The BMW M4 is known for its powerful engine and aggressive styling, but some owners may find themselves wanting more exhaust noise. That’s where the Active Sound Design (ASD) system comes in, which uses speakers to enhance the engine sound in the cabin. However, like any other car component, the ASD system can experience issues, leaving you with a less-than-desirable driving experience.
Understanding the BMW M4 Active Sound System
The Active Sound Design system uses a combination of microphones, speakers, and software to generate a synthesized engine sound that is played through the car’s audio system. The intensity of the sound varies depending on the driving mode and engine speed, providing a more engaging driving experience.
Common Issues with BMW M4 Active Sound
While the ASD system is generally reliable, some issues can arise, including:
- Complete sound loss: This could be due to a malfunctioning ASD module, blown speakers, or software glitches.
- Distorted or crackling sound: This often indicates a problem with the speakers or wiring.
- Intermittent sound: This could be a sign of a loose connection or a failing ASD module.
- No sound in certain driving modes: This suggests a software-related problem or a faulty sensor.
Diagnosing Active Sound Problems
Diagnosing the root cause of Active Sound issues requires a combination of sensory inspection and diagnostic tools.
- Listen closely: Identify if the sound is completely gone, distorted, intermittent, or absent in specific modes.
- Check for error messages: The iDrive system may display error messages related to the ASD system.
- Use a diagnostic scanner: A professional-grade scanner, like those offered by Cardiagtech, can read fault codes stored in the ASD module, providing valuable clues about the issue.
Repairing BMW M4 Active Sound Issues
The repair procedure for Active Sound problems will depend on the diagnosed fault. Here’s a general guide:
- Software update or reset: For software-related issues, a simple software update or reset using a specialized tool might be sufficient.
- Wiring and connection inspection: Carefully inspect the wiring harness and connections for any signs of damage, loose connections, or corrosion. Repair or replace as needed.
- Speaker replacement: If the speakers are blown or damaged, they will need to be replaced with OEM or compatible aftermarket options.
- ASD module replacement: A faulty ASD module will need to be replaced with a new one. This often involves coding the new module to the vehicle.
Frequently Asked Questions about BMW M4 Active Sound
Q: Can I turn off the Active Sound Design system?
A: Yes, most BMW M4 models allow you to adjust or disable the ASD system through the iDrive settings.
Q: Can I upgrade the Active Sound Design system for a more aggressive sound?
A: Yes, several aftermarket options are available to enhance the sound of the ASD system, including software tunes and speaker upgrades.
Q: Does the Active Sound Design system affect performance?
A: No, the ASD system is purely for sound enhancement and does not impact engine performance in any way.
Need Further Assistance?
Experiencing issues with your Bmw M4 Active Sound system? Don’t hesitate to contact the experts at CARDIAGTECH. Our team of certified technicians is equipped with the latest diagnostic tools and software to diagnose and repair any issues with your vehicle’s electronics. Contact us today at +1 (641) 206-8880 or CARDIAGTECH[email protected]. Our office is located at 276 Reock St, City of Orange, NJ 07050, United States.