Mercedes C118 Headlight Indicator Transmission Switch Squib Stalk A1779006818

The Mercedes C118 Gear Shift and Light Stalk Switch is an original part from the switches and controls group, designed to work with an automatic transmission. It's a functional solution for drivers who expect precise control over gears and lighting while maintaining the factory ergonomics of a Mercedes interior.

Specifications and technical data

• SKU: A1779006818
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779006818
• Substitutable numbers: A1779006818, A 177 900 68 18
• Gearbox type: Automatic
• Part type: Knob
• Category: Switches & Controls

Purpose and Function in the Control System

The Mercedes C118 Gear Shift and Light Stalk Switch belongs to the switches, controls, and ignition switches category, responsible for operating the gear changes in an automatic transmission and lighting functions. Using a single module for multiple tasks allows for consistent, convenient operation from the steering column.

The stalk switch works with the vehicle's electronic system, transmitting signals to the transmission control unit and the lighting system. This provides the driver with:

• precise control of driving modes in the automatic transmission,
• intuitive lighting operation without taking hands off the steering wheel,
• seamless integration with factory safety and comfort systems.

Construction and Integration with Automatic Transmission

The switch has been specifically designed to work with an automatic transmission, ensuring appropriate operational logic and communication with the vehicle's electronics. The stalk's construction allows for:

• clear selection of transmission positions (e.g., driving modes, park position),
• stable lever positioning during use,
• reliable operation of electrical contacts responsible for transmitting signals to control units.

As a control component, the stalk is intended for installation on the steering column, maintaining factory mounting points and wiring harness routing.

Product Characteristics and Service Application

The offered switch comes from the Mercedes line, meaning it retains original geometry, ergonomics, and compatibility with the vehicle's factory systems. It is a used part, intended for:

• post-accident repairs when the steering column or control elements have been damaged,
• rectifying electrical faults related to incorrect gear selection or lighting operation,
• restoring full cockpit functionality while preserving the original interior appearance.

Choosing an original part from disassembly allows for consistency with other control system components, without the need for aftermarket adaptations.

Benefits of Using an Original Switch

Using the factory stalk switch in a Mercedes C118 offers a range of practical benefits:

• Factory Fitment – maintains original mounting points and correct positioning relative to the steering wheel.
• Consistent Ergonomics – lever layout and travel are consistent with the factory design, facilitating intuitive operation.
• Electronic Compatibility – proper cooperation with control modules for the automatic transmission and lighting.
• Cost-Effective Repairs – a used OEM part helps reduce expenses while maintaining high quality of workmanship.

This solution is particularly beneficial for users who want to keep their vehicle in a configuration close to factory specifications, without compromising the functionality of switches and control elements.

More Switches for Mercedes and Knowledge about Used Parts

If you are looking for other Mercedes switches, controls, and ignition switches, check out our dedicated category: Mercedes switches, controls, and ignition switches. You will find a wide selection of control components tailored for various models of this brand.

Learn more about the advantages of using original disassembled parts in cars of this brand in the article: Used Mercedes Parts – Original Components from Disassembly, which describes how to sensibly combine OEM quality with optimal service costs.