Hella 010966551 Brake Light Switch

Brake Light Switch for Mercedes-Benz ML320 and ML430

This Hella brake light switch is a direct replacement electrical switch for the brake pedal circuit. It uses a mechanical push design with a normally closed contact to activate the brake lamps when the pedal is pressed, helping maintain consistent brake light operation on the 1998-1999 Mercedes-Benz ML320 and 1999 Mercedes-Benz ML430.

Key Features

• Brand: Hella
• Brand line: Genuine OE from HELLA
• Part number: 010966551
• Brake light switch with push-type actuation
• Mechanical operating mode
• 4-pin design with 1 female connector
• Blade terminals, male terminal gender
• Direct replacement electrical switch for brake pedal signaling

Product Details

Built as a brake pedal switch, this Hella 010966551 unit completes the brake lamp circuit when the pedal is pressed so following drivers receive a clear stop signal. The 4-pin connector and blade-terminal layout support OE-style electrical connection, while the mechanical push operation matches the original switch function used on Mercedes-Benz ML320 and Mercedes-Benz ML430 applications listed below. Genuine OE from HELLA identifies this product line as an OE-focused replacement option for vehicles that require precise switch operation at the pedal assembly.

This part cross-references Febi-Bilstein 36745 and Gates 51557 for the same application.

Vehicle Fitment

• Fits 1998-1999 Mercedes-Benz ML320, N/A. Notes: 4-Pin Connector - Mechanical; Genuine OE from HELLA
• Fits 1999 Mercedes-Benz ML430, N/A. Notes: 4-Pin Connector - Mechanical; Genuine OE from HELLA

Common Issues This Part Can Address

• Brake lamps that do not illuminate when the pedal is pressed
• Intermittent stop-light operation caused by a worn pedal switch
• Brake light circuit faults related to a failed 4-pin switch
• Incorrect brake signal input to the vehicle electrical system
• Pedal switch replacement needs on Mercedes-Benz ML320 and ML430 models

Installation Notes and Tips

Verify the connector style, terminal count, and switch type before installation. This brake light switch uses a 4-pin female connector with blade terminals and does not include mounting hardware or a wiring harness. Installation should be performed by qualified personnel, and the switch should be checked for proper pedal engagement and brake lamp function after replacement.

Quality Assurance

Hella Genuine OE from HELLA parts are built to match original equipment requirements for electrical fit and function. Confirm the part number 010966551 against the existing switch and vehicle application before installation.