REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz M-Class (W163, 1997 issue)

general info. full specifications. diagnostics. hints. tips. tricks

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Mercedes-Benz
	W163
		Introduction
		Controls and receptions of safe operation
		Current care and maintenance
		Engine
		System of cooling, heating and air conditioner
		The power supply system and exhaust
		Systems of an electric motor
		Manual box of a gear change
		The transmission automatically processed
		Transmission Line
		Brakes and auxiliary systems
			General information and safety measures
			Check the brake system for leaks
			Check of serviceability of functioning of the vacuum brake booster
			Check non-return valve
			Removal and installation of the main brake cylinder
			Removing and installing brake servo stroke sensor diaphragm BAS
			Removing and installing hydromodulator ETS / ESP
			Removing and installing hydraulic lines laid between GTZ and hydromodulator ETS / ESP
			Assessment of the degree of wear and replacement brake pads
			Replacement brake hoses
			Removal and installation of a support
			Removal and installation of a brake disk
			Replacing the parking brake shoes
			Bleeding brake system
			Removal and installation of the pedal assembly and the gauge-switch of stoplights
			Removing and installing brake pedal charging parking
			Removal and installation of a rope assembly handbrake
			Adjusting the parking brake
			Removal and installation of wheel gauges ABS / ETS / ESP
		Suspension and steering
		Body
		Onboard electric

printable version

Check non-return valve

Check of serviceability of functioning of the vacuum brake booster

8 - Vacuum line
070 - Connector

PERFORMANCE ORDER
Connect the vacuum gauge (030) to a connector (070) of the vacuum line (8) of the brake booster (16) and a few taps on the brake pedal reset the vacuum in the vacuum path.
Start the engine and a sharp releasing the accelerator pedal depressed, create a vacuum in the path of the required vacuum (0.75 ÷ 0.80 bar).
While pressing the brake pedal relieve depression to a depth of> 0.80 bar.
Stop the engine, - the rate of loss of vacuum should not exceed 0.4 bar / min. If necessary, check if the servo operation of the vacuum amplifier (see. Section Check of serviceability of functioning of brake servo).
Disconnect the gauge (030).

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Check of serviceability of functioning of the vacuum brake booster

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Removal and installation of the main brake cylinder