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Mercedes of the S-class W2021993-2000 of releaseRepair and operation of the car |
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Mercedes W202 + 1.2. General information + 2. Maintenance + 3. Engines + 4. Lubrication system + 5. Cooling system + 6. Heating, ventilation + 7. System of ignition - 8. Fuel system + 8.1.1. Introduction - 8.2. System of injection of petrol engines 8.2.1.1. Principle of work of PMS 8.2.1.2. Principle of work of HFM 8.2.2. Self-diagnosing of a condition of system of ignition and injection of fuel 8.2.3. Air flowmeter 8.2.4. Thermal sensor of cooling liquid 8.2.5. The sensor of the soaked-up air 8.2.6. System of vacuum pipelines 8.2.7. The fuel distributor with valvate nozzles 8.2.8. Valvate nozzles 8.2.9. Oxygen sensor (lambda probe) 8.2.10. Diagnostics of malfunctions of system of injection of gasoline 8.2.11. What should be known to the owner of the car with the injector engine 8.2.12. Turbo doctor + 8.3. System of injection and power supply of diesel engines + 8.4. System of production of exhaust gases + 9. Transmission + 10. Running gear + 11. Steering + 12. Brake system + 13. Body + 14. Electric equipment + 14.2. Electrical circuitries |
8.2.4. Thermal sensor of cooling liquid
The thermal sensor takes temperature to cooling liquid and transmits electric signals to the actuation device. The sensor is equipped with a NTC element (NTC – negative temperature coefficient) which reduces the resistance at increase in temperature. At malfunction of the sensor the actuation device chooses the equivalent size which corresponds to temperature of cooling liquid at the engine heated to working temperature. At low external temperatures and the cold engine it leads to difficulties at launch of the engine and to its work out of the modes. The thermal sensor is in the thermostat case. Removal
Check
Installation
Thermal sensor resistance
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