E 500 4MATIC Wagon (211.283) V8-5.0L (113.969) (2004)
Component Identification
Task
The fully integrated transmission control (VGS) control unit (Y3/8n4) determines the instantaneous operating condition of the vehicle and actuates all
gear change sequences taking ease of shifting and driving situation into consideration. It receives operating data as transmission-internal signals from
the:
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Selection range sensor (VGS) (Y3/8s1)
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Transmission oil temperature sensor (VGS), which is integrated into the fully integrated transmission control (VGS) control unit (Y3/8n4)
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Turbine speed sensor (VGS) (Y3/8n1)
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Internal speed sensor (VGS) (Y3/8n2)
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Output speed sensor (VGS) (Y3/8n3)
Data exchange with the following control units takes place via CAN-C (CAN-C):
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Instrument cluster (A1)
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CDI control unit (with diesel engine)
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ME-SFI [ME] control unit (N3/10) (with gasoline engine)
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Electronic selector lever module control unit (N15/5)
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ESP control unit (N47-5)
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With code (219) Distronic (DTR) DTR control unit (N63/1) (up to 31.5.04) or DTR controller unit (as of 1.6.04)
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EIS [EZS] control unit (N73)
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Steering column module (N80)
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Central gateway control unit (N93)
The fully integrated transmission control (VGS) control unit (Y3/8n4) actuates the following components:
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Working pressure control solenoid valve (VGS) (Y3/8y1), for load dependent and gear-specific working pressure control
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Clutch control solenoid valve K1 (VGS) (Y3/8y2)
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Clutch control solenoid valve K2 (VGS) (Y3/8y3)
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Clutch control solenoid valve K3 (VGS) (Y3/8y4)
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Brake control solenoid valve B1 (VGS) (Y3/8y5)
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Brake control solenoid valve B2 (VGS) (Y3/8y6), which also actuates the BR multi-disk brake for reverse gear
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Brake control solenoid valve B3 (VGS) (Y3/8y7)
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Torque converter lockup clutch control solenoid valve (VGS) (Y3/8y8)
This involves the processing of the following data from other systems: