What are the symptoms of a clicking noise when stepping on the brake with the car's air conditioning on?

[DelJuniper]

Symptoms of a clicking noise when stepping on the brake with the car's air conditioning on are as follows: 1. Engine noise: Symptom description: There can be various possibilities for noises coming from the engine compartment. Most people identify the noise source as the engine compartment, typically characterized by a metallic screeching or a whistling sound. 2. Transmission noise: Symptom description: If there is a "rustling" sound from the transmission while driving, which disappears when the clutch or accelerator is pressed, and a whistling-like sound occurs during gear shifting. 3. Wear-related noise: Symptom description: When pressing the accelerator or brake while driving, there might be some minor noises from certain parts of the car body. The sound is not loud and does not affect normal driving, but it can cause slight concern about potential faults.