Driving with a faulty alternator (Renault 19)

If the generator or voltage regulator does not work, you can continue your trip, as the battery is temporarily sufficient for this.

Gasoline engine: During the day, the battery current will last for some time, although the ignition system needs a minimum voltage to function properly, and fuel injection engines, with various sensors, injectors and fuel pumps, depend on the battery current. Depending on the battery capacity, it can last for about 5 hours of driving.

Diesel: since the diesel does not require ignition and can be operated with a faulty generator if it is started without electric current, the duration of the trip on it is theoretically unlimited. However, since the shut-off valve is activated by electricity, it consumes energy from the battery.

Current consumers such as lighting, flashing lights, windshield wipers, etc., reduce the possible travel time with both engine types. Therefore, save electricity - this is the main rule.

1. It is not necessary to interrupt your trip. The starter and preheater require a lot of electricity. If possible, let the car coast.

2. The rear window heater, fan and radio must be switched off.

3. Use the windshield wiper and washer as little as possible.

(Article reprinted from the website: RenaultBook)

4. At night, drive without high beam headlights and fog lights.

5. Disconnect the alternator multi-pin connector to avoid draining the battery due to a faulty alternator or voltage regulator.

6. In order to completely eliminate damage to the generator during the continuation of the trip, it is necessary to remove the voltage regulator.