
There are many causes of abnormal braking noise, and not every noise indicates a problem with the braking system. Some noises are simply due to weather, temperature, or normal wear and are not faults. Abnormal noise in new cars: If a newly purchased car experiences abnormal braking noise, this is usually normal because the car is still in the break-in period. Abnormal noise after rain: Since most brake discs are primarily made of iron, they may develop rust after rain or washing the car, leading to abnormal noise when the vehicle is started again. Abnormal noise due to sand or stones in the brakes: Environmental conditions can sometimes cause issues. If foreign objects like sand or small stones get between the brake pads and discs while driving, they can produce a sharp noise when braking.

I've heard many Lavida Horizon owners complain about abnormal noises from the AC when braking. There are quite a few common causes. The change in engine load during braking may cause the AC compressor to engage more frequently, producing clicking or whirring sounds – sometimes normal but worth attention if too frequent. Other possibilities include loose AC fan blades rubbing against the engine bay, dust accumulation in the blower causing imbalance, or loose air duct connections vibrating. The Lavida Horizon's simpler AC design makes it prone to internal component loosening from seasonal moisture/rust. Start by checking the air filter – excessive dirt increases air resistance and noise. Safety first: if noises are loud/distracting, immediately visit a professional shop to inspect the fan and compressor before minor issues escalate. Regular AC reduces risks, especially during intensive summer/winter use.

I've encountered a similar issue with my Lavida Classic recently. When braking, the AC keeps making strange noises, like something grinding. It feels related to the vacuum booster pump interacting with the AC system - probably the engine responding to braking causes unstable fan speed, especially noticeable in traffic jams. A clogged cabin air filter can also cause this; replacing mine helped significantly. I also checked the air duct connectors for aging cracks needing reinforcement. If it's a rattling sound, there might be debris stuck in the blower fan blades needing cleaning. Testing by turning off the AC while braking confirmed it's an AC issue, not the brake system. Recommend cleaning accumulated dirt inside the AC system when possible - this model tends to collect dust over time. Keeping windows slightly open sometimes reduces such noises, but prolonged neglect could damage the compressor.

The abnormal noise from the Lavida Sail's air conditioning when braking is mostly caused by the operation of the fan or compressor. When braking, the engine load changes, prompting the air conditioning to automatically adjust the cooling intensity, which may cause sudden changes in fan speed and produce a buzzing sound. Common causes include misaligned fan blades or worn bearings. Dust accumulation inside the blower can also lead to a whooshing sound, which can be alleviated by cleaning the filter and air ducts. If a noticeable clicking sound occurs, it might indicate a loose compressor switch that needs tightening. Checking these simple points can be done by yourself, such as turning on the air conditioning to listen for the location of the noise to determine its source. Minor sounds are not a concern, but unusually loud noises should be addressed promptly to prevent fault escalation and ensure driving safety.

Brake-induced AC noise is common in the Lavida Start model, primarily caused by system conflicts. During braking, the vacuum booster pump consumes power, potentially causing the AC compressor to produce abnormal noises due to voltage fluctuations. Unbalanced fans or deformed blades rubbing against the cabin wall may emit sharp sounds, which could severely damage electrical components. Poor sealing of internal air ducts exacerbates vibration noise frequency. Regular inspection of AC fan operation is crucial, and frequent air filter replacement can prevent most issues. From a safety perspective, prolonged abnormal noises may lead to overheating or system failures, especially requiring vigilance during high-speed driving. It's recommended to visit professional service centers for diagnostic tests on AC pressure, and timely lubrication of fan bearings can reduce similar occurrences.

Encountering the issue of the Lavida Horizon's air conditioning noise when braking, I discovered it's caused by the interaction between the air conditioning cooling cycle and the braking mechanism. Pressing the brake reduces engine speed, requiring the compressor to adapt, leading to unstable airflow and changes in fan speed that produce whistling or rumbling sounds. Worn fan shafts or insufficient lubrication can exacerbate the noise. Aging air ducts with leaks may also vibrate and produce sounds. Cleaning the air conditioning internals, especially the filter, often effectively improves the situation. The Lavida Horizon's air conditioning design is relatively compact, making it prone to hidden issues with insufficient . It's recommended to regularly monitor the air conditioning system's noise patterns; if it only occurs when braking, address it specifically. Avoiding continuous use of the air conditioning under high temperatures can extend component lifespan. For frequent abnormal noises, seek repair and use a multimeter to test whether the circuit current is stable.


