Audi A4 12-15 Reversing Radar PDC Sensor 4H0919275 Parking Assistance

This replacement part matches original factory standards in material and workmanship; housing uses weather-resistant engineering plastic; internal circuit board is treated with moisture-proof coating to resist temperature changes and humidity; durability is on par with original parts. OEM numbers include 4H0919275, 3C0919275S, 3C0919275L, and 3D0919275B; fits Audi A4 2012–2015. Function: uses ultrasonic sensor to detect obstacles behind and provide precise distance alert, aiding parking. Replacement difficulty is medium; requires removing rear bumper cover and disconnecting sensor wiring harness; recommended for technicians with basic circuit experience to avoid damaging clips or wiring.