Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2001320I (E46) (CANADA) L6-2.2L M54REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSDESCRIPTION AND OPERATIONTRANSMISSION MANAGEMENT SMG (SMG SEQUENTIAL MANUAL TRANSMISSION)CONTROL MODULE (FUNCTIONAL DESCRIPTIONS)CONTROL MODULE, INTERNAL FAULT
2001 BMW 320i (E46) (CANADA) L6-2.2L M54
Control Module, Internal Fault
2001 BMW 320i (E46) (CANADA) L6-2.2L M54SECTION Control Module, Internal Fault
H SMG Transmission
Functional description see BMW Technology: TIS -> Document >>- SI Technology - SBT Numbers: - for E46: 2301 03 002 - for E85:2302 03 021
Sequential Manual Transmission SMG means that in contrast to conventional manual transmissions the clutch control and gear changes are automated. An electrohydraulic control system handles the functions that are otherwise performed by the driver shifting with the clutch pedal, gear lever and accelerator pedal.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.