Hearing noises from your car quite often is never comfortable, so hearing air conditioning noises on your Mercedes Classe S can be a matter. This indicator may be a sign of a minor problem as well as a warning of a much bigger repair to come. In any circumstance, it is very important to examine its source and take the required actions to solve the issue, it is with this in mind that we desired to create this document to support you understand it better. We will first look at the plausible causes for noise in the ventilation of your Mercedes Classe S. Then, in a second part, we will look into the noises related to the air conditioning of your car.air-conditioning-noisemercedes-classe-s

Noise air conditioning Mercedes Classe S : most common origin coming from general ventilation

Loud noise or roar from ventilation or fan of your Mercedes Classe S

Hearing a air conditioning noise on Mercedes Classe S is never pleasing, and can make your trips especially unpleasant. Ventilation is important whether it is in winter to warm up or defog or to cool down the car during the summer. In any case, having a loud noise from the air conditioning of your Mercedes Classe S is a matter that must be dealt with. This noise is very often connected with a worn or dirty fan motor. To make certain that the issue is triggered by the ventilation, we encourage that you open the ventilation of the issue location and examine the state of the fan, possibly grease it first, and if this is not enough, it will certainly have to be replaced.

I perceive an heater fan noise like a click Mercedes Classe S

We will now check out the clicking noises you may perceive from your ventilation. A clicking noise from Mercedes Classe S heater fan is often the result of a duct or fan blocked by a foreign body. This noise is supposed to build up as the air flow in the circuit raises. Bear in mind to examine the cleanliness of your air inlets at the top of your hood, for example. You will then have to open the conduit in question and find the foreign body. If the issue remains, take your car to your mechanic.

I listen an hissing heater fan noise Mercedes Classe S

Finally, if you experience a whistling noise in the ventilation of your Mercedes Classe S, it may be that the origins of it is relating to a fan that has shifted or is starting to dry . In any circumstance, you will need to examine the fan in question to visually examine its state. The easiest method is to open the ventilation circuit again, and turn on the circuit while you are examining its proper action, you can try to grease it to limit this noise, but it is very likely that the final solution is to change it. If you have a whistling noise but are not sure if it is relating to ventilation, we suggest you to browse this content about front end noise on Mercedes Classe S to discover its origin.

I perceive an heater fan Mercedes Classe S noise : specific air conditioning

Slamming noise air conditioning Mercedes Classe S

We will now look at the precise part of the air conditioning side of your heater fans and the origins of the noise it can make. A clicking noise in your air conditioning, if it is brief and when you start it only represents a good functioning of your air conditioning compressor which lights up, this noise can be loud. However, if you perceive a clicking noise or air conditioning scrap metal on your regular Mercedes Classe S, you will have to be concerned in this circumstance. Indeed, it can announce an air conditioning compressor clutch, or compressor itself that needs to be swapped. So have your repair shop examine its proper operation.

Pshhh noise / hissing air conditioning Mercedes Classe S

If you fell pshhhh or whistling noise on the air condition side of your heater fan on Mercedes Classe S, but in cooling mode, you have two alternatives to explicate this issue. Indeed, at first, the most likely cause is that your air conditioning system is running out of gas, to examine it you should feel that the cold it has to emit is no longer as cold as before, if so, have your air conditioning system charged on your Mercedes Classe S and the issue should be fixed. On the other hand, you may encounter a system leak and this psshhh or hiss may be relating to the gas escaping from the device. You can check out the leak by integrating a tracer into your air conditioning system and monitoring for leaks, or more easily take your car to your repair shop.