Operating Time Check Of SENSOTRONIC Brake Control (SBC) When Using XENTRY Diagnostics Version 7/2012 (42.46/120)

Publication date: 2012-10-03
Reference number: 42.46/120

OPERATING TIME CHECK OF SENSOTRONIC BRAKE CONTROL (SBC) WHEN USING XENTRY DIAGNOSTICS VERSION 7/2012

TECHNICAL SERVICE BULLETIN

Reference Number(s): P-B-42.46/120, Date of Issue: October 3, 2012

MERCEDES-BENZ:	MY-All, Models 199, 211, 219, 230
GROUP:	42 - Brakes

SUBJECT

MY-All, Models 199, 211, 219, 230

Operating Time Check of Sensotronic Brake Control (SBC) When Using XENTRY Diagnostics Version 7/2012

If XENTRY Diagnostics versions 07/2012 and 09/2012 are used, the service life check on the SBC hydraulic unit (A7/3) and traction system hydraulic unit (A7/3) may give an implausible result.

This manifests itself as follows:

The message "Service Brake - Service Required" appears in white lettering in the display of the instrument cluster (A1).
In the SBC control unit (A7/3n1), the fault code C249F "Check service life of component A7/3 (SBC hydraulic unit)" or C2498 "Operating time of component A7/3 (traction system hydraulic unit) has been exceed" is pending and stored.
The service life check to be performed in this case yields the result "Component A7/3 (SBC hydraulic unit) and (traction system hydraulic unit) is OK".
After completion of diagnosis and switching ignition OFF/ON or after a short driving time, the message "Service Brake - Service Required" reappears in white lettering in the instrument cluster (A1), and the fault code C249F or C2498 is pending and stored in the SBC control unit (A7/3n1).

To fix, install the following Xentry Diagnostics add-ons:

for XENTRY Diagnostics version 07/2012: add-on 2484
for XENTRY Diagnostics version 09/2012: add-on 2483