BMW fault code 0033

Automatic heating/air conditioning

In the automatic heating/air conditioning, code 0033 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.

Actuator Y right

Module versions: Automatic heating/air conditioning (IHKA38), Heating/air-conditioning regulation (IHKR38)

In: 3 Series (E46) 1998–2006, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

free 0x33

Module versions: Automatic heating/air conditioning (IHKA38_2), Automatic heating/air conditioning (IHKA38_3)

In: 3 Series (E46) 1998–2006, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

IHKA: Inside-sensor fan

Module version: Automatic heating/air conditioning (IHKA39_5)

In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, 5 Series (E39) 1998–2003, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

IHKA: K bus, outside temperature

Module version: Automatic heating/air conditioning (IHKA85)

In: X3 (E83) 2003–2010, Z4 (E85) 2002–2008, Z4 (E86) 2006–2008

Latent heat storage shut-off valve

Module version: Heating control (IHR39)

In: 5 Series (E39) 1995–1998

Reading and clearing it

Fault code 0033 is a BMW code, stored in the car's automatic heating/air conditioning, 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 automatic heating/air conditioning is on: 3 Series (E36), Z3 (E36/7), 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)

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