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 MANUALSBMW2004320I (E46) (CANADA) L6-2.2L M54REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSDESCRIPTION AND OPERATIONTRANSMISSION CONTROL GS8.34 (EGS TRANSMISSION CONTROL 8.34)SHIFT-LOCK (FUNCTIONAL DESCRIPTIONS)
2004 BMW 320i (E46) (CANADA) L6-2.2L M54
Shift-Lock (Functional Descriptions)
2004 BMW 320i (E46) (CANADA) L6-2.2L M54SECTION Shift-Lock (Functional Descriptions)
Shiftlock
It is only possible to shift out of the positions "P" or "N" after evaluation of the signals:
- Brake (brake light switch or brake light test switch)
- Road speed
- Engine speed
- Time
The selector lever is locked when no brake signal is detected with the engine running and the vehicle stationary. A time delay function of approx. 0.5 s is used for operation under winter conditions. The brake light switch is designed as a normally-opened contact referred to 12 V and the brake light test switch as a normally-open contact referred to ground. The shift lever is locked by way of a solenoid on the selector lever switch.
RENDER: 1.0x
NO RELATED
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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.