Starting an engine with a dead battery (Audi 100 C4)

Cars with a catalytic converter rarely need to be towed or pushed. If the engine does not start only because the battery is dead, this is not dangerous. The method of starting the car by pushing or towing can be dangerous if the car does not start due to a malfunction of the ignition system. In this case, the unburned mixture can ignite and raise the temperature in the catalytic converter to dangerous levels.

Starting the engine with another battery

Bring the car with the charged battery close enough to allow easy access to the jumper cable to connect its battery to the dead battery.

Check that all power consumers in your de-energized vehicle are disconnected.

The first wire should connect the positive terminals of both batteries.

In vehicles with a battery under the rear seat: connect the positive wire to the "+" terminal on the right rear of the engine compartment.

The other wire is first connected to the negative terminal of a charged auxiliary battery, and then in the engine compartment of a de-energized vehicle to the bare body (for example, directly to the engine).

Start the engine of the auxiliary vehicle and make it run at high speed so that the generator produces increased voltage.

If the engine does not start immediately, you should take a break to cool the starter. The auxiliary engine should be left running, which will allow the discharged battery to charge a little.

When disconnecting the auxiliary wires, first disconnect the terminal from the negative terminal of the charged auxiliary battery.





[The original text of the material can be found on the website: AUDIMANUAL]