VW Passat repair

+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling system
+ 5. Power supply system
+ 6. Ignition system
+ 7. Coupling
+ 8. Transmission
+ 9. Drive of forward wheels
+ 10. Suspension brackets
+ 11. Steering
+ 12. Brake system
+ 13. Wheels and tires
+ 14. Systems of heating, ventilation and conditioning
- 15. Electric equipment
   + 15.1. Technical characteristics
   15.2. Security measures at work with electric equipment
   + 15.3. Detection of not closed chain
   + 15.4. Storage battery
   + 15.5. Generator
   + 15.6. Starter
   15.7. Block of safety locks and relay
   15.8. Replacement of the lock of ignition
   + 15.9. Switches
   + 15.10. Combination of devices
   + 15.11. Internal lighting and lighter
   + 15.12. Headlights
   + 15.13. Windscreen cleaner
   15.14. Windscreen washers
   15.15. Cleaner of back glass
   - 15.16. Central lock
      15.16.1. Search of malfunctions in the vacuum and delivery highway
      15.16.2. Vacuum and delivery pump
      15.16.3. Activators of door locks
   + 15.17. Hatch
+ 16. Body
+ 17. Electric circuits


Repair B3-B4/Passat B3-B4 Volkswagen Passat>> Electric equipment>> Central lock

The system of the central lock is put in action by keys of opening of a door of the driver or the passenger. At turn of a key the microswitch which has been built in in the handle of a door becomes isolated, and there is a system operation. System of the central lock — pneumatic. The drive of activators on the fuel filter, on a back cover and on each of four doors is provided with the compressed air. Microswitches in the door handle turn on the vacuum and delivery pump which is mounted in a luggage carrier. Locking and unlocking of activators occurs at influence of an elevated pressure or the vacuum created by the pump.
In default system works at the serviceable pump the most probable cause is leak in pipelines or malfunction of activators.

If the vacuum and delivery pump works rather long time, there is its automatic switching off. If system long time do not use, for pump start, probably, it is necessary to turn a key several times.