What are the reasons for the headlights of the Volkswagen Lavida not working?

[MacChloe]

The reasons for the Lavida's headlights not working include car bulb damage, relay failure, etc. Here are the specific details about why the Lavida's headlights may not work: 1. Severe battery drain: After the headlights are turned on, the battery needs to work together with the generator to supply power. Therefore, during the first two hours of driving at night, the brightness of the headlights is normal. However, after that, as the battery can no longer continue to supply power, the headlights will gradually dim. 2. Overheating of wires increases circuit resistance: The luminous intensity of the headlights decreases. In severe cases, the headlight circuit may short-circuit due to the melting of the wire insulation layer, and even lead to circuit burnout or car fire accidents. 3. Contacts in the circuit, such as the light relay or combination switch, become corroded or stuck: This prevents the circuit from being disconnected or connected. 4. Excessive use of electrical appliances and prolonged generator overload: The generator's diodes and coils may burn out, causing the generator to stop producing electricity.