Hearing noises from your car very often is never comfortable, so hearing air conditioning noises on your Mercedes Classe C can be a concern. This warning sign may be a sign of a minor problem as well as a warning of a much significant service to come. In any situation, it is very important to investigate its source and take the necessary measures to correct the problem, it is with this in mind that we decided to prepare this document to support you understand it better. We will first look at the possible reasons for noise in the ventilation of your Mercedes Classe C. Then, in a second part, we will concentrate on the noises relating to the air conditioning of your car.air-conditioning-noisemercedes-classe-c

Noise air conditioning Mercedes Classe C : most regular origin coming from general ventilation

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

Hearing a air conditioning noise on Mercedes Classe C is never satisfying, and can make your journeys specifically 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 circumstance, having a dull noise from the air conditioning of your Mercedes Classe C is a concern that must be dealt with. This noise is very often connected to a worn or dirty fan motor. To make certain that the problem is caused by the ventilation, we advise that you open the ventilation of the problem region and check the condition of the fan, possibly grease it first, and if this is not sufficient, it will most likely have to be substituted.

I perceive an heater fan noise clicking Mercedes Classe C

We will now look at the clicking noises you may perceive from your ventilation. A clicking noise from Mercedes Classe C heater fan is often a consequence of a duct or fan clogged by a foreign body. This noise is expected to enhance as the air flow in the circuit raises up. Bear in mind to check 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 problem is persistant, take your car to your mechanic.

I read an hissing heater fan noise Mercedes Classe C

Finally, if you experience a whistling noise in the ventilation of your Mercedes Classe C, it may be that the origins of it is linked to a fan that has shifted or is starting to dry . In any situation, you will have to check out the fan in question to visually check its condition. The easiest solution is to open the ventilation circuit again, and rotate 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 alternative is to change it. If you have a whistling noise but are not sure if it is linked to ventilation, we encourage you to check with this document about front end noise on Mercedes Classe C to discover its origin.

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

Slamming noise air conditioning Mercedes Classe C

We will now check out the precise part of the air conditioning side of your heater fans and the source of the noise it can emit. 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. In contrast, if you perceive a clicking noise or air conditioning scrap metal on your regular Mercedes Classe C, you will have to get worried in this situation. Indeed, it can state an air conditioning compressor clutch, or compressor itself that needs to be swapped. So have your mechanic check its proper operation.

Pshhh noise / hissing air conditioning Mercedes Classe C

If you experience pshhhh or whistling noise on the air condition side of your heater fan on Mercedes Classe C, but in cooling mode, you have two possibilities to explain this problem. Indeed, at first, the most likely answer is that your air conditioning equipment is running out of gas, to check it you should experience 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 C and the problem should be fixed. On the other hand, you may experience a system leak and this psshhh or hiss may be linked to the gas escaping from the system. You can test the leak by integrating a tracer into your air conditioning system and monitoring for leaks, or more easily take your car to your mechanic.