Push Start Stop Button Replacement for Mercedes M-Class W166 (2012 to – Euro Premium Parts
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Push Start Stop Button Replacement for Mercedes M-Class W166 (2012 to 2014)

€4395
Impuestos incluidos. Los gastos de envío se calcularán al momento de pagar.

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Push Start/Stop Button Replacement for Mercedes M-Class W166 (2012–2014)

The M-Class W166 replaced the W164 with a more refined cabin, new technology, and a bolder design language. At the heart of that technology suite is the KEYLESS-GO push-button start — a feature that, in the W166, became central to the driving experience rather than an optional extra. After several years of daily use, the button's factory finish shows the familiar signs: a worn centre face and a chrome ring that has lost its original lustre.

This direct replacement unit restores the button to original condition and costs a fraction of what a dealer would charge.

Looking to upgrade the interior of your car? Also visit the Mercedes section of our aftermarket parts shop.


Compatible Mercedes Models

Mercedes-Benz M-Class (W166) – 2012 to 2014

Mercedes-Benz ML 350 (W166) – 2012 to 2014

Fits W166 vehicles with factory KEYLESS-GO push-button start. Verify your button style against the product images before ordering.


Refined Cabin, Realistic Wear

The W166 interior was a significant step forward for the M-Class — better materials, a more coherent layout, and a premium feel that held up well in the early years. The KEYLESS-GO start button, however, is a high-contact surface. It is used every time the vehicle moves. Over 100,000+ presses across a decade of ownership, the button cap surface develops visible wear at the contact point, and the chrome surround picks up micro-scratches from key fobs, jewellery, and sleeve contact.

This is normal wear for a component at this price point. The correct response is a direct replacement, not a cleaning attempt.

What the Replacement Covers

The complete outer switch assembly — button cap, chrome ring, and retention hardware — as a pre-assembled unit ready to plug in. No electronics modification required.

Installation

Access the rear of the button, disconnect the plug, release the retention clip, and remove. Fit the replacement, reconnect, and test. The process takes 10 to 15 minutes and requires no dashboard removal.


Why This Replacement Is Worth It

Complete button unit — cap, chrome ring, and mounting included

Targeted fix for the W166's most frequently worn interior component

No KEYLESS-GO recoding — the system operates as standard immediately

Significant saving versus a Mercedes dealer replacement

Explore all parts and accessories for Mercedes, browse our full range of replacement interior buttons and controls, and discover more in our interior trims collection.

Acerca de Euro Premium Parts

Bienvenido a Euro Premium Parts, su fuente de confianza para accesorios y mejoras de alta calidad para BMW, Audi, Volkswagen y Mercedes-Benz.

Abrimos esta tienda por una auténtica pasión por los coches europeos y un objetivo simple: facilitar a los entusiastas encontrar piezas fiables, "plug-and-play" que encajen perfectamente y ofrezcan una excelente relación calidad-precio.


Nuestra misión

Nuestra misión es simplificar la forma en que mejora su coche.
Cada producto de nuestro catálogo es cuidadosamente preseleccionado por su calidad, ajuste y fiabilidad general, para que no tenga que perder tiempo buscando entre interminables listados.
Todos nuestros artículos son plug & play, fáciles de instalar, y están respaldados por una garantía de 1 año.
Y porque un gran servicio no debería implicar costes adicionales, el envío es siempre gratuito.



Un equipo de amantes de los coches en el que puede confiar

Euro Premium Parts está construido y gestionado por entusiastas de los coches que entienden lo que los conductores esperan al mejorar sus vehículos.
Sabemos lo frustrante que puede ser lidiar con problemas de compatibilidad o instalación, por lo que nuestro equipo de soporte está disponible para ayudar en cada paso del camino.
Nuestro objetivo es hacer que cada compra sea fluida, transparente y sin preocupaciones.

 


Por qué los conductores nos eligen

- Productos seleccionados por su calidad y compatibilidad

- Envío gratuito en todos los pedidos

- 1 año de garantía en cada producto

- Atención al cliente útil y receptiva

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Hay muchas tiendas en línea que venden piezas de coche, pero pocas se centran en la fiabilidad, la compatibilidad y el servicio al cliente como nosotros.

 


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Ya sea que conduzca un cupé deportivo, una berlina de lujo o un SUV moderno, nuestro catálogo está diseñado para ayudarle a personalizar y mejorar su coche con confianza.
Actualizamos constantemente nuestra selección basándonos en lo que nuestros clientes más desean, manteniéndonos fieles a nuestro compromiso con la calidad y la simplicidad.

 


Su socio en estilo y rendimiento automotriz

Cuando compra en Euro Premium Parts, está eligiendo más que solo productos: está eligiendo un equipo que valora la calidad, la fiabilidad y un servicio honesto.
Cada pedido se maneja con cuidado y cada cliente importa.

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Euro Premium Parts — Excelencia europea, entregada.

Preguntas Frecuentes

ENVÍO

How long does delivery take?

Most orders ship within 24–48 hours. Delivery times generally range from 5 to 10 business days depending on your location and the product ordered.

How much is the shipping?

Shipping is completely free for all orders, without minimum order amount.

INSTALACIÓN

Are your products compatible with my vehicle?

Can I install the product myself?

Most of our accessories are designed for easy plug-and-play or bolt-on installation. We also provide DIY tutorials and support if needed. For some products like spoilers or carbon trims, professional installation is recommended.

DEVOLUCIONES Y REEMBOLSOS

Do you provide customer support after purchase?

Yes! Our customer support team is available to help with compatibility questions, installation advice, or any issue that may arise after your order.


Is there a warranty on the products?

Absolutely — every product is covered by a 1-year warranty against defects. If you experience any issue, we’re here to help.

What if the item doesn’t fit or I change my mind?

No stress — we offer a 30-day return policy from the day you receive your item. Just contact us and we’ll guide you through the process.