oxygen sensor failure: The failure of the oxygen sensor will cause the engine warning light to light up. Two. Engine control module failure: If the engine control module fails, the engine warning light will turn on. 3. Air flow sensor failure: The air flow sensor is used to measure the oxygen content entering the engine. If it fails, the engine warning light will turn on.Four. Fuel pump failure: If the fuel pump fails, the engine warning light will turn on. 5. Ignition system failure: If the ignition system fails, the engine warning light will turn on. Now, let's find out what to do if the engine warning light of a Mercedes-Benz vehicle is on. Step 1: Stop and check. If you find that the engine warning light is on, you should stop the car as soon as possible and park it in a safe place. Before checking the vehicle, please make sure to turn off all electrical appliances, such as audio systems and car air conditioners. Step 2: Check the engine oil pressure. When the engine stops running, you need to check the engine oil pressure. If it is found that the oil pressure is below the normal range, it may be necessary to replace the oil filter or oil pump. You can find the normal range of oil pressure in the vehicle manual. Step 3: Check the coolingLiquid and other liquids check whether the coolant, gearbox fluid, brake fluid, power steering fluid and other liquids are sufficient. If these liquids are found to be insufficient, they should be added or replaced in time. Step 4: Check the battery connection and check whether the battery connection is loose or detached. This may cause the battery to fail to charge or have problems with the power supply. Step 5: Diagnostic instrument inspection If the above methods do not solve the problem, you can use the diagnostic instrument to check the engine. The inspection instrument can diagnose the engine fault code to determine which part the fault is caused by. In a word, the engine warning light of the Mercedes-Benz vehicle is on, which means that there is a potential problem with the vehicle, which needs to be checked and dealt with in time. The above treatment methods are for reference only, and the specific treatment methods depend on the specific cause of the failure. It is recommended that you do not repair it yourself, and you should seek the help of professional technicians.The most important thing is to ensure that your Mercedes-Benz vehicle is regularly maintained and inspected to reduce the chance of engine failure.

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