51115A0AF30 Cover | Cruise Control Distance Sensor Protective Assembly

51115A0AF30 Cover - Protective Housing for Cruise Control Distance Sensors

Specifically engineered as the 51115A0AF30 Cover, this critical protective component shields the radar-based distance measurement sensors used in BMW adaptive cruise control systems. The precisely molded aerodynamic housing maintains uninterrupted signal transmission while protecting sensitive electronics from road debris, water intrusion, and environmental contaminants. Constructed from impact-modified polypropylene with UV stabilizers, the cover maintains optical clarity and structural integrity across temperature extremes from -40°C to +120°C. The precisely calibrated geometry ensures that millimeter-wave radar signals pass through without distortion while minimizing aerodynamic turbulence at highway speeds. Integrated mounting points provide vibration-resistant attachment to vehicle front ends, and the hydrophobic surface treatment prevents water droplet accumulation that could interfere with sensor accuracy. This essential protective component preserves the functionality of collision avoidance systems by maintaining sensor calibration and preventing damage from stone impacts.

Proper installation position behind bumper grille

Radar-transparent window and mounting features

Environmental protection and sealing system

Vehicle Compatibility Specifications

The 51115A0AF30 Cover is engineered exclusively for BMW models equipped with Active Cruise Control systems using radar-based distance sensors. This protective housing provides precise fitment for F-series platforms including F30 3-Series sedans (2012-2018), F31 Touring models (2013-2018), and F34 Gran Turismo variants (2014-2020). Compatible with all engine configurations from 316i to 340i models when equipped with optional Driver Assistance Package. The cover interfaces correctly with both standard and M Sport bumper designs while maintaining proper alignment with radar emitting elements. Installation requires no modifications to existing sensor brackets or wiring harnesses. Verify vehicle production dates between March 2012 and July 2020 to ensure proper application. Direct replacement for original components referenced under number 51115A0AF30 in ETK systems. Maintains factory-specified clearance to surrounding components including bumper grilles, tow hook covers, and license plate mounts.

Technical Specifications

Manufactured through dual-injection molding process, the 51115A0AF30 Cover combines impact-resistant polypropylene structural frame with radar-transparent polycarbonate window section. The material formulation incorporates carbon black stabilizers that prevent UV degradation while maintaining dimensional stability across extreme temperature fluctuations. Precision-engineered mounting interfaces maintain ±0.15mm positional tolerance to ensure uninterrupted radar beam projection. The specialized polymer blend in the window section attenuates signal interference by less than 0.3dB across the 76-77GHz frequency spectrum. Integrated compression-molded EPDM gaskets create weather-resistant seals while accommodating thermal expansion. Aerodynamic surface contours reduce wind noise by 4dB compared to flat designs. All fastener interfaces feature brass inserts for durable thread engagement and corrosion resistance. The matte black finish matches surrounding trim components while laser-etched positioning guides facilitate proper sensor alignment during installation.

Compatibility Assurance

Compatible with BMW F30, F31, and F34 models equipped with radar-based Active Cruise Control systems. This product is designed to match functional and dimensional characteristics of original components for specified applications.