LI09.00-P-074794

Complaint Customer reports a warning message in red in the instrument cluster: "Water fording not possible! Service required". The message is no longer active following an ignition cycle. Cause As a result of an absent or aborted reference run of the air flaps of the N127 'drivetrain' control unit (PTCU), the fault codes P153001 and P153101 are stored in the fault memory and the "Water fording not possible" warning message appears in the instrument cluster. The flap system nevertheless functions correctly. Note: The fault codes must be the only ones stored in the fault memory. Additional entries in the fault memory that concern the intake air flap system could indicate a mechanical fault in the system Remedy 1. Perform software update of the N127 'powertrain' control unit (PTCU) (XENTRY data status 12/2021 or more recent)