What causes the audio distortion in Baojun 510 when the AC is turned on?
3 Answers
Baojun 510 experiencing audio distortion when the AC is turned on may be due to a blower fan malfunction, while increased noise from the AC outside the vehicle could indicate a compressor issue. Compressor malfunction: Loose mounting bolts at the compressor installation point; insufficient amount of refrigeration oil in the system; overcharging of refrigerant in the system; compressor clutch slipping or seizing; wear of internal compressor components. If abnormal noises are heard from the car's AC compressor, conduct a step-by-step inspection and take appropriate measures based on the findings. Blower fan malfunction: Loose mounting bolts of the blower fan; fan blades colliding with other components; loose fixation between blades and motor; foreign objects entering the air duct; wear and damage to the blower motor; abnormal voltage or current in the electrical system.
My Baojun 510 also had this issue - the speakers would crackle when the AC was turned on. I suspect it's because the current fluctuation when the AC starts up interferes with the audio circuit, especially since the wiring harness design in models like the 510 tends to be simpler. Another common cause is poor contact in the audio system's ground wire - rust buildup often leads to this. I once tried opening up the center console to check the wiring and found the grounding screw was slightly loose. A quick reminder: if you've modified the audio system, pay extra attention to whether the aftermarket wiring is tangled together. Last time, my friend's car had speaker popping issues precisely because the subwoofer wires were too close to the AC lines. It's best to have an electrician measure whether the system voltage remains stable.
The issue with the Baojun 510 is quite common in our repair circles, and it's most likely due to electrical system interference. When the compressor starts, it draws a large amount of current, causing unstable power supply to the audio system and resulting in popping sounds. I've handled several cases where owners installed low-quality dash cams, leading to circuit conflicts. Here's a simple trick: before turning on the AC next time, set the fan to the lowest setting first. If the popping sound reduces, it's a current issue. Also, check if the battery terminals are corroded. This car has a small battery capacity, and voltage fluctuations are more common as it ages. For a permanent fix, you'll need to inspect the vehicle's grounding wires and consider installing a power filter.
