Automatic Start/Stop Eliminator Deactivation Module for Mercedes C-Class W205 - 2014 to 2021

The C-Class W205 was engineered to deliver effortless performance across every driving scenario — the composed refinement of a premium executive saloon on a long motorway run, the sharp responsiveness of an AMG variant through a sweeping bend, and the smooth, unhurried feel of a well-built car in daily traffic.

The factory Start/Stop system compromises that character. Every time the engine cuts at a red light and restarts with a shudder, the experience the C-Class was built to deliver is interrupted.

This Mercedes C-Class W205 Start/Stop eliminator module removes that interruption automatically — no button press required, every single drive.

Intelligent Automatic Operation

This module works silently in the background. After a one-time setup, the Start/Stop system is suppressed automatically at every ignition cycle without any input from the driver.

Your preferred setting is locked in from the moment the engine starts. There is no need to reach for the dashboard button, no reminder to press it, and no drives where you forget and the system interrupts mid-journey.

Should you ever wish to restore factory Start/Stop behavior, the original dashboard button continues to function exactly as before. No vehicle functions are removed.

• No coding or programming required
• No ECU modification
• No OBD port errors or dashboard warnings
• Fully reversible at any time

The C-Class Deserves Uninterrupted Character

The W205 range spans from the efficient C200 diesel to the 510hp AMG C63 S — but every variant shares the same promise: a driving experience that feels composed, refined, and in control at all times.

Repeated engine cut-offs in urban traffic introduce micro-vibrations on restart and a fractional hesitation when pulling away from a standstill. In a C-Class, that hesitation is more noticeable precisely because everything else about the car is so smooth.

By keeping the engine running continuously, this module lets the C-Class behave the way it was designed to feel — from the first metre of every journey to the last.

Compatibility

Unsure about compatibility with your specific engine or specification? Contact our support team before ordering — we'll verify your vehicle.

Quick Plug & Play Installation – approx. 15 minutes

1. Remove the trim panel around the Start/Stop button and unplug the original connector

2. Connect our module inline between the factory connector and the Start/Stop button

3. Reinstall the panel → Start/Stop is now disabled at every startup

- No special tools required

- No OBD or dashboard errors

- Fully reversible installation

Why Choose This C-Class W205 Start/Stop Eliminator?

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