2.4.2. Combination of devices, measuring instruments and control lamps and light indicators
Design of a combination of devices
Combination of devices
The design of a combination of devices is presented on an illustration.
Instrumentations
Activation of a combination of devices
Activation of a combination of devices is made when opening a door, by pressing one of built in in a combination on the right and to the left of a speedometer of devices of push-button switches, and also at inclusion ignition/opening of a driver's door. Shutdown of a board happens automatically.
Adjustment of intensity of illumination of devices
Adjustment of intensity of illumination of devices (at the included running fires - see the Section Governing bodies and the equipment of salon) is made by means of the turn-push handle which is built in in an instrument guard at the left under the dial of a speedometer, - by means of the same handle activation of a combination of devices (see above) and switching of the modes of functioning of the digital display / dumping of the indication of the counter of the current distance in kilometers which is built in a speedometer can be made (see below).
The combined measuring instrument of a reserve of fuel/temperature of cooling liquid
The measuring instrument is in the left corner of a combination of devices and is equipped with two indexes, one of which (right) registers the fuel reserve remaining in a tank the second, (left) serves for indication of value of temperature of cooling liquid of the engine. In the lower part of the dial of the measuring instrument the display of a conclusion of indications of temperature of external air is built in.
Fuel reserve measuring instrument
The error of indications of the measuring instrument of a reserve of fuel is minimum when the car holds strictly horizontal position. At movement of the car along twisting or hilly roads the error of the device increases. Functioning of the measuring instrument does not depend on position of the ignition key. The tag 1/1 corresponds to a condition of full gas station, 0 - to an empty tank. The control lamp which is built in the measuring instrument dial with the image of the gas station informs the driver on need at the first opportunity to make refueling of the car.
Measuring instrument of temperature of cooling liquid
In normal conditions temperature of boiling of the cooling liquid (antifreeze with the anticorrosive additives added to it) filled to the highway of system calculated on functioning with an excessive pressure makes about 130 °C. Under trying conditions operation, for example, in very hot weather or at long rise uphill the arrow of the index can rise to the top red mark in a scale. If temperature of the engine increased so that the arrow of the index comes into limits of red range of a scale of the measuring instrument, it is necessary to stop immediately the movement, to move down on a roadside, to park and make check of a condition of the cooling system regarding clarification of the reasons of an overheat of the engine (see the Head of the Power supply system and production of the fulfilled gases).
Indicator of temperature of external air
The display of indication of indications of the sensor of temperature of external air is built in in the dial of the left combined measuring instrument of a combination of devices. Temperature is defined in degrees Celsius (°C).
Change of indications of the display after departure from a garage happens to the certain delay caused by adaptation of the sensor.
Besides, the compulsory delay of increase of indications of the display according to increase in ambient temperature at a temperature of cooling liquid of the engine is provided over 60 °C, - that allows to prevent aimings from the hot engine during stops and at the movement of the car with small speeds.
Speedometer
The speedometer is built in in the central part of a combination of devices and shows the speed of the movement of the car in km/h.
Display of indications of the odometer/counter of the current run / indicator of level of motive oil/term of approach planned THAT
The display of indications of the odometer, the counter of the current run and the indicator of term of approach planned THAT is built in in the speedometer dial. Dumping of indications of the counter of the current run / switching of the modes of the display is made by means of the speedometer of the push-button switch located at the left under the dial (see in the same place).
Odometer and counter of a distance in kilometers of the current run
The odometer registers the general vehicle mileage from the moment of input it in operation, the dumped counter allows to trace the current run of the car from the moment of the last dumping of the indications (in kilometers). Switching of the modes the odometer/counter is made by means of the button located to the left of a speedometer.
For dumping of indications of the counter it is necessary to activate a combination of devices (see above), then to press the button of dumping and to hold it pressed within about 1 second.
Indicator of level of motive oil
When checking level of motive oil the car has to be in horizontal position. Removal of indications should be made about 5 minutes later after a stop of the engine which is warmed up up to the normal working temperature.
