If you too have already experienced a grinding noise on Mercedes Classe A 4, you must have wondering the same questions as all Mercedes Classe A 4 owners. We are rarely reassured when a grinding noise comes out on our car. As we are conscious of your fears and questions, we have decided to prepare this article in order to assist you in and ease your investigation for a solution to your problem. To do this, first we will see what the sources of a grinding noise on Mercedes Classe A 4 are when you turn the wheel, then those of a grinding noise when you brake, if you have a grinding noise on Mercedes Classe A 4 that originates from the shock absorbers and to finish from one of your doors.grinding-noise-mercedes-classe-a-4

I listen to a grinding noise on Mercedes Classe A 4 every time I turn the wheel

First, we will check out the grinding noises on Mercedes Classe A 4 that arise once you turn the wheel of your car. Here are the main causes for this:

  • Hydraulic system

    • If you hear grinding noises on your Mercedes Classe A 4 every time you turn the wheels, it may be relating to the hydraulic system of your car that allows you to run the entire power steering part. In this case, the main point to verify is the power steering fluid level, which if below the normal level could be a signal of a leak of the device. In this case, take into account to redo the level and verify it frequently. If the problem lasts, go to your technician.

  • Bearings

    • “A grinding noise on Mercedes Classe A 4 every time I turn the wheels of my car” can also result from premature wear of your bearings. In fact, bearings play an essential role in the good behaviour of the car when driving. When you turn at low speed and bring the steering to a stop, the pressure on the bearings is higher than at high speed, it can generate sounds close to a grinding if they are worn. Remember to verify their state.

  • Steering pump

    • Finally, a grinding noise on Mercedes Classe A 4 every time I turn may be associated with a tired steering pump power steering pump. The goal of this organ is to run the steering belt, which will allow you to take advantage of the power steering. If the pump is tired, its operation will be impaired and squeaks may surface between it and the belt. Keep in mind to verify that it is working properly.

    If despite these different solutions you continue to hear a grinding noise on Mercedes Classe A 4 when turning your steering wheel, we have created a complete article on this subject that can support you discover the origin.

    I notice a grinding noise on Mercedes Classe A 4 every time braking

    If you listen to a grinding noise from the brakes of your Mercedes Classe A 4, it is highly possible that it will be associated with brake pads at the end of their life, actually, the function of the pads is to act as a buffer during braking and they will therefore naturally wear out over time. Each manufacturer gives an average range in kilometres for pads, but based on your driving style and route, this may vary. Take off the wheels in question and verify the wear indicator on them. If they are dead they will have to be swapped quickly because they will quickly damage your discs.
    If, despite check, your grinding noise on Mercedes Classe A 4 does come from your brakes but is not relating to the pads, verify this content page to find out the other possible origins of brake noises on Mercedes Classe A 4.

    I listen to a grinding noise on Mercedes Classe A 4 at the shock absorbers

    If you are in the scenario where you establish the grinding noise on Mercedes Classe A 4 as coming from the damping part of your car, whether you are driving over a retarder, on a bumpy road, or simply every time you change direction and the vehicle’s mass is swung from one side to the other. In such a case, there are several causes that can explain this noise. In fact, you will have to verify some points, here they are:

    • You have an oil leak at a shock absorber, it is up to you to verify that there is no oil leaking from your shock absorbers.
    • You may encounter abnormal wear and tear on one of the seals. This would cause an oil leak
    • Finally you can have one of your shock absorber cylinders deformed, which will make a grinding noise on Mercedes Classe A 4

    at each compression.
    Once you have tested all these points, you should have found the origin of your issue, go to your motor mechanic to fix the faulty part. If you have not located the origin of your problem, we recommend that you look at this content page which discusses all possible origins of shock absorber noise on Mercedes Classe A 4.

    I listen to a grinding noise on Mercedes Classe A 4 at a door

    If that’s not enough, don’t hesitate to look at this complete content page on door sounds on Mercedes Classe A 4.
    It is possible, based on the kind of of noise you know, that the hinge of your door is at the origin of these noises. If this is the case, you will have to verify it by opening your door and examining that the grinding noise on your Mercedes Classe A 4 comes from a hinge that is too dry. To solve this problem, first try to grease the hinge, in most cases this is enough to solve your problem. If that’s not enough, don’t hesitate to read this complete content page on door sounds on Mercedes Classe A 4.