Complaint: Immediately after starting the engine, the message “PRE-SAFE function not available” is displayed in the instrument cluster. Message displayed in the quick test: “Left front reversible belt tensioner (A76)” control unit or “Right front reversible belt tensioner (A76/1)” control unit is in loader mode.
Cause: Software fault in the left front reversible belt tensioner (A76) control unit and the right front reversible belt tensioner (A76/1) control unit.
Remedy: Perform initialization of the left front reversible belt tensioner control unit (A76) and the right front reversible belt tensioner control unit (A76/1) using CD version 09/2013 and plug-ins 3203 and 3291 or CD version 09/2013 onwards.