Turn a key in the ignition lock in situation 2 and wait for emergence on the indication display screen
or
If the correct measurement of level is not possible, indication
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In case of need the level of oil can be checked manually on the measuring probe (see the Head of the Power supply system and production of the fulfilled gases). |
Indicator of term of approach planned THAT (TO-Assyst system)
See the Section Active system of the warning of the term of approach planned THAT (ASSYST).
Tachometer
The tachometer is to the right of a speedometer and shows the frequency of rotation of a bent shaft of the engine in thousands of revolutions per minute (the indication of an arrow should be multiplied on 100). In order to avoid an exit of the engine it is out of operation forbidden to exceed the most admissible frequency of rotation of a bent shaft (the arrow of a tachometer never has to come into a red zone of a scale).
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For the purpose of protection of the engine at achievement turns of a bent shaft of range of red marking carry out a fuel supply cut-off. |
Hours
The dial of onboard hours is built in in the tachometer dial. The regulator of installation of indications of hours is located under the tachometer dial at the left (see in the same place). Rotation of the regulator extended from the panel clockwise leads to increase in indications, against - to reduction.
Control lamps and light indicators
The whole complex of control lamps and indicators by means of which the driver obtains important information on serviceability/violation functioning of the main units and systems of the car is built in assembly of a combination of devices of the car. The scheme of an arrangement of control lamps on an instrument guard is submitted on an illustration. Below information on the principle of functioning of each of the provided light indicators separately is offered.
The list of the devices of control lamps and light indicators which are a part of a combination
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Precautionary control lamp of antiprobuksovochny (ETS) and antistrange (ESP) of systems |
This control lamp is quickly activated at inclusion of ignition and has to go out right after implementation of start of the engine. Compulsory shutdown of antistrange (ESP) system is followed by activation of this control lamp (see the Sections Traction control system (4-ETS) and Electronic antistrange system (ESP)). Activation of a lamp in the flashing mode during the movement of the car warns the driver that wheels of the car are on a limit of coupling with a paving and it is necessary to reduce speed to safe level.
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At towage of the car with the back wheels which are torn off from the earth, and also when checking serviceability of functioning of brake mechanisms at the stand the engine has to be killed since otherwise the active braking influence of the ESP system can lead to failure of brake mechanisms of back wheels! |
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Control lamp of failures of the amplifier of emergency brake application (BAS)/antistrange of system (ESP) |
The control lamp is quickly activated at inclusion of ignition and has to go out right after implementation of start of the engine. The refusal of a lamp of shutdown, and also its activation during the movement demonstrates violation of serviceability of functioning of the BAS or ESP system.
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At failure of the system of BAS the brake system of the car continues to function in the usual (not strengthened) mode. |
For shutdown working at the working engine of a control lamp after shutdown of onboard food it is necessary to turn a steering wheel from an emphasis against the stop. When falling level of voltage below 10 V there is an automatic shutdown of the BAS system. Followed by operation of this control lamp. Return of system to the working condition happens also automatically at restoration of level of tension, - the lamp has to go out.
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Control lamp of the traction control system (4-ETS) |
The control lamp is quickly activated at inclusion of ignition and has to go out right after implementation of start of the engine. The refusal of a lamp of shutdown, and also its activation during the movement demonstrates violation of serviceability of functioning of system 4-ETS, - the car should be driven away immediately on HUNDRED companies Mercedes-Benz for performing diagnostics and performance of necessary recovery repair.
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At high load of brake mechanisms there is an automatic short-term shutdown of system 4-ETS for the purpose of prevention of an overheat of brakes, - this shutdown is followed by activation of a control lamp. |
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Control lamp of system of anti-blocking of brakes of ABS |
This control lamp serves for control of serviceability of functioning of ABS, quickly works at inclusion of ignition and has to die away several seconds later after implementation of start of the engine. The refusal of a lamp of shutdown, and also its activation during the movement demonstrates violation of serviceability of functioning of ABS, - the car should be driven away immediately on HUNDRED companies Mercedes-Benz for performing diagnostics and performance of necessary recovery repair.
