BMW fault code 273D
Engine electronics
In the engine electronics, code 273D 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.
DME: Ignition coil, cylinder 1, ignition-circuit monitoring
Module versions: Engine electronics (ME17N45), Engine electronics (MED17_2), Engine electronics (MED17_2N), Engine electronics (MEV17_2), Engine electronics (MEV17_2N), Engine electronics (MEV17N46)
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.
DME: Oxygen sensor, part/full-load diagnosis, before cat., bank 2
Module versions: Engine electronics (MS_S65_2), Engine electronics (MS_S65_3), Engine electronics (MSS60)
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.
DME: Catalytic converter conversion, bank 2 (CDKKAT2 Catalytic Converter Conversion Bank 2)
Module versions: Engine electronics (ME9E65_6), Engine electronics (ME9K_NG4)
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.
DME: Catalytic converter conversion, bank 2
Module versions: Engine electronics (ME9N62), Engine electronics (MS450DS0)
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.
CDKKAT2 - Catalytic Converter Conversion (Bank 2)
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: Oxygen sensor before cat. converter, bank 2, partial/full load diagnosis
Module version: Engine electronics (MS_S65)
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.
Ignition coil cylinder 1, ignition circuit monitoring
Module version: Engine electronics (MV1722)
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 273D 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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