
Baojun e100 brake failure displaying EVP is due to a damaged brake booster pump. Below is the relevant introduction of the Baojun e100: 1. Appearance: The front face of the Baojun E100 features a perforated grille with smooth lines. The A-pillars are blackened, combined with a two-tone body design, creating a visual effect of a floating roof. 2. Interior: The interior of the Baojun E100 adopts an encircling design, with multi-directional adjustable seats. The multifunctional steering wheel and LCD combination instrument panel can achieve most functions. Additionally, the Baojun E100 has a 190L capacity trunk and up to ten storage spaces inside the car. 3. Configuration: The Baojun E100 comes standard with lens headlights, front fog lights, turn signals, a multifunctional steering wheel, a 7-inch instrument panel, one-touch window lowering, rear parking sensors, 2 USB ports, onboard 4G Wi-Fi, onboard Bluetooth, App car connectivity, and four-wheel disc brakes. The Zhi Xiang version adds features such as electric adjustment for the exterior rearview mirrors, keyless entry/one-touch start, electronic parking brake, four-way seat adjustment, vehicle stability system, front passenger ISOFIX interface, and 5 USB ports.

Don't panic when encountering a Baojun E100 brake failure with the EVP light on—it's a warning about the electronic vacuum pump issue. Unlike fuel-powered vehicles, our electric cars entirely on this electric vacuum pump for brake assistance. I've previously serviced several similar cases in the workshop and found three common possibilities: first, the vacuum pump itself is faulty, with a seized or burnt motor; second, there's air leakage in the vacuum tube, especially at the connecting rubber tubes that may have aged and cracked; third, it could be a sensor false alarm or wiring short circuit. Another easily overlooked point: unstable voltage from the small battery can also trigger false alarms. It's recommended to pull over immediately and check, trying to restart the vehicle to see if the light disappears. If the fault light remains on, never force the car to drive—the brake assistance will weaken, and even steering will become difficult.

I've encountered EVP faults twice in the five years of driving my electric vehicle. The first time was after I changed the brake pads myself when the warning light came on, and it turned out I had loosened the vacuum pump wiring while unplugging connectors. The second occurrence happened on the highway when the light suddenly illuminated, and the brake pedal felt unusually stiff - replacing the vacuum pump finally solved the issue. This problem is quite common; at least three members in my car enthusiast group have experienced it. Beyond hardware failures, checking the fuse is crucial - located in the engine compartment fuse box labeled EVP, use tweezers to pull it out and inspect if the metal filament is broken. There's also a practical trick: turn on the headlights and press the brake to listen for the pump's humming sound - if it's silent, there's an 80% chance the pump has stopped working.

The illuminated EVP warning light on the Baojun E100 usually indicates a vacuum pump system issue. This component is crucial for the electric braking system - failure will cause the pedal to become stiff. Common causes include: burned-out vacuum pump motor, vacuum line leaks (pay special attention to connections), or control module failure. From personal experience, excessive brake pad wear can also trigger false alerts. Troubleshooting steps: first scan OBD codes to identify the problem; then measure vacuum pressure (normal range should be -0.6 to -0.8 bar); simultaneously check relays and fuse sockets. If the code shows insufficient pressure, replacement of the entire pump assembly may be required.

The EVP warning light is absolutely worth taking seriously! The vacuum pump in an electric vehicle is like the respiratory system - if it fails, it's dangerous. Last month, my colleague ignored this warning light and nearly rear-ended someone while going downhill. For troubleshooting, follow these three steps: unplug the vacuum pump connector and check voltage with a multimeter (normal reading around 12V); use a stethoscope or long screwdriver to listen for operational sounds near the pump; then pinch the vacuum hose to check if it quickly rebounds. Regular should include cleaning dust from this pump - I've seen cases where carbon buildup caused jamming. For new vehicles under warranty, visit the dealership immediately. Out of warranty, a reliable repair shop can replace it for about 300 yuan.

In the first year of driving my E100, the EVP light came on, and I panicked, trying to restart the car three times before it disappeared. A seasoned mechanic advised me to pay attention to three things in daily use: frequent short trips can overwork the pump and accelerate wear, so it's recommended to drive on the highway regularly to alleviate this; avoid using a high-pressure water gun directly on the electrical box under the chassis when washing the car; and try not to park on a slope for extended periods to prevent abnormal hydraulic oil pressure. The most hassle-free solution is to carry a small OBD scanner to read data anytime—a faulty vacuum sensor will display the C0240 error code. Before the rainy season, it's best to check the waterproof seal of the vacuum pump motor's gasket.


