BMW fault code 4578
Engine electronics
In the engine electronics, code 4578 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.
Message error (control, EKP crash disengagement, 0x135), DDE receiver, ACSM transmitter / MRS5
Module versions: Digital Diesel Electronics (D50M57D0), Digital Diesel Electronics (D50M57E0), Digital Diesel Electronics (D60M47A0), Digital Diesel Electronics (D60M57A0), Digital Diesel Electronics (D62M57A0), Digital Diesel Electronics (D70N47A0), Digital Diesel Electronics (D71N47A0), Digital Diesel Electronics (D71N47B0)
Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
DDE: Message (control, crash deactivation, EKP, 0x135)
Module versions: DDE (d70n47b0) (D70N47B0), Digital Diesel Electronics (D71N47C0), DDE (d71n47d0) (D71N47D0), DDE US-diesel fuel (D73N57C0)
Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
4578 Message (CTR_CRASH_SWO_EKP, 0x135)
Module versions: Digital Diesel Electronics (D62M57B0), Diesel electronics master (D63MM670), DDE (d73n57b0) (D73N57B0)
Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Message (control crash shutdown electric fuel pump, 0x135) incorrect, receiver DDE, transmitter KGM/ZGM
Module versions: Digital Diesel Electronics (D50M57C0), Digital Diesel Electronics (D60M57D0)
Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Message error (control EKP crash disengagement, 0x135), DDE receiver, MRS transmitter
Module version: Digital Diesel Electronics (D60PSA0)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
No message (EKP crash switch-off control, 0x135), receiver DDE, transmitter ACSM
Module version: Digital Diesel Electronics (D72N47B0)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
No message (control, crash shutdown, electric fuel pump, 0x135), receiver DDE, transmitter ACSM
Module version: Digital Diesel Electronics (D73N47A0)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Message error (control, crash shutdown, EKP, 0x135), DDE receiver, ACSM transmitter
Module version: Digital Diesel Electronics (D73N57D0)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Reading and clearing it
Fault code 4578 is a BMW code, stored in the car's engine electronics, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.
The engine electronics is on: 3 Series (E46), Z8 (E52), X5 (E53), 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X3 (E83), X1 (E84), Z4 (E85), Z4 (E86), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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