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Along with ABS also systems 4-ETS, BAS and ESP are disconnected) that has to be confirmed by operation of the corresponding control lamps (see above). |
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Control lamp of wear of brake shoes |
The control lamp is quickly activated at inclusion of ignition and has to go out right after implementation of start of the engine. Activation of a lamp during braking testifies to wear of frictional overlays of brake shoes to extreme admissible value and need of performance of their urgent replacement.
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Control lamp of level of motive oil |
The control lamp of level of motive oil quickly works at inclusion of ignition and has to die away after implementation of start of the engine. Activation of a control lamp at the working engine demonstrates dangerous decrease in level of motive oil. At the first opportunity check oil level, in case of need make the corresponding adjustment (see the Head of the Power supply system and production of the fulfilled gases), make sure of lack of signs of development of leaks.
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Control lamp of level/temperature of cooling liquid |
This control lamp is quickly activated at inclusion of ignition and has to go out right after implementation of start of the engine. Activation of a control lamp during the movement demonstrates that the level of cooling liquid in a broad tank fell to a dangerous limit and it is necessary to make urgently the corresponding adjustment, or temperature of cooling liquid reached the upper bound of admissible range (129 °C). Kill the engine, let's it cool down a little, check liquid level in a broad tank, in case of need make the corresponding adjustment (see the Head of the Power supply system and production of the fulfilled gases).
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Control lamp of the mode of the movement on off road terrain |
This control lamp serves for confirmation of serviceability of switching in the mode of the movement on off road terrain (see the Section Governing bodies and the equipment of salon), - in the course of switching the lamp has to blink three times, then pass into the mode of a constant luminescence. The speeded-up lamp blinking at inclusion of ignition testifies to malfunction in system of switching in the LOW RANGE mode and the car should be driven away on HUNDRED companies Mercedes-Benz for performing diagnostics and performance of necessary recovery repair.
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Control lamp of refusals of MIL ("Check the engine") |
This control lamp quickly works at inclusion of ignition and has to die away several seconds later after implementation of start of the engine. The refusal of a lamp of shutdown, and also its activation during the movement demonstrates violation of serviceability of functioning of control systems of engine/decrease in toxicity of the fulfilled gases, - the car should be driven away immediately on HUNDRED companies Mercedes-Benz for performing diagnostics and performance of necessary recovery repair.
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For shutdown of the control lamp activated after gas station of completely devastated fuel tank it is necessary to repeat three-four times the procedure of start of the engine. |
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Control lamp of shutdown of a frontal passenger safety cushion at installation of a children's seat on the right front seat (AIRBAG OFF) |
This control lamp has to light up when fixing such special children's seat on a front passenger seat, confirming thereby the fact of shutdown of a passenger safety cushion. The refusal of operation of a control lamp demonstrates that shutdown of a pillow did not happen and the children's seat should be transferred back, - ask for the help on HUNDRED Mercedes-Benzs.
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Light indicator of activation of fog lights |
Serviceability of activation of fog lighting is confirmed by operation of this light indicator (both forward, and back – see the Section Governing bodies and the equipment of salon).
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Control lamp of blocking of a clamp of the mechanism of adjustment of a steering column |
Activation of this control lamp warns the driver that the mechanism of adjustment of height of situation the helmsman of a column is not blocked (see the Section Governing bodies and the equipment of salon) and is dangerous to begin the movement.
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Control lamp of system of additional safety (SRS) |
This control lamp approximately for 4 seconds lights up at inclusion of ignition and has to die away right after implementation of start of the engine. If the lama continues to burn at the working engine (in the constant or flashing mode), it indicates existence of malfunction of components of the SRS system. At the corresponding complete set operation of this control lamp can be the testimony of malfunction in contours of side and head safety cushions, or devices of automatic emergency natyazhitel of seat belts.
