How to resolve Volkswagen fault code 01130?
2 Answers
Volkswagen fault code 01130 indicates insufficient brake fluid in the braking system, which should be replenished promptly to avoid potential driving hazards. Open the vehicle's hood and refill the specified brake fluid in the brake fluid reservoir up to the MAX mark. Below are specific consequences of prolonged failure to replace brake fluid: 1. Corrosion of the braking system: Brake fluid is hygroscopic and prone to absorbing moisture. If not replaced for an extended period, it can corrode the braking system, posing significant safety risks. 2. Formation of vapor lock: Moisture absorption lowers the boiling point of brake fluid, potentially leading to insufficient braking pressure and impaired braking performance. When temperatures rise to the boiling point, the absorbed water in the brake fluid vaporizes, generating air bubbles. 3. Clogging of the braking system: Prolonged failure to replace brake fluid allows deposits and impurities to accumulate in the brake lines, causing system malfunctions and reduced braking efficiency.
When encountering the 01130 fault code, first inspect the wheel speed sensor. Last time after car washing, the sensor got covered in mud and water, causing signal abnormalities. Cleaning off the metal shavings and dirt restored it. If cleaning doesn't work, focus on checking the wiring, especially for oxidation or looseness at the sensor connector. Intermittent faults are common in rainy weather; remember to use a diagnostic tool to monitor real-time data streams and prioritize troubleshooting the wheel with abnormal signals. When replacing with an OEM sensor, pay attention to the installation angle, as aftermarket parts are prone to false alarms. Additionally, check the ABS reluctor ring for deformation. With this fault, you'll feel the pedal pulsate during hard braking, so timely resolution is essential for safety first.
