1. Loosen the coupling as shown using the special tool (1893778).
Only use the tool to disengage the locking mechanism.
Pull the coupling to release it from the actuator housing and do not use the tool as a lever.
2. Thoroughly clean the inner side of the actuator with a clean towel.
Do not use chemicals or aggressive cleaners to clean the Schäfer coupling and actuator.
Make sure that the connection of the actuator is free of any debris and no dirt enters the coolant circuit of the actuator.
Release tool cool water pipe. Tool for removing coolant pipes from EGR and back pressure valve.
