MAN TG3 HydroDrive Wiring Diagrams – TGX/TGS Euro 6d (Q4 2020)

OEM wiring set outlines the complete HydroDrive (Hydrostatische Vorderachse) system for MAN TG3 TGX/TGS Euro 6d trucks, as published by MAN Truck & Bus SE (Werk München), Q4 2020. The HydroDrive system is a hydraulically driven front axle solution that activates under traction-demanding conditions, typically used in off-road or municipal transport applications.

🛠️ System Components & Functions:

• Solenoid Valves (Y305):

  • Y384.1 – Clutch valve (main pump)

  • Y385.1 – Main valve 1

  • Y386.1 – Main valve 2

  • Y387.1 – Feed pump valve

• Sensors:

  • B551.1 – Oil temperature (hydrostatic front axle)

  • B620.1 – Oil pressure (HydroDrive)

  • BV117.1 – RPM sensor (HVA pump)

• Actuators & Cooling:

  • K934.1 – Hydro fan relay

  • M196.1 – Oil cooler fan motor

• Control Modules:

  • A1358.1 – RIO

  • A1363.2 – CVM (AP025)

  • A100.1 – Zentralelektrik

• CAN/LIN Integration:

  • CAN 5 High/Low from CVM and RIO

  • LIN control via differential lock switch

• Ground/Power Paths:

  • SYS_groundNet

  • SYS_electricalPowerSupply

  • Relay and fuse routing for K280, F720.1

🧩 Additional Connectors:

• X6302, X6490, X6478, X6816 (frame-to-cab connectors for HydroDrive)

• Preconfigured with harness sets (e.g., 81.25475-0283, -0453, -6033)

Ideal for:

• Diagnosing HydroDrive activation or pressure failures

• Planning or retrofitting 4×4 hydraulic traction

• Tracing sensor feedback through CAN and LIN to CVM/ECU

• Heavy terrain fleet and refuse vehicle maintenance teams

Delivery: