[citation needed] The X'Trapolis 100s and the HCMT are currently the only suburban trains in Melbourne with external destination displays on the sides of the carriages with this feature also seen on the diesel powered Sprinter and VLocity rail motors.

X'Trapolis 100 863M-1632T-864M-897M-1649T-898M was the first Melbourne train to receive the new ‘Metro’ livery in November 2009, in preparation for the launch of the new suburban operator.

[6] When the Connex livery was retired in place of the current Metro design, the Iramoo name (shown on units 851M and 852M) was erroneously written as Imaroo.

Additional handrails and emergency assistance intercoms were also installed in accordance to the same interior design of the motor cars since the sixth batch.

The circuit will be de-energised by a number of events, such as the driver releasing a vigilance control, applying an emergency brake or passing a signal at stop.

Coincidentally, on 3 January 2013, a Hitachi train derailed in the same location on the city-bound line due to rails buckling in hot weather.

Prior to the accident, the platform had recently been washed and the soapy water had ended up on the tracks causing a complete loss of friction.

The subsequent investigation found that a wiring error during a modification to the train's low-note whistle on 959M, combined with a deterioration of insulation resistance in the uncouple solenoid connector of 882M (the leading carriage of the trailing unit), resulted in an error circuit forming which resulted in the unintended coupling.

[12] On 12 August 2021, X'Trapolis set 871M-1636T-872M collided with a semi-trailer truck at the High Street Road level crossing near Glen Iris station before 8am, causing damage to the train only.

[20] The first of 19 trains that were built by Alstom in Italy were loaded onto a ship in July 2009,[21] with the first set arriving at Newport Workshops on 24 August 2009.

[22][23] The remaining 19 trains were assembled at United Group's Ballarat plant, under a state government requirement for a minimum of 40% local content.

[25] By late September the new units, numbered 1M-1301T-2M and 3M-1302T-4M, were moved into the open at the Newport Workshops and had been taken out on test runs without any livery applied.

By October the train had received carriage numbers and names, with compatibility testing being carried out with a modified member of the existing fleet.

[26] The second train to be imported was taken to Ballarat immediately after arrival due to floor damage, with Alstom and United Group Rail spending two months making repairs.

All external side of carriage screens and windscreen destination displays were replaced with a larger, bolder font.

The purchase of the rolling stock was completed in November 2002, with the signing of a contract between Merval and the French company Alstom, which in addition to guaranteeing the delivery of 27 convoys of 2 cars, included signaling, control systems and electrical power, as well of various items that ensured maintenance for 30 years.

On 30 June 2005, a farewell ceremony was held for the old Suburban Electric Motor Vehicles (AES), built in Argentina by Fiat Concord, which provided commercial service until July 2005.

Due to the lack of a catenary, the trains do not operate beyond the Limache station, although the possibility of extending Merval's service to La Calera is being analysed.

[40] Contrