0B5A (S-Tronic) Transmission

Electrical and Electronic Components and Component Locations

Data Link Connector (DLC)





• Location: The Data Link Connector (DLC), for example, for the Vehicle Diagnosis, Testing and Information System (VAS 5051B) is located in the driver's side footwell.

• Before performing repairs on the transmission, the cause of the malfunction must be determined as accurately as possible in the operating modes "Guided Fault Finding", "Vehicle On-Board Diagnosis" and "Test Instruments" .

Direct Shift Gearbox (DSG) Mechatronic (J743), valves, sensor and transmission input RPM sensor





• Location: Direct Shift Gearbox (DSG) Mechatronic (J743) is bolted on to transmission housing on the bottom and covered by transmission oil pan.

• The mechatronic unit incorporates the hydraulic control, the Transmission Control Module (TCM), the Multi-Function Transmission Range (TR) Switch and the sensors and actuators as a complete synchronized unit.

• All components mentioned are tested by On Board Diagnostics (OBD).

Refer to => [ DSG Mechatronic ] .

Gear selector, mechatronic temperature sensor in the overview





1. Circuit board 1

2. Gear selector module

3. Gear Position Distance Sensor 1 (G487) for gear selector 2-R

4. Gear Position Distance Sensor 2 (G488) for gear selector 1-3

5. Gear Position Distance Sensor 3 (G489) for gear selector 7-5

6. Gear Position Distance Sensor 4 (G490) for gear selector 4-6

7. Clutch Oil Temperature Sensor (G509)

8. Transmission Input Speed (RPM) Sensor 3 (G641) for the clutch input speed sensor

9. Circuit board 2

10. Electro-hydraulic control module

Mechatronic connectors and sensor module





Mechatronic connectors:

1. Transmission control module to circuit board 1

2. Transmission control module to circuit board 2

3. Circuit board 2

4. Sensor module to wire set

5. Drive position sensor (G676)

6. Circuit board 3 in the sensor module

7. Transmission Input Speed (RPM) Sensor 1 (G632)

8. Transmission Input Speed (RPM) Sensor 2 (G612)

9. Wire set with wiring channel

10. Transmission control module to vehicle wiring harness

11. Transmission control module to sensor module

12. Transmission Control Module (TCM)

Transmission Range (TR) Display (Y6)





• Location: The Transmission Range Display (Y6) is integrated in the instrument cluster.

• The instrument cluster must be replaced if the transmission range display is faulty.

Selector Lever Sensor System Control Module (J587)





• Location: The Selector Lever Sensor System Control Module (J587) - 2 - is clipped to the selector mechanism function unit - arrows -.

• Disregard the - A arrow -.

Refer to => [ Selector Lever Sensor System Control Module ].

Shift Lock Solenoid (N110)





• Location: Shift Lock Solenoid (N110) - 1 - is clipped onto shift mechanism.

Refer to => [ Shift Lock Solenoid ].

Transmission Park Selector Switch (F305)





• Location: The Transmission Park Selector Switch (F305) consisting of two reed contacts - 1 - and - 2 - is installed on the circuit board - B - on the Shift Lock Solenoid (N110) - A -.

• The Transmission Park Selector Switch (F305) can only be replaced together with the Shift Lock Solenoid (N110).

Refer to => [ Shift Lock Solenoid ].

Kick Down Switch (F8)





A specific value from the Throttle Position (TP) Sensor (G79) and the Accelerator Pedal Position Sensor 2 (G185) are stored in the engine control module.

• Location: The accelerator pedal position sensors are integrated inside the accelerator pedal module - arrow -.

• If the accelerator pedal sensor is faulty, then replace the accelerator pedal module.

Selector Lever Transmission Range (TR) Position Display (Y26)





• Location: Selector Lever Transmission Range (TR) Position Display (Y26) - 1 - is clipped into center console.

Refer to => [ Selector Lever Transmission Range Position Display ].