Starting the engine from an external battery (Audi A4 B6)

To connect a charged and discharged battery together, use special wires for starting the engine from an external battery; this will protect electronic components from dangerous voltage peaks.

1. The car with the live battery must be parked next to the car with the dead battery so that the batteries can be connected with wires.

2. Turn off all consumers.

3. Connect the wire to the positive pole of the battery, first connect the discharged battery, then the charged battery.

4. First connect the second wire to the negative pole of the external battery, then to the ground of the car with the discharged battery.

5. Then you should start the car engine with the power battery, the engine should run at high speed so that the generator delivers full voltage.

6. Start your car's engine. If the engine does not start right away, pause after each start attempt to allow the starter to cool. The engine of a car with a charged battery should continue to run, while the discharged battery will be recharged.

7. When disconnecting wires, first disconnect the ground wire (negative pole) your battery, then from the negative pole of the power battery. After that, disconnect the wire from the positive poles: first from the pole of the foreign battery, then from the pole of the discharged battery.

8. After starting, the engine should run at high speed so that the generator charges the battery.

(The text is based on materials from the website «AUDIMANUAL.RU»)