Auto Black Underground

First of all, some compressors just wear out. You put a bazillion miles on them and their time is just simply up. However, the majority of the time the compressor fails is from lack of proper maintenance or the result of poor service procedures. Let's remember that most of the A/C compressors that Mercedes Benz have used do not carry their own on board oil supply. The refrigerant oil is delivered throughout the system via the refrigerant. Just as you would not run your engine without oil people attempt to run the air conditioning compressors without oil. How does this happen? Underneath ...

The heating, ventilation, and A/C (HVAC) system in the M-Class has semiautomatic temperature regulation and manual control over the air source and distribution. The temperature control is achieved without the use of a heater valve, also called mono valve in other models. The M-Class heater core is thus always hot, at about 87 deg C. Air Conditioning Switch The On/Off switch connects to the A/C control module (N19), which, through the All Activity Module (N10) controls the activation of the air conditioning compressor clutch. The A/C compressor operates only when the engine is running and the blower motor is switched on. The AAM (N10) also uses other information from the CAN to choose when to operate the compressor clutch, i.e. engine temperature. Air Temperature Control An NTC resistor behind a grille below the low range switch senses the in-cabin temperature. A hose connects it to the main climate box thus drawing air across the sensor. Air temperature is ...

Mercedes Benz has always been associated with rich and famous. They are popular for incorporating finest engineering and craftsmanship. Thus, results in high manufacturing costs. Air conditioning system equipped in Mercedes Benz is one of the major factors for comfortable and pleasurable ride. There are five major components that plays key role in the effective performance of the Mercedes Benz AC system. They are Mercedes Benz compressor, Mercedes Benz refrigerant, Mercedes Benz condenser, Mercedes Benz expansion valve and Mercedes Benz drier or evaporator. During air conditioning process, refrigerant is placed under pressure by the compressor and sent to condensing coils. These coils are usually present in front of radiator. After compression, gas heats up a lot. Later, gas condenses into liquid and this change turn it hotter. Now, lots of heat is lost by refrigerant followed by sending liquid to evaporator. On the high side of AC system, Mercedes Benz receiver drier or Accumulator ...