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 MANUALSBMW1987L7 (E23) L6-3430CC 3.4L SOHC (M30)REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSDESCRIPTION AND OPERATIONFUNCTIONAL DESCRIPTIONREVERSE LOCK
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Reverse Lock
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Reverse Lock
Reverse Lock
The reverse lockout function prevents hydraulic shifting of the reverse gear at a vehicle speed greater than 5 mph (8 km/h). Neutral is engaged instead of reverse if the selector lever is moved to position R, before the vehicle speed has dropped below 5 mph (8 km/h).
This function is performed by the solenoid valve 2.
The reverse lockout function prevents hydraulic shifting of the reverse gear at a vehicle speed greater than 5 mph (8 km/h). Neutral is engaged instead of reverse if the selector lever is moved to position R, before the vehicle speed has dropped below 5 mph (8 km/h).
This function is performed by the solenoid valve 2.
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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.