125001284 - 2127C30 HYDRAULIC SPEED SELECTION SYSTEM PUMP - R R (Smart gearbox)

Removing ( Refitting )

  • Position the vehicle on a lift.
  • Connect the Examiner diagnostic equipment.
  • Select "Alfa Selespeed" on the Examiner.
  • Select "Control unit test" on the Examiner and select "Marelli Selespeed automatic transmission" as the system.
  • Press "Active diagnosis" on the Examiner and select "Accumulator depressurization".
  • Follow the procedure indicated on the Examiner.
  • Make sure that the ignition key is in the OFF position, then disconnect the battery terminal (-).
DescriptionConnector
-Battery See A001 Battery

  • Remove the gear selection electro-hydraulic system hydraulic circuit fluid reservoir plug.

  • Drain the gear selection electro-hydraulic system hydraulic circuit fluid reservoir.

1. Release the electrical connection for the gearbox electro-hydraulic selection system pump from the mounting and disconnect it.
DescriptionConnector
1Automatic transmission fluid pump See N48 AUTOMATIC TRANSMISSION PUMP
2. disconnect the electrical connections (2a) and (2b) from the engine management control unit.
DescriptionConnector
2aEngine management control unit See M10 ENGINE MANAGEMENT ECU
DescriptionConnector
2bEngine management control unit See M10 ENGINE MANAGEMENT ECU

  • Loosen the band and disconnect the cold air intke from the air filter.

  • Undo the connector (1a) and disconnect the pipe from the hydraulic circuit fluid reservoir to the gearbox electro-hydraulic selection pump (1b), pump side.
  • Undo the connector (2a) and disconnect the pipe from the pump to the gearbox electro-hydraulic selection actuator hydraulic unit (2b), pump side.

  • Loosen the band and disconnect the pipe from the electro-hydraulic selection activation hydraulic unit to the fluid reservoir, reservoir side.

  • Undo the front bolts fixing the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump.

  • Undo the rear bolts fixing the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump.
  • Undo the nuts (2a) and remove the bracket (2b).

  • Release the pipes from the bands on the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump.

  • Working via the wheel arch, remove the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump (1a) complete with engine management control unit (1b).

  • At the bench, undo the nuts (1a) and remove the gearbox electro-hydraulic selection system pump (1b) from the mounting.
Refitting ( Removing )

  • Place the gearbox electro-hydraulic selection system pump on the mounting and secure it using the nuts.
  • Place the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump, complete with engine management control unit, in its housing.
  • Fasten the pipes to the bands on the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump.
  • Refit the bracket and secure with the bolt.
  • Tighten the rear bolts fixing the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump.
  • Tighten the front bolts fixing the mounting for the hydraulic circuit fluid reservoir and the gearbox electro-hydraulic selection system pump.
  • Connect the pipe from the electro-hydraulic selection activation hydraulic unit to the fluid reservoir, reservoir side and tighten the band.
1. Connect the pipe from the electro-hydraulic selection gearbox hydraulic actuation unit (1a), pump side and tighten the connector to the recommended torque.
FasteningComponentØ  Value (daNm)
1bConnectorPIPE FROM PUMP/ACTUATOR UNITM12(Pump side) 1.2 - 1.5, daNm
2. Connect the pipe from the hydraulic circuit fluid reservoir to the gearbox electro-hydraulic selection pump (2a), pump side and tighten the connector (2b) to the recommended torque.
FasteningComponentØ  Value (daNm)
2bConnectorPIPE FROM RESERVOIR TO PUMPM14(Pump side) 0.8 - 1.3, daNm