What Causes the BMW 5 Series Horn Not to Work?

[MacEva]

BMW 5 Series horn not working is likely due to a broken power circuit. You can check the circuit to see if it's clear or broken. Another possible cause is poor contact of the horn button. It is recommended that the owner go to a professional auto repair shop or 4S store for inspection. Here are the specific reasons: 1. Broken power circuit: The issue of a broken horn power circuit can be checked to see if the circuit is clear or broken. If so, just reconnect the circuit. 2. Poor contact: It may be due to poor contact of the horn button. Poor contact can also cause the horn not to work. You can check it and then repair the contact points. 3. Relay contact erosion: It may be due to relay contact erosion or excessive gap, as well as a broken magnetic coil of the horn. 4. Excessive armature air gap: It may be due to an excessive armature air gap of the horn. An excessive armature air gap can cause the horn not to work, but this can also be repaired by adjusting it properly.