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| | | Mercedes-Benz |  | W163 | | Introduction | | Controls and receptions of safe operation | | Current care and maintenance | | The active warning system Maturity planned TO (ASSYST) | | The routine maintenance schedule | | General information about the settings, | | Check fluid level, leakage control | | Checking the condition of tires and pressure in them, the designation of tires and wheel rims, wheel rotation | | Replacing the motor oil and oil filter | | Check the brake system | | Check the power supply system, replacement of the fuel filter | | Check and replacement of hoses of an impellent compartment, localization of leaks | | Checking the multirebernyh accessory drive belt | | Check the functioning of the cooling system and frost coolant fluid replacement | | Checking the exhaust system | | Replacement and check of level ATF, AT filter replacement | | Visual check of tightness automatic transmission | | Checking the suspension components and steering | | Checking the status of anther drive shafts | | Check the air conditioning system | | Grease limiters door locks and cylinders | | Visual inspection of safety belt and airbag unit | | Verifying the headlights and horn | | Check and replace wiper blades | | Checking the status of the battery, care it and gymnastics | | Replacing the cabin filter | | Replacing brake fluid | |  | Check and replacement of spark plugs, check the status of high-voltage wires (petrol models) | | Engine | | System of cooling, heating and air conditioner | | The power supply system and exhaust | | Systems of an electric motor | | Manual box of a gear change | | The transmission automatically processed | | Transmission Line | | Brakes and auxiliary systems | | Suspension and steering | | Body | |  | Onboard electric | | | |
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Check the air conditioning system
|  | The air conditioning system is under high pressure. Do not attempt to loosen any connections or removing parts of the system without first discharging the system. The refrigerant must be removed from the system in a specialized workshop (the type of refrigerant listed in the specifications). Even after the discharge of the system when performing any operations with the system use goggles. |
- For the system to function properly the air conditioning, you must regularly conduct the following operations:
a) Check the condition of the drive belt. Upon detection of excessive wear or damage to the belt must be replaced (see. Section Checking multirebernyh accessory drive belt).
b) Check the condition of the pipes of the system. Inspect them in search of cracks, blisters and seals. Inspect couplings are also looking for any signs of leaks. If you notice signs of wear, damage or leaks, replace the damaged pipeline.
c) Inspect the surface of the heat exchanger located in front of the radiator cooling system. If contamination is detected edges, insects, etc. Clean the surface of the heat exchanger a special brush or compressed air.
| When using compressed air, wear protective glasses! |
d) Check that the evaporator drain tube is not clogged. When the air conditioner is out of the tube should ooze pure water. To check the purity of the evaporator tube sheet under the paper and turn on the air conditioner. After a certain period of time on the sheet should appear traces of water. - The air conditioner at least once a month (even in winter). If the air conditioner is not used for a long time, this may lead to seal failure.
- Due to the complexity of the system diagnosis and repair should be performed by a workshop.
- The most likely cause of the decrease in the efficiency of the system is the lack of refrigerant. If you have noticed a sharp decline in the efficiency of the system, check the amount of refrigerant in the system as follows.
- Warm up the engine to operating temperature.
- Dial to select the lowest supply air temperature. Turn biggest fan speed. Open the door (to the system is not switched off after reaching the desired temperature in the cabin).
- When the compressor clutch it should produce an audible click, and the central portion of the sleeve - rotate. Feel the inlet and outlet pipe of the compressor. One of them should be cold, and the other - hot. If you do not feel the difference, the system is faulty. This may be caused by lack of coolant, and anything else. To solve the problem, contact the service station.
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