BMW fault code 27C8
Engine electronics
In the engine electronics, code 27C8 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.
CDKCFC - Check Filler Cap
Module versions: Engine electronics (ME9E65_6), Engine electronics (MEV9N46)
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, signal behind cat., bank 1 (OPENLOAD diagnosis post-catalyst)
Module versions: Engine electronics (MS_S65_2), Engine electronics (MS_S65_3)
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.
CDKLDP - LDP System
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: Tank-leak diagnosis DMTL - major leak
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.
INDEX_184_INJ
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.
DME: Oxygen sensor behind catalytic converter, bank 1, signal (electrical)
Module version: Engine electronics (MSS60)
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: Fuel tank ventilation system and purge air system, minor leak (CDKTESG DM-TL gross)
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 27C8 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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