Mercedes S-class W202

1993-2000 of release

Repair and car operation


Mercedes W202
+ 1.2. The general data
+ 2. Maintenance service
+ 3. Engines
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
- 7. Ignition system
   7.2. Safety precautions at repair of electronic system of ignition
   7.3. Ignition coils
   + 7.4. Spark plugs
   - 7.5. The device of a preliminary warming up of a diesel engine
      - 7.5.1. Check of the device of a preliminary warming up
         7.5.1.1. A lamp накаливания
         7.5.1.2. An anchor
         7.5.1.3. Candles накаливания
         7.5.1.4. The temperature gauge of a cooling liquid
         7.5.1.5. A temperature-sensitive element of soaked up air
      7.5.2. Device self-diagnostics
+ 8. Fuel system
+ 9. Transmission
+ 10. A running gear
+ 11. A steering
+ 12. Brake system
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes












7.5.1.5. A temperature-sensitive element of soaked up air
THE GENERAL DATA

The temperature-sensitive element takes temperature of soaked up air. This size together with a signal of the gauge of pressure of an inlet gas pipeline serves for the actuation device as a measure of quantity of soaked up air. A temperature-sensitive element of soaked up air is the NTC-resistor (NTC = negative temperature factor) which resistance decreases at rise in temperature.

THE ENGINE IN VOLUME OF 2,2/2,5 L

Removal

PERFORMANCE ORDER
Remove a temperature-sensitive element together with the tip (В17х1), for this purpose compress both lateral fixing clips (1).

Check
PERFORMANCE ORDER
1. Disconnect штеккер.
2. Check up an ohmmeter resistance of a temperature-sensitive element at various temperatures. The measured size is perfectly in order, if it is in admission limits + 5 % (Resistance of a temperature-sensitive element see the table).
3. If at measurements the temperature-sensitive element does not reach preset values it is necessary to replace it.

Installation

PERFORMANCE ORDER
1. Spread cable штеккер (socket).
2. Check up on defects or porosity a sealing ring of a round profile, if necessary replace it.
3. Insert a temperature-sensitive element together with a sealing ring of a round profile.
4. Squeeze out fixing clips outside until it distinctly (on hearing) will be fixed.

Resistance of a temperature-sensitive element

TEMPERATURE
RESISTANCE
20 ° WITH
9670 Ohm
30 ° WITH
6060 Ohm
40 ° WITH
3900 Ohm
50 ° WITH
2600 Ohm
60 ° WITH
1760 Ohm
70 ° WITH
1220 Ohm
80 ° WITH
860 Ohm
90 ° WITH
620 Ohm
100 ° WITH
185 Ohm