Standard Ignition SLS-259 Brake Light Switch

Brake Light Switch for BMW and Land Rover

Standard Ignition SLS-259 is a 12-volt brake light switch built with a spring activation style and push-in attachment method. It uses a single oval connector with 4 terminals, making it a direct-fit electrical replacement for select BMW and Land Rover applications, including BMW 3 Series, 5 Series, 7 Series, Z3, M3, and Land Rover Discovery and Range Rover models.

Key Features

• Brake light switch for 12-volt vehicle electrical systems
• 4-terminal design with female connector and male pins
• Oval 1-connector layout for select OE-style applications
• Spring-actuated switch with push-in mounting
• Plastic housing with black, red, and white finish
• Standard Ignition SLS-259 replacement part number

Detailed Description

Standard Ignition SLS-259 is a brake light switch designed for vehicles that use a 4-pin connector and push-in mounting style. It is listed for a wide range of BMW and Land Rover models, including Fits 1996-2002 BMW Z3, N/A; Fits 1998-1999 BMW 318i, N/A; Fits 1996-1999 BMW 328i, N/A; Fits 1995-1999 BMW M3, N/A; Fits 1994-1997 Land Rover Discovery, N/A; and Fits 1990-1995 Land Rover Range Rover, N/A. The SLS-259 also cross-references Beck/Arnley 201-1624 for the same application.

As a brake light switch, this component signals the stop lamps when the pedal is pressed and supports proper brake lamp operation in compatible BMW 525i, 735i, 750iL, 850i, and Cadillac Catera applications. The plastic construction, spring activation, and pin-style terminals are suited to OE-style electrical replacement work where connector shape and terminal count must match the original part.

Common Problems This Part Can Help Solve

• Brake lamps that do not illuminate when the pedal is pressed
• Intermittent stop light operation caused by a worn switch
• Brake light warning concerns related to switch failure
• Cracked, loose, or unreliable connector engagement at the pedal switch
• Electrical contact issues in vehicles using a 4-pin brake switch

Installation Notes and Tips

Verify the connector shape, terminal count, and mounting style before installation. This part uses a female connector, male terminals, and push-in attachment, and it does not include a wiring harness, mounting bracket, or hardware. Confirm vehicle-specific fitment details, especially on BMW models noted with a 4-pin connector, before replacing the original brake light switch.

Quality Assurance

Standard Ignition supplies this brake light switch as an OE-style replacement electrical component for select BMW and Land Rover vehicles. Part number SLS-259 is built to match the listed connector and terminal configuration for direct replacement use in the specified applications.