Arnott RH-4272 Headlight Level Sensor - Front Left

Arnott RH-4272 Headlight Level Sensor

The Arnott RH-4272 headlight level sensor helps maintain proper vehicle ride height feedback for air suspension-equipped Audi models. It measures chassis-to-road distance and sends that data to the ECU so the system can adjust air pressure as needed for consistent leveling and lighting alignment.

Built as a new replacement sensor with a black oval connector, 3 male blade terminals, and 1 female connector interface, this part is a direct-fit solution for front left applications on select Audi A6 allroad, A6 Quattro, A7 Sportback, Q5, SQ5, RS6 Avant, and related models.

Key Features

• Brand: Arnott
• Part number: RH-4272
• New replacement ride height sensor
• Black connector color with oval connector shape
• 3-terminal blade design
• 1 connector, female connector gender
• Front left position application
• Standard grade construction

Detailed Description

The Arnott RH-4272 is a headlight level sensor used in air suspension systems to report ride height changes to the vehicle control unit. That signal allows the ECU to command the compressor and air struts to raise or lower the chassis as needed. For Audi A6 allroad, Audi A6 Quattro, Audi A7 Sportback, Audi Q5, Audi SQ5, Audi RS6 Avant, and Audi RS7 Sportback applications, accurate sensor input is important for maintaining proper suspension response and leveling behavior. This part cross-references 4K0941285B and 80A941285B for the same application.

What It Helps Address

• Incorrect ride height readings from a worn sensor
• Suspension leveling faults on air suspension systems
• Uneven vehicle stance at the front left corner
• Warning lights related to ride height or leveling control
• Reduced suspension response caused by damaged sensor input

Installation Notes and Tips

Fits 2020-2025 Audi A6 allroad, front left. Fits 2019-2025 Audi A6 Quattro, front left. Fits 2019-2025 Audi A7 Sportback, front left. Fits 2018-2025 Audi Q5, front left. Fits 2020-2025 Audi Q5 PHEV, front left. Fits 2021-2025 Audi Q5 Sportback, front left. Fits 2021-2025 Audi RS6 Avant, front left. Fits 2021-2025 Audi RS7 Sportback, front left. Fits 2020-2025 Audi S6, front left. Fits 2020-2025 Audi S7 Sportback, front left. Fits 2018-2025 Audi SQ5, front left. Fits 2021-2025 Audi SQ5 Sportback, front left. Fits 2020 Audi S7, front left.

Verify connector shape, terminal count, and mounting location before installation. Inspect the linkage area for road debris damage, corrosion, water intrusion, or salt exposure that may have affected the original sensor. Confirm the suspension system is calibrated after replacement if required by the vehicle service procedure.

Quality Assurance

Arnott manufactures this sensor as a new aftermarket replacement for air suspension ride height control. The design follows the electrical and mounting characteristics needed for the listed Audi applications, supporting accurate ECU feedback for leveling operation.