why does the DSC light come on my BMW X3 G01 (2018-2024)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Wheel Speed Sensors

• Sub-steps:
  1. Locate the wheel speed sensors at each wheel hub.
  2. Disconnect the electrical connector from each sensor.
  3. Remove the bolts securing the wheel speed sensor using a socket set.
  4. Pull out the old sensor and install the new one, ensuring it is seated properly.
  5. Reconnect the electrical connector and secure the sensor with bolts to the manufacturer’s torque specifications.
• Tools Required: Socket set, torque wrench.

3. Inspect and Refill Brake Fluid

• Sub-steps:
  1. Locate the brake fluid reservoir under the hood.
  2. Check the fluid level against the markings on the reservoir.
  3. If low, remove the cap and add the correct type of brake fluid (DOT 4 recommended for most BMWs).
  4. Replace the cap securely after refilling.
• Tools Required: Brake fluid.

4. Reset DSC System

• Sub-steps:
  1. Reconnect the battery that was previously disconnected.
  2. Start the engine and allow it to idle for a few minutes.
  3. Use the OBD-II scanner to clear any fault codes related to DSC.
  4. Turn the steering wheel from lock to lock to recalibrate the DSC system.
• Tools Required: OBD-II scanner.