VXDIAG Failed to Access Benz W213 Engine Module Error C003 Solution

Problem:

VXDIAG VCX SE Benz with 2025.03 xentry software failed to scan W2213 MRD2 engine control module.
It reported an error C003. Any solution?

VXDIAG-Benz-W213-MRD2-error-c003-1 VXDIAG-Benz-W213-MRD2-error-c003-2

Solution:

This error is usually caused by an issue with the Zenzefi certificate. Either the Zenzefi certificate has not been imported, or there is a problem with the imported certificate.

Diagnosing newer Mercedes models, such as the W213, W206, W223,W465 etc, requires importing a Zenzefi certificate into the XENTRY software.