Pressure Accumulator – Fiat M20 Dualogic / Selespeed
The accumulator is responsible to store the pressure of the hydraulic system for later access by the actuators. The diaphragm type accumulator has two cells: one cell storing the hydraulic fluid and one cell containing a gas to create counterpressure. Both cells are separated by a membrane. These accumulators have a certain life span and a common defect is that the gas leaks out of the cell, which causes the system to be unable to build up hydraulic pressure. In many of such cases, the pump appears to prime permanently.
We offer a brand new original Magneti Marelli spare part.
Pump Motor – Fiat M20 Dualogic / Selespeed
The pump motor drives the gear pump, which generates the pressure for the Dualogic / Selespeed transmission. Both parts together form the hydraulic pump. Without hydraulic pressure, the transmission cannot perform any action – neither change gears, nor operate the clutch. Therefore, the hydraulic pump is the most important component in the system.
In most cases, it is sufficient to replace only the electric motor, as this is a wearing part. The gear pump fails only very rarely. Another advantage is that when only the pump motor is changed, the hydraulic system does not need to be bled afterwards, unless it has been opened.
We sell an original, brand new Magneti Marelli spare part – the same part you would get from Fiat.
Service Kit Hydraulic Pump – Fiat M20 Dualogic / Selespeed
The service kit includes the plastic coupling, which connects the shaft of the gear pump with the shaft of the electric motor, as well as seals.