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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz E-Class W123 (from 1976 to 1985, the year of issue)

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Mercedes-Benz W123
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Mercedes-Benz
W123
Introduction
Gasoline engines
Design and specifications
Engine adjustment
Ignition system
Power system
The fuel injection system K-Jetronic
Airflow Meter
The dispenser-fuel distributor
Sprayers
Check injection system
Adjusting the engine idling
Possible malfunctions of the system L-Jetronic, their causes and remedies
The fuel injection system L-Jetronic
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Work on the engine M 102
Work on the engine M 110 and M 123
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The fuel injection system K-Jetronic



A fuel injection system "K-Jetronic" is a mechanical system for continuous injection of fuel. The injectors are constantly sprayed the fuel into the intake manifold to the intake valves. Therefore, a change in fuel consumption is achieved not by changing the duration of opening of the nozzles, and controlling the amount of fuel supplied to the injectors.

The amount of air supplied is continuously measured air flow meter and the fuel injection amount is strictly proportional to the amount of air (except for certain modes of engine operation, such as cold start engine operation under full load, etc.) and is regulated by fuel distributor-dispenser.


Driving fuel injection system ?�K-Jetronic?�

1 - fuel tank
2 - the fuel pump
3 - the fuel filter
4 - Fuel Drive
5 - supply pressure regulator
6 - Air flow meter
7 - dozator- fuel distributor
8 - regulator control pressure
9 - injection nozzle
10 - the inlet manifold

11 - launcher nozzle
12 - Throttle
13 - the valve of additional air
14 - temperature sensor
15 - Dispenser
16 - relay unit
17 - the ignition switch
18 - battery





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Airflow Meter

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