Ignition Switch Mercedes W204 W207 Key Reader Lock Remote Control A2079057201

Ignition Switch Mercedes W204 W207 Key Reader Lock Remote Control is an original component from the Ignition Accessories group, designed to work with the factory remote control and immobilizer system. This used module ensures compatibility with the vehicle's electronics, which facilitates servicing and reduces the risk of engine starting issues.

Specifications and technical data

• SKU: A2079057201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2079057201
• Substitutable numbers: A2079057201, A 207 905 72 01, KD
• Category: Ignition Modules

Purpose and function in the ignition system

The Ignition Switch Mercedes W204 W207 Key Reader Lock Remote Control plays a key role in the starting authorization area, integrating the functions of a key reader, steering column lock, and remote control of central vehicle functions. It is responsible for securely transmitting the signal to the ignition system and communicating with the body electronics.

By using an original solution from the Ignition Accessories group, compatibility with the factory software and electrical architecture of the car is maintained, which is important for diagnostics and potential programming at a service center.

Construction and integration with vehicle electronics

The module combines several functions in one housing: a mechanical column lock, an electronic key reader, and remote control support. This design reduces the number of connections and connectors, which positively affects the stability of the ignition system.

The element is designed as part of the Mercedes OEM system, which ensures that it:

• maintains the correct mounting points on the steering column,
• works with factory electrical harnesses,
• is prepared for integration with the vehicle's security system.

Condition and service application

The offered item is used, making it an attractive cost-effective alternative for ignition system repairs in Mercedes W204 and W207 models. Such components are often chosen in cases of:

• problems with the vehicle recognizing the key,
• steering column lock malfunctions,
• failures of the module responsible for starting the engine.

Using an original module from disassembly allows for maintaining consistency with other electrical installation components, which is essential for vehicles equipped with advanced comfort and safety systems.

Benefits of choosing an original ignition module

Compared to aftermarket replacements, the original Ignition Switch Mercedes W204 W207 Key Reader Lock Remote Control offers:

• factory fitment to the steering column and vehicle interior,
• predictable behavior in the diagnostic system,
• full functionality of remote control and immobilizer after proper adaptation.

For workshops and users, this means stable operation of the ignition system and a lower risk of incompatibility with the vehicle's electronics.

Expanding ignition system upgrades

If you are planning a comprehensive repair or upgrade of the ignition system area in your Mercedes and need other elements from the same group, such as control modules, additional switches, or security components, check out the available parts in the Mercedes Ignition Accessories category.

To better plan your vehicle interior upgrade and improve ergonomics during daily use, it is also worth checking out our guide on seat comfort – you will find practical tips in the article Interior metamorphosis: how branded seats from disassembly improve comfort and car value.