S-class W202 Mercedes
1993-2000 of release
Repair and car operation
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
- 4. Greasing system
4.2. Specification of engine oil
4.3. Scope viscosity oils / class
4.4. Consumption of oil
4.5. Contour of circulation of oil (DD)
4.6. Oil reduktsionny valve
+ 4.7. Oil pallet
4.8. Indicator of level of oil
4.9. The heat exchanger oil - / cooling liquid
4.10. Diagnostics of malfunctions in a contour of circulation of oil
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electroschemes
PETROL AND DIESEL ENGINES
The indicator of level of oil consists of the sensor of level of oil which is established on a spuskny stopper in the oil pallet, and a control lamp on the dashboard. The indicator supervises oil level in the oil pallet, since oil +60 temperature ° C. As soon as ignition joins, the control lamp burns for functional control and dies away after the beginning of rotation of the engine.
Oil level in the oil pallet is reproduced by means of a float (358). At low level of oil (in the field of the bottom mark masloizmeritelny щупа) by means of a magnet (359) in a float opens геркон. Thanks to it electronics in the communication panel receives a signal, and the lamp lights up.
At the lowered level of oil, depending on a driving manner, at first the control lamp for a while lights up, and then burns constantly.
That at various road situations, for example, at sharp turns to avoid false alarm signals, in the electronic scheme the delay line is built in. She allows to light up to a control lamp only after the alarm system of low level of oil during 60 seconds.
For an exception of false indication at the cold engine (dense oil slowly pours out in the oil pallet) the sensor of level of oil is equipped with a bimetallic latching disk (352). It prevents work empty the poplavkovy chamber through a drain opening (b) at low temperatures.
The bimetallic latching disk opens at temperature about +60 ° C and is closed at temperature about +30 ° by C.
At oil replacement the poplavkovy chamber is filled with oil through a ventilating opening (and). It excludes the subsequent false indication. The indicator of level of oil is established so that the control lamp lit up shortly before achievement of level of "min" on masloizmeritelny щупе (a safety reserve). Thanks to it it is possible to fill in oil not at once, and at the next opportunity, for example, when filling.