Arnott RH-4274 Suspension Ride Height Sensor - Rear Left

Rear Left Ride Height Sensor for Audi Air Suspension

Arnott RH-4274 is a new rear left suspension ride height sensor for Audi models equipped with air suspension. It measures chassis-to-road distance and sends that signal to the ECU so the system can adjust air pressure in the struts and maintain proper vehicle level.

Compatible with select 2018-2025 Audi Q5, 2019-2025 Audi A6 Quattro, and other rear left applications listed below, this sensor addresses a common wear item exposed to road debris, water, salt, and impact damage. Arnott RH-4274 is built as a standard replacement for the original sensor used on these vehicles.

Key Features

• Rear left suspension ride height sensor
• New, standard-grade replacement part
• Black oval connector with 1 connector and 3 blade terminals
• Female connector / male terminal configuration
• Direct replacement for OE-style air suspension height monitoring
• Cross-references Audi part numbers 4K0941309B and 80A941309C

Detailed Description

The Arnott RH-4274 ride height sensor provides the input your Audi air suspension system uses to maintain correct ride height. When the sensor reports chassis position changes, the ECU can command the compressor to add or release air from the air struts as needed. This helps preserve consistent stance and suspension control on vehicles such as the Audi A6 allroad, A7 Sportback, Q5, SQ5, RS6 Avant, and RS7 Sportback.

This part number, RH-4274, is a practical replacement when the original sensor has worn out or been damaged by corrosion, debris, or moisture intrusion. It is a new sensor with an oval black connector and blade terminals for the rear left position.

What It Helps Address

• Incorrect ride height readings
• Air suspension warning messages related to height sensing
• Uneven vehicle stance at the rear left corner
• Delayed or improper compressor response
• Sensor failure caused by road splash, salt, or impact damage

Installation Notes and Tips

Verify rear left placement before installation and compare the connector shape, terminal count, and mounting points to the original sensor. After replacement, clear any stored suspension fault codes and confirm the vehicle levels correctly through the full ride-height range. For fitment, this part fits 2020-2025 Audi A6 allroad, rear left; 2019-2025 Audi A6 Quattro, rear left; 2019-2025 Audi A7 Sportback, rear left; 2018-2025 Audi Q5, rear left; 2020-2025 Audi Q5 PHEV, rear left; 2021-2025 Audi Q5 Sportback, rear left; 2021-2025 Audi RS6 Avant, rear left; 2021-2025 Audi RS7 Sportback, rear left; 2020-2025 Audi S6, rear left; 2020-2025 Audi S7 Sportback, rear left; 2018-2025 Audi SQ5, rear left; 2021-2025 Audi SQ5 Sportback, rear left; and 2020 Audi S7, rear left.

Quality Assurance

Arnott manufactures aftermarket suspension components with OE-style application coverage and replacement-focused engineering. RH-4274 is supplied as a new part for the listed Audi air suspension applications.