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Home >> BMW >> 2003 >> M3 2D Convertible >> Repair and Diagnosis (Single Page) >> Transmission >> Manual Trans >> SMG II - Overview >> SMG II >> System Components >> SMG II Control Unit Inputs/Outputs >> SMG II Control Unit Outputs >> Hydraulic Unit
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Hydraulic Unit

The Hydraulic Unit is energized through a relay controlled by the SMG II Control Unit. The operation of four (4) solenoid valves located in the hydraulic unit that are used to actuate the clutch and shift the transmission are also controlled by the SMG II.

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