Arnott RH-5049 Headlight Level Sensor - Rear Left

Brand Arnott RH-5049
Position Rear Left
Connector Color Various
Terminal Type Pin
Grade Type Standard
Connector Quantity 1
Connector Shape Oval
Terminal Quantity 4
Connector Gender Female
Terminal Gender Male
Mounting Hardware Included No
New Or Remanufactured New
Fits Audi and Volkswagen · 3 vehicles

Ride height sensor. Measures chassis distance to help keep suspension level.

New sensor. Standard-grade replacement with a single oval connector.

Pin-terminal design. Female connector with four male terminals for a secure electrical link.

Cross-references 5Q0512521E for the same application. See all 1.

$98.50Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

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Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $98.50
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Arnott RH-5049 Headlight Level Sensor

Arnott RH-5049 is a new rear left headlight level sensor for select 2015 Audi A3, Volkswagen Golf, and Volkswagen Golf SportWagen models. It monitors suspension ride height so the vehicle’s control system can adjust air suspension response and maintain proper headlamp leveling.

Key Features

  • New aftermarket ride height sensor from Arnott
  • Oval female connector with 4 male terminals
  • 1 connector, standard grade construction
  • Rear left position for confirmed applications
  • Cross-reference part number: 5Q0512521E
  • Part number RH-5049 for ordering and verification

Detailed Description

The Arnott RH-5049 headlight level sensor measures the distance between the chassis and the road surface and sends that information to the ECU. The system then uses the signal to adjust air suspension compressor output and maintain correct vehicle stance and lighting alignment. This sensor is a direct-fit replacement for the rear left position on 2015 Audi A3, 2015 Volkswagen Golf, and 2015 Volkswagen Golf SportWagen applications. Use RH-5049 when replacing a worn or damaged ride height sensor on vehicles that rely on electronic leveling control.

What It Helps Fix

  • Incorrect headlight aim caused by faulty ride height input
  • Suspension height readings that are inconsistent or erratic
  • Air suspension control issues related to sensor wear
  • Damage from road debris, water, salt, or impact exposure
  • Warning lights or leveling faults tied to sensor failure

Installation Notes and Tips

Verify rear left fitment before installation and match the connector style, terminal count, and mounting location to the original sensor. Inspect the linkage, wiring, and surrounding suspension components for corrosion or damage before installing the new unit. Confirm proper calibration or system relearn procedures after replacement if required by the vehicle.

Quality Assurance

Arnott supplies new aftermarket suspension and sensor components built for OE-style replacement needs. RH-5049 is manufactured as a new part and is intended to restore accurate ride height signal input for the listed Audi and Volkswagen applications.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelFuel TypePositionNotes
2015AudiA3DIESELRear Left—
2015VolkswagenGolfDIESELRear Left—
2015VolkswagenGolf SportWagenDIESELRear Left—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
5Q0512521E