| Cooling system |
Common parameters |
| Cooling system | Closed, water pump, thermostat, radiator fan (electric or viscous clutch) and separately installed expansion tank |
| The volume of | See. Specifications to the Head Current leaving and service |
| The composition of the coolant (antifreeze proportion of coolant to ensure frost) |
| to -37 ?� C | 50% |
| to -45 ?� C | 55% |
| System pressure | Approximately 1.4 bar (the exact amount is indicated on the cover of the expansion tank). |
| Thermostat |
| The valve stroke, mm | at least 8 |
| Valve activation temperature, ?� C |
| Home opener | 85 ÷ 89 |
| Full opening | 102 |
| The cover of the cooling system path |
| Petrol models | On models petrol models cover cooling system is not subject to testing in the case of a failure should be replaced |
| Diesel models (code 140/200 cover) |
| The depth of the vacuum of the vacuum valve, bar | 0.1 |
| Pressure relief valve opening, bar |
| The first step (coolant temperature 130/134 ?� C) | 14 |
| The second stage (coolant temperature 137/143 ?� C) | 20 |
| Pressure test cap, bar | 1.4 (cover must keep this pressure for at least 2 minutes) |
| The air conditioning system |
| The type of refrigerant | R134a |
| The amount of refrigerant g | 750 |
| Type of refrigerator oil | Synthetic PAG |
| Number of compressor oil, top up if: |
| Replacing the evaporator, see 3 | 40 |
| Replacing the condenser, see 3 | 20 |
| Replace the receiver-dryer cm 3 | 10 |
| Replace the suction line, see 3 | 20 |
| Replacement of pressure line, see 3 | 20 |
| Replace the compressor, see 3 | 20 |
| Leak detection, see 3 | 20 |
| After the sudden emptying system, see 3 | 40 |
| Efforts of a tightening of carving connections, Nanometer |
| Cooling system |
| M111 |
Bolts thermostat housing |
| 10 |
| 25 |
| Flare nut cooling line ATF to a radiator (model AT) | 20 |
| Hollow screw couplings | 20 |
| Bolt impeller to the viscous clutch | 10 |
| Bolt viscous clutch to the bearing housing (tightened by means of a special device) | 40 |
| Bolts of fastening of the water pump to the crankcase |
| M6 | 10 |
| M8 | 25 |
| Bolt water pump pulley | 10 |
| M112 / 113 |
| Thermostat housing bolts (M6) | 10 |
| Flare nut cooling line ATF to the radiator | 20 |
| Hollow screw couplings on the cooler (M12x1.5) | thirty |
| Bolt impeller to the viscous clutch | 10 |
| Bolt viscous clutch to the bearing housing (tightened by means of a special device) | 40 |
| Tighten the screws on the generator | 42 |
| Bolts damper tensioner accessory drive belt |
| Tensioner | 25 |
| To the water pump | 35 |
| Self-tapping screws of the water pump to timing cover |
| M6 |
| 14 |
| 10 |
| M8 |
| 35 |
| 25 |
| Bolt water pump pulley | 10 |
| M612 |
| Tighten the screws on the trim panel of the cylinder head cover | 10 |
| Tighten the screws on the trim panel diffusers | 10 |
| Thermostat housing bolts (M6) | 9 |
| Hollow screw couplings on the heat sink (line leak oil) | thirty |
| Bolts of fastening of the water pump to timing cover |
| M6 | 14 |
| M8 | 20 |
| Bolt water pump pulley | 35 |
| M628 |
| Thermostat housing bolts (M6) | 9 |
| Flare nut cooling line ATF to the oil cooler | 25 |
| Hollow screw couplings line cooling ATF to the oil cooler | 25 |
| Hollow screw couplings on the heat sink (line leak oil) | thirty |
| Bolts of fastening of the water pump to the crankcase | 10 |
| Bolt water pump pulley | 25 |
| Heating / ventilation / air conditioning |
| Nuts of fastening of the instrument panel to the bulkhead of the engine compartment | 8 |
| Bolts to dash pillar | 19 |
| Bolts dash to the transmission tunnel | thirty |
| Flare Nut tube to the expansion valve system K / V | 10 |
| Bolt refrigeration line to the receiver | 10 |
| Bolt refrigeration line to the condenser | 20 |
| Bolt the expansion valve to the evaporator heat exchanger | 10 |
All models are covered in this manual are equipped with car running at a pressure of the engine cooling system with thermostatically controlled circulation of the working fluid. A water pump mounted on the engine block and provides pumping coolant through the cooling path of the latter. The liquid flow washes the area of location of each of the cylinders in the block, and then sent to the rear of the engine. Paved in molding block and the cylinder head cooling channels provide intensive cooling of the intake and exhaust ports, areas of installation of spark plugs and exhaust valve guides.
Since the start of the engine cooling system passes through three modes of operation: the first stage until the water temperature rises above a certain value, it circulates on a small circle of the working circuit which eliminated the radiator. With further heating of the fluid opens poppet valve included in the system path voskozapolnennogo thermostat and connected to the circuit of a radiator. Further, the coolant temperature reaches another reference value, the sensor-activated heat-sensitive switch with an activation of the cooling fan, wherein the additional injected air flow greatly increases the efficiency of the heat exchanger of the radiator.
The cooling system has a sealed structure and covered with a lid radiator capable of withstanding a certain excess pressure, which increases the boiling point of the coolant and, accordingly, the efficiency of heat removal through the radiator. When excess internal pressure in the system a certain value, there is an excess flow of coolant through the connecting (overflow) tube into the surge tank. As the cooling system fluid automatically returns from the tank into the radiator.
Adding coolant in the system is made through the neck of the expansion tank (see chap. Power supply system and exhaust), which at the same time also serves as the receiver accumulates displaced by excess fluid from the radiator.
Due to these design features, the system is called closed cooling as it excludes any functional loss of working heat.
The heating system consists of fans and heat exchangers arranged in blocks of front and rear portions of the cabin. Hot coolant passes through the heat exchangers. When you move the control handle mode heater, located in the Control Panel, open the valve and the hot air begins to flow into the interior of the vehicle. If you turn on the heater fan, air is supplied to the interior force.
Outdoor air before getting into the room, passed through a special filter in the carburetor settles the main share of the dust particles. Replacing the cabin filter should be done on a regular basis in accordance with the schedule of routine maintenance of the car (see chap. Power supply system and exhaust). Violation of the cross filter results in a lower performance operation of heating / ventilation / air conditioning.
Air distribution system by means of ventilation flaps. You can switch modes of air circulation. Drive through the servo valves osuschestlvyaetsya.
