BMW fault code 2774
Engine electronics
In the engine electronics, code 2774 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.
Air volume, plausibility: Air volume too high
Module versions: Engine electronics (MEVD174K), Engine electronics (MEVD176K), Engine electronics (MEVD17KW)
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.
Run-flat system: DC/DC converter switch-off (overload current)
Module version: Engine electronics (EDME82)
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.
CDKMEMUM - Monitoring cyclic error storage
Module version: Engine electronics (ME9K_NG4)
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.
DME: Engine switch-off time, plausibility
Module version: Engine electronics (ME9N62)
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.
CDKCUHR - CAN error / relative timer
Module version: Engine electronics (MEV9N46)
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.
DME: CAN message, engine shutdown time
Module version: Engine electronics (MS450DS0)
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.
Air mass, plausibility: Air mass too high
Module version: Engine electronics (MVD1722)
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.
DME: System time, power module
Module version: Engine electronics, cylinder bank 1 (N73_R0)
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 2774 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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