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
		Introduction
		Gasoline engines
			Design and specifications
			Engine adjustment
			Ignition system
				Contact ignition system
					Adjusting contact breaker
					Replacement of contacts of the breaker
					Setting the ignition distributor
					Setting the ignition timing by a stroboscope
					Installation of the moment of ignition with a test lamp
				Contactless system of ignition
			Power system
			The fuel injection system K-Jetronic
			The fuel injection system L-Jetronic
			Works by car
			Work on the engine M 102
			Work on the engine M 110 and M 123
		Coupling
		Manual transmission
		Automatic Transmission
		Driveline and rear axle
		The front suspension
		Rear suspension
		A steering
		Brakes
		Electrical
		Body and Equipment

Installation of the moment of ignition with a test lamp

PERFORMANCE ORDER

Put the piston of 1st cylinder to TDC by aligning the marks on the crankshaft pulley and timing cover.
Turn the ignition switch and connect the test lamp to the terminal "+" in the case of the distributor of ignition and to the mass.
Check the match marks on the rotor housing and the distributor of ignition, turn the distributor housing counterclockwise and slowly turn it in the opposite direction to the ignition control lamp. In this position, tighten the bolt of the distributor housing.
Install the dust screen, rotor and distributor cap ignition.