The fuel pump have sound1

If your Mercedes Benz fuel pump is making a sound, it could be a sign that it is failing or faulty. There are some possible causes and solutions for this problem, such as:

• The fuel pump may be loose or improperly installed. You can try to tighten it or reinstall it to get rid of the noise. You can watch some videos that show how to do this, such as Do This Before Replacing Your Fuel Pump ! Crank No Start / Fuel Pump Relay Fix . Mercedes C280 or How To Tell If Your Mercedes Fuel Pump Is Bad (Fuel Pressure Test DIY).
• The fuel pump may have a dirty filter that restricts the flow of fuel. You can try to replace the filter and keep the tank at least 3/4 full to prevent the noise. You can read more about this in New Fuel Pump Noise? Here’s What You Want To Check.
• The fuel pump may be worn out or damaged and need to be replaced. You can test the fuel pressure with a gauge to see if it is above 50 psi. If not, the fuel pump may be bad. You can also check for other symptoms, such as difficulty starting, decrease in power, lower fuel economy, or whining noises from your pump. You can read more about this in Signs of a Bad Mercedes Fuel Pump - Burdi Motorworks.

I hope this helps you fix your Mercedes Benz fuel pump sound problem. If you have any other questions, please feel free to ask me. 😊