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Home >> BMW >> 2012 >> 335i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P0478 (BMW DTC 138101) Through DTC P0440 (BMW DTC 191D01) >> DTC P13A3; BMW DTC 152408: Super-knocking, cylinder 4: Injection switch-off >> Fault description

Fault description

The diagnostic function responds to extreme combustion knock by deactivating the injection at the 4th cylinder.

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