Home >> BMW >> 2012 >> 760Li >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N74 - Diagnostic Trouble Codes - DTC P1638 (BMW DTC 100001) Through DTC P140E (BMW DTC 110008) >> DTC P14C2; BMW DTC 106308: Variable intake manifold, self-diagnosis: mechanical fault or servomotor faulty >> Fault code