KEY

EZS, ELV and CAS repair

EZS, ELV, CAS, FEM, BDC and start authorization.

  • Quote before any repair
  • MRW collection across Spain
  • Written warranty

No account needed to request it.

Mercedes W204 electronic ignition switch and key reader module
HOW IT WORKS

Three steps, no surprises.

  1. 1
    Tell us about the fault

    Fill in the request with your vehicle, the symptoms and the module part number if you have it. No account needed.

  2. 2
    Get your quote

    We send you the price, turnaround time and warranty in writing. Nothing is done until you accept it.

  3. 3
    Collection and repair

    If you need it, we arrange MRW collection. You follow every stage in your client area.

DIAGNOSTIC GUIDANCE

Typical faults and symptoms

These symptoms can have different causes. The module reference and diagnostic checks help confirm the fault and assess the repair.

01

No ignition / cluster off

The system does not enable ignition or authorize starting. Power and start-system signals are checked.

02

Steering lock does not release

The ELV may have a mechanical, electrical or communication fault. Its operation is checked together with the ignition module.

03

Key not recognized / intermittent no start

The system does not validate the key or occasionally fails. Diagnostics distinguishes key, module and communication faults.

FOR YOUR QUOTE

Have these details ready

  • Vehicle make, model and year
  • Registration or chassis number (VIN)
  • Part number from the module label: a photo will do
  • What fails, when it happens and the fault codes if you have them

Missing something? Send the request anyway and we will help you find it.

OUR CUSTOMERS’ EXPERIENCES

Service reviews

Customer reviews of this service.

4 reviews
Anónimo
Review collected in person

Tenía dudas sobre si el problema era de la llave o del módulo. Me orientaron durante la revisión y quedé contento con la solución.

Anónimo
Review collected in person

Nos atendieron con un caso de autorización de arranque que teníamos en el taller. Fue útil poder hablar con alguien que conocía estos sistemas.

Anónimo
Review collected in person

Acudí por una avería del bloqueo electrónico de dirección. Después de la intervención and the comprobaciones en el coche, volvió a arrancar con normalidad.

Anónimo
Review collected in person

El coche no reconocía la llave y no arrancaba. Revisaron los componentes del sistema de arranque y me explicaron dónde estaba el problema.

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SEARCH ECUTRONIC

Tell us what is wrong or copy the reference from the label.

Try searching forMy car won’t startBMW lights not workingABS warning lightClone an ECU0281032607My repair status