Problem:
Tried to scan a Mercedes E class W213 with VXDIAG VCX SE Benz scanner and 2025.09 Xentry. Diagnosis will not proceed. System reported an error authentication has failed and gave fault number C003.
How to fix it?
Solution:
Xentry 2025 C003 error indicates missing Zenzefi certificate.
Diagnosing newer Mercedes models, such as the W213, W206, W223,W465 etc, requires importing a Zenzefi certificate into the XENTRY software.
We do not provide certificates. If you have a Zenzefi certificate, you can import it into the software. For software purchased from us, if issues persist after importing the certificate, please contact our customer support for assistance.