BMW fault code 3399

Engine electronics

In the engine electronics, code 3399 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.

Engine shut-down time, timer, instrument cluster - timer DME, comparison: Value of instrument cluster timer too low during engine overrun

Module versions: 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.

Engine switch-off time, timer, dashboard timer DME, Comparison: Value of dashboard timer too low during coastdown

Module version: Engine electronics (MEVD174K)

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.

Engine switch-off time: Too slow during after-run

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.

Reading and clearing it

Fault code 3399 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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