ZF Services UK has advice for technicians replacing the concentric slave cylinder (CSC) on the 2006-on Vauxhall Corsa and other similarly equipped GM models.
Warranty claims have arisen due to incorrect fitting procedures, where the red transportation lock on a Sachs CSC has either been removed prior to installation or left in place after installation. In either case, cylinder damage can result, causing fluid leaks.
The correct process is to install the CSC complete with transportation lock into the transmission housing, tighten the bolts to the correct torque, then remove the transportation lock by pulling its red tab.
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