REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Passat B3 / B4 (c 1988 and 1996 model year)

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

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Volkswagen
	Passat B3 / B4
		Operation of the vehicle
		Maintenance
		Engines
		Cooling
		The power supply system
		Ignition system
		Coupling
		Transmission
		Drive the front wheels
		Suspension
		Steering
		Brakes
		Wheels and tires
		Heating, ventilation and air conditioning
			Specifications
			Overview
			The air conditioning system with a circulating coolant
			Precautions when servicing the air conditioning system
			troubleshooting
			Filling the air conditioner refrigerant
			Troubleshooting in heating and air-conditioning
			Plenum box
			Fan
			Vozduhopritoka cover and vacuum system
			Air-Receiver
			Fan heater
			Control cables
			Aggregates air-conditioning system
			The main provisions of the air conditioner service
		Electrical
		Body
		Electrical diagrams

printable version

Vozduhopritoka cover and vacuum system

Cut the air distribution box with the lid closed vozduhopritoka (top right) (access to air ceased)

Fig. 14.9. Cut the air distribution box with the lid closed vozduhopritoka (top right) (access air discontinued): 1 - a cover vozduhopritoka; 2 - the vacuum servo

Cover vozduhopritoka 1 (Fig. 14.9) sets the amount of air supplied to the ventilation system. Drive cover ensures its closing when switching the fan switch in position "0" or ?�Off?�. When the fan cover vozduhopritoka opens, providing access to the atmospheric air, the air distribution box. When you turn on the air conditioning at maximum cooling, the actuator 2 picks up and closes the cover, blocking the access of air, followed by a recycling of the bleed air from the passenger compartment.

Fig. 14.10. Vacuum system drive cover vozduhopritoka: 1 - control valve; 2 - to the engine; 3 - vacuum tank; 4 - check valve to the pipeline bleed; 5 - flange fittings heat exchanger; 6 - the vacuum actuator; 7 - two-way valve; 8 - Tee

The vacuum system (Fig. 14.10) provides a closing or opening the lid vozduhopritoka. The arrow near the control valve 4 indicate the direction of flow. The stream should be directed towards the vacuum source - a line of pumping the brake servo. Two-way valve electrically connects the vacuum line to the actuator cover 6 vozduhopritoka when you turn off the fan or air conditioner switch position "Max A / C."

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