Mercedes-Benz A B W169 W245 Ignition Switch Lock Control Module A1695451508

Mercedes-Benz A B W169 W245 Ignition Switch Lock Control Module is an original component from the Switches, control elements and ignition locks group, designed for the ignition system in Mercedes compact class vehicles. This used OEM component allows for maintaining the factory ignition control logic, immobilizer, and steering column lock, which translates into stable operation of the vehicle's electronics.

Specifications and technical data

• SKU: A1695452008
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1695451508
• Substitutable numbers: A1695451508, A 1695451508, A 169 545 15 08, A1695452008, A 1695452008, A 169 545 20 08, ŁS
• Category: Switches & Controls

Purpose and technical function

The described ignition switch is a component of the ignition control system in Mercedes A-Class and B-Class models of the W169 and W245 generations. It is responsible for:

• initiating power to the vehicle's electrical system,
• transmitting the signal to the engine start system,
• cooperating with the vehicle's security system,
• mechanical positioning of the key in individual operating modes.

By maintaining the original design of the ignition switch, the control system remains consistent with the factory electrical architecture of the Mercedes, which facilitates diagnostics and service.

Construction and compatibility in the control system

The ignition switch is designed as a component that works with the steering column and electronic modules responsible for starting and securing the vehicle. The design provides for:

• precise key operating positions (lock, ignition, start),
• stable connection with the wiring harness,
• maintaining the original operating characteristics of the switch.

The used OEM component allows for maintaining consistency with the factory software and control logic, which is particularly important in modern Mercedes electronic systems.

Benefits of using an original used ignition switch

Using an original ignition switch instead of a worn or damaged component brings a number of practical benefits:

• Factory fit – maintaining the original geometry and mounting points facilitates installation and minimizes the risk of fitment issues.
• Consistency with vehicle electronics – the switch works with security systems and controllers in accordance with the manufacturer's specifications.
• Reasonable repair cost – the used OEM component allows for reducing expenses compared to purchasing a new part, while maintaining the correct operating parameters.

For vehicles used on a daily basis, this is a practical solution that allows restoring the proper operation of the ignition system without interfering with the electrical installation.

Condition and service application

The offered ignition switch is an aftermarket component intended for service applications in Mercedes vehicles. It works well both for typical replacement of a worn switch and for repairs after mechanical damage to the steering column or problems with starting the vehicle. Maintaining the original design facilitates work for workshops specializing in the Mercedes brand.

If you are planning a comprehensive repair or upgrade of the ignition control zone in your Mercedes and need other elements from the same group, such as ignition locks, function switches, or control modules, check the available parts in the Mercedes switches, control elements and ignition locks category.

More about used parts and Mercedes electronics

When selecting used control elements for a Mercedes, it is worth paying attention to the origin of the parts and their compatibility with the specific vehicle configuration. Practical tips on choosing original components from dismantling can be found in the article Used parts for Mercedes – original components from dismantling, which discusses, among other things, the cost-effectiveness of using premium components from the secondary market.

If you are interested in a broader context of using used automotive electronics – controllers, comfort modules, or sensors – you will also find helpful information in the guide Second life of electronics – when is it worth choosing used modules and controllers.