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Control lamp of level of brake liquid / refusals of electronic system of distribution of brake efforts (EBV)/indicator of raising of the parking brake |
The control lamp continuously burns at raising of the parking brake, reminding the driver of need of his otpuskaniye before a start of motion. The movement with the cocked parking brake leads to a bystry overheat and failure of brake mechanisms of back wheels of the car, and also to premature wear of protectors of tires of back wheels, but also, can become a cause of infringement of serviceability of functioning of system of anti-blocking of brakes (ABS).
If the control lamp continues to burn after an otpuskaniye of the parking brake, or joins in time of the movement, it usually demonstrates excessive falling of level of brake fluid, - one of the possible reasons of gradual decrease in level of brake fluid is normal wear of frictional overlays of brake shoes.
Violation of serviceability of functioning of electronic system of distribution of brake efforts (EBV) is one more reason of activation of this control lamp, - the car should be driven away on the nearest car repair shop for assessment of a condition of blocks and check of tightness of a hydraulic path of the brake system.
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Short-term operation of a control lamp happens also at inclusion of ignition (even at the released parking brake). |
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Control lamp of a charge of the rechargeable battery |
The control lamp of a charge has to light up at inclusion of ignition and die away right after start of the engine. Activation of a lamp at the working engine warns the driver about violation of serviceability of functioning of system of a charge when the rechargeable battery passes into the category mode. It is necessary to switch off at once everything consumers of the electric power on whose functioning traffic safety does not depend and to try not to allow an engine stop as the attempt of its start can lead to the final category of the battery. Check a state and effort a tension of a driving belt of the generator, in case of need make the corresponding adjustment. If a belt as it should be, the car it is necessary to drive away at once on the nearest car repair shop for performing diagnostics of refusal and performance of necessary recovery repair.
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Light indicator of activation of driving beam |
This indicator serves for confirmation of activation of driving beam of headlights.
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Control lamp of preheat of the diesel engine |
The control lamp of preheat lights up at inclusion of ignition and demonstrates activation of system of preheat. Start of the engine has to be carried out not earlier than the control lamp is disconnected.
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Control lamp of an electronic control system of power of the diesel engine (EPC) |
This control lamp has to light up at inclusion of ignition and die away right after start of the engine. Operation of a lamp during the movement demonstrates refusal in a control system of injection of fuel of the diesel engine, - the system passes the mode of emergency functioning in which at the movement it is not necessary to squeeze out against the stop the accelerator pedal and to exceed turns of a bent shaft 2500 in a minute. The power developed by the engine in a similar situation can decrease considerably and the car should be driven away on the nearest car repair shop of the Mercedes-Benz company.
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Light indicator "Fasten a Seat Belt" |
This indicator has an amber luminescence and quickly (approximately for 6 seconds) works inclusion of ignition, reminding the driver and passengers of need of fastening by seat belts.
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Control lamp of level/frost resistance of liquid in the tank of liquid of washing of wind glass / lenses of headlights |
This control lamp is quickly activated at inclusion of ignition and has to go out right after implementation of start of the engine. Activation of a control lamp during the movement demonstrates that the level of the washing liquid fell approximately to 1/4 volumes of the corresponding tank.
At a temperature below 0 °C this control lamp can also warn the driver about freezing of the washing liquid and need of increase in concentration for it of frost-resistant ingredient.
Light indicators of indexes of turn
Light indicators in the form of arrows have a green luminescence and serve for control of serviceability of functioning of the corresponding indexes of turns. The direction of indicator arrows coincides with the chosen direction of change of course of the car. Indicators work in the flashing mode with a frequency, the corresponding frequency of a blinking of indexes of turn. The speeded-up blinking of one of indicators usually demonstrates burn-out of a lamp of one of indexes of the corresponding turn. Follows at the first opportunity to make replacement of the burned-down lamp not to create emergencies on roads.
Turning on of the alarm system usually is followed by a simultaneous blinking of indicators of indexes of both turns.