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Oscilloscope Measurement On System Locks: Requirements: Notes

The fuse for the central locking system F57 (up to 09/07) or F73 (as of 09/07) must be replaced. The 15 A fuse is to be replaced by a 20 A fuse! Use a 20 A fuse, even if a 15 A fuse is still indicated on the circuit diagram or on the fuse board!

IMPORTANT: A door lock may only be replaced if its failure or preliminary damage has been determined beyond doubt by means of an oscilloscope measurement.
It is possible that simply replacing the 15 A fuse with a 20 A fuse is effective.