BMW E46 E53 E83 E85 Radio Remote Alarm Key Fob Button Ignition Switch 433 MHz

The BMW E46 E53 E83 E85 Ignition Switch Key 433 MHz is an original ignition system component designed for select BMW models. This used ignition switch with key ensures factory fit, stable ignition system operation, and compatibility with the vehicle's electrical system.

Specifications and technical data

• SKU: 6955747-3
• Mark: BMW
• Condition: Used
• OEM Part Number: 6955747
• Substitutable numbers: 66126955747, 6955747, 66126955749 66126933723 66126933725, 66128377376 66128377788, 6955749 6933723, 6933725 8377376 8377788
• Category: Other Ignition Systems & Components

Purpose and compatibility

This 433 MHz ignition switch with key is designed to work with select BMW E46, E53, E83, and E85 models. This ensures compatibility with the factory electronics, communication bus, and immobilizer system, which is crucial for the vehicle's proper operation.

The component is disassembled, ensuring the user receives a part with parameters consistent with the manufacturer's standard solutions. This is especially important for components responsible for starting and key authentication.

Construction and function of the ignition switch

The ignition switch serves as the central control point for the ignition system – it unlocks the steering column, initiates power to the system, and activates the starter. When used with a 433 MHz key, it interacts with the vehicle's security system, providing:

• correct identification of the key by the car's electronics,
• stable switching of ignition positions (ACC, ON, START),
• integration with the factory immobilizer and comfort modules.

The original design ensures adequate mechanical strength and proper fit with the steering column and interior covers.

Benefits of using an original used ignition switch

Using an original, used ignition lock with key in a BMW brings a number of practical benefits:

• Factory fit – the part comes from the same design family as the components assembled on the production line.
• Consistency with vehicle electronics – maintained compatibility with control modules and security systems.
• Reduced assembly problems – no need for mechanical modifications or adaptation of mountings.
• A reasonable cost-quality compromise – a used OEM component is an attractive alternative to new substitutes of unknown origin.

Used condition means traces of use, however, with proper technical verification, the ignition switch retains the functionality required for further operation in the vehicle.

Assembly and technical aspects

Replacing the ignition switch in a BMW requires following procedures related to the vehicle's security system and electronics. It is recommended that installation be performed by someone experienced in:

• immobilizer systems and key synchronization,
• dismantling the steering column covers,
• diagnostics of comfort and ignition modules.

Before purchasing, it is worth comparing the part designations and interchangeable numbers in the technical specifications of the offer with the vehicle documentation or information from the manufacturer's catalogue to confirm compatibility with a specific equipment version.

Other BMW ignition locks and technical materials

If you're looking for other ignition locks for BMW, check out the available products in the BMW ignition locks category. This allows you to easily compare different variants based on body generation, equipment configuration, and installation requirements.

Users interested in electrical systems and lighting may find the headlight and accessory selection guide useful, available here: Complete Guide to Selecting and Replacing Used LED and Xenon Headlights in BMW . This article helps you better understand the importance of original OEM components in the safety and reliability of your electrical system.