Professional file processing and full bench service for VAG Bosch ESP 9.0 ABS/ESP units, equipped with 95256 EEPROM.

Available operations: DTC C123E:F0 Reset and Cloning between compatible units.

DTC C123E:F0 – Hydraulic brake booster: intervention limit reached
Indicates the intervention limit of the Hydraulic Boost Compensation (HBC) system has been reached, often associated with brake booster vacuum anomalies. The error may remain permanent and cannot be cleared via diagnostics.

DTC Reset is available via EEPROM dump or by sending the unit to the lab, following resolution of the original fault and verification of braking system safety.

Cloning requires full bench service only, with both original and replacement units sent to us.

The ECU shown in the images is not included.