Is Your Mercedes Making a Whining Noise? Top Reasons Explained

Unusual sounds from cars have become like a common issue in many cars. Even luxury cars like Mercedes come up with such problem. So in Mercedes, lack of maintenance and other external factors cause strange noises. These noises also vary on their loudness and frequency and also their causes. Having such unusual noises cannot make you have a peaceful ride. There is also chances to have a serious problems afterwards if the noise is ignored. So it would be better if you get it cured soon, but to do that you have to know all the causes of such sound. In this article, you will know about causes of whining sound in Mercedes.

What causes whining noise in Mercedes?

Basically a sound like whining is I produced if there is some issue in transmission, power steering pump, failing of bearings, alternator, brake pads, idler pulley, etc. Here are some common causes of whining noise in Mercedes.

Lack of power steering fluid or faulty pump

The power steering fluid makes the steering easier with more convenience. It lubricates the power steering and makes the controlling of the car easier. But if the fluid is low, then moving the steering becomes a little harder with a whining sound. If the power steering pump is faulty or worn, then it would not able to pump the fluid and would also make a whining sound while operating.

Faulty water pump

If the water pump is faulty then would not be able to pump enough coolant to the engine. Lack of coolant can make various parts to be overheated. They would not be able to operate smoothly and produce whining noise. Water pumps very commonly because whining sound.

Bad brake pads

The brake pads apply frictional force to the rotor attached to the wheel. But if the brake pads used in your car are not good, then it would cause a whining sound when the brakes are pressed.

Transmission filter is clogged

A bad transmission filter are worn or clogged and they fail to carry out their work of blocking the impurities and allowing the fluid to pass through them. A clogged transmission filter would not allow the fluid to enter into the pump.

Faulty bearings in alternator.

The bearings in alternator can get a wear due to which turning of alternator shaft produce whining noise. It makes the running of alternator rough that produces whining sound. A bad bearing also affects the performance of the alternator.

Idler pulley

On aging and lack of care can make the bearings of the pulley to wear, leading to production of whining sounds when it rotates in the belt. Idler pulley is one of the common culprits to cause a whining sound.

How to stop such noise?

Diagnosing the problem is good, but preventing these issues is lot better. If you have whining sounds in your Mercedes, then you have to maintain the can regularly to avoid such problems in your car.

To diagnose the problem, you have to know the exact cause, and to find that you have to know the exact location from where the noise is occurring. To locate the sound, you can use a stethoscope on the car or a long screw driver after opening the hood of the car. Switch on the car and check from where exactly the noise is coming. Once to know the location, you have to inspect inside it and replace the faulty part. If would be easier if you know all the possible causes stated in this article.

Conclusion

Lack of maintenance have become one of the main cause of many problems including strange noises. So after fixing the issue, keep in mind to maintain your car regularly. In diagnosis, the complex jobs are to be left for the professionals or a trusted mechanic.

Fifth Gear Automotive is one of the most sought-after high-end cars auto repair and maintenance shop located in Lewisville and McKinney. We are having years of experience in looking after a host of luxury cars including both American & European cars.