A0005458916 / 5WP20124AM Mercedes-Benz Electronic Ignition Control Module.

Description:

The A0005458916 / 5WP20124AM is an Electronic Ignition Switch (EIS) / Steering Lock Control Module used in various Mercedes-Benz models. This component is a key part of the vehicle’s Drive Authorization System, controlling ignition, steering lock release, and communication with the vehicle’s ECU to permit engine start.

OEM Part Numbers:
- Mercedes-Benz: A0005458916
- Siemens VDO: 5WP20124AM
Function: Electronic Ignition Switch (EIS) / Steering Lock Module
Role: Authenticates the key, releases steering lock, enables start sequence
Common Symptoms of Failure: No crank, key not recognized, steering lock not releasing

✅ Compatibility:

This EIS module is used in several Mercedes-Benz models, mostly from the early-to-mid 2000s:

Make	Model	Chassis	Years
Mercedes-Benz	C-Class	W203	2000–2007
Mercedes-Benz	CLK-Class	W209	2002–2009
Mercedes-Benz	E-Class	W211	2002–2009
Mercedes-Benz	SLK-Class	R171	2004–2010
Mercedes-Benz	CLS-Class	W219	2004–2010

🔍 Important: This part often needs to be programmed to your vehicle (VIN-specific coding). Replacement typically requires a diagnostic tool like XENTRY, and sometimes dealer support.

✅ Compatibility:

This EIS module is used in several Mercedes-Benz models, mostly from the early-to-mid 2000s:

Make	Model	Chassis	Years
Mercedes-Benz	C-Class	W203	2000–2007
Mercedes-Benz	CLK-Class	W209	2002–2009
Mercedes-Benz	E-Class	W211	2002–2009
Mercedes-Benz	SLK-Class	R171	2004–2010
Mercedes-Benz	CLS-Class	W219	2004–2010

🔍 Important: This part often needs to be programmed to your vehicle (VIN-specific coding). Replacement typically requires a diagnostic tool like XENTRY, and sometimes dealer support.

Shipping, returns and warranty

Worldwide shipping with tracking
30-day returns on unused, uninstalled parts
90-day limited warranty against defects

Send us your VIN and we confirm fitment before shipping. See our shipping policy and return policy.

SLK-Class R171 2004–2010

A0005458916 Mercedes Benz Electronic Ignition Control Module 5WP20124AM TCM – Continental