Blind Spot Radar Warning System for Audi A4 S4 RS4 B9 Avant With Dual MMWave Sensors

Upgrade your Audi A4 S4 RS4 B9 Avant with a dedicated Blind Spot Radar Warning System designed for proactive safety on modern roads. This system uses two mmWave radar sensors mounted on the rear bumper to detect moving objects within a 3 to 10 meter blind-spot zone. When a vehicle or object enters the sensing area, the corresponding LED light activates, and the system can trigger the same-side turn signal or a rapid LED flash along with a 3‑tone audible prompt to alert you before you change lanes. The result is smoother, safer lane changes and reduced risk of collisions in high-traffic conditions.

Built for real-world driving, the system supports speeds up to 120 km/h and is designed to operate reliably in harsh conditions (temperature range from -30°C to +80°C) with IP66 waterproof protection. It starts up automatically with the ignition (ACC) and continuously monitors your blind spots, giving you peace of mind whether you're cruising on the highway or navigating crowded city streets.

Suitable for Audi A4 S4 RS4 B9 8W Avant models from 2016 to 2023. For a perfect fit, you can opt to customize the laser warning light pattern on your original mirrors by sending them to our factory. Our engineers will tailor the light pattern, while the price remains unchanged; you would simply cover shipping and any applicable customs duties.

The system offers two mainstream display options to match your preference: a lens-displayed prompt on the hardware itself, or an in-car display that shows warnings on the triangular window inside the vehicle. This flexibility helps you choose the most intuitive alert method for your driving style.

OSD Language: English. Language support ensures clear, immediate warnings in your preferred language while you drive. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• Practical lane-change safety: rely on radar detection to catch vehicles in your blind spot before you signal and move lanes, reducing the likelihood of side crashes on busy highways.
• Urban driving flexibility: use the system to monitor rear-side activity when merging through dense traffic or when parked on busy streets, helping you avoid close-pass or overtaking risks.
• Maintenance and calibration: ensure proper operation by confirming the rear bumper is plastic and that there is no metal interference directly in front of the radar emission surface; schedule a calibration check if you notice warning delays or inconsistent alerts.

Product specifications

• Alarm Distance: 700 M
• Brand Name: ZJCG
• Certification: CE
• Detection Mode: Radar Signal Detection
• High-concern chemical: None
• OSD Language: English
• Origin: Mainland China
• Special Features: motion detection
• Style: CAR STYLE
• Type: Fixed & Flow Velocity
• Working voltage: DC 9 ~ 16V
• Working current: DC12V 430MA±10MA
• Working temperature: -30 °C ~ +80 °C
• Static current consumption: ≤1mA
• Waterproof rating: IP66
• Speed adaptation range: ±120KM/hour
• Warning range: 3 to 10 meters behind the side
• Warning method: sound and LED lighting
• Startup mode: start with ACC
• Display options: Lens display or in-car display
• Two mainstream types: Lens display; Display in the car
• Included features: LCA lane change assistance; BSD blind monitoring system; AOA Active Overtaking Warning; B-pillar blind spot following warning; RCTA reverse crossing warning; DOW door opening warning (optional)

Package includes:

• Radar sensor
• Power cord
• LED transconnection
• LED indicator light
• Blind area rear view lens
• Steering and reversing inspection line
• Calibration card
• Radar bracket
• Screw
• buzzer
• Instructions

Warnings / Reminders

• Radar signals cannot penetrate metal and are easily interfered by fluorescent lights. Confirm during installation: the rear bumper of the installed car is plastic, there must be no metal interference directly in front of the radar sensor (signal emission surface), and the radar sensor (signal emission surface) cannot be installed facing fluorescent lamps.

Language support

OSD Language: English. This product provides English on-screen display for clear, immediate warnings during driving.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Providing quality and trusted service since 2002 at intercyprus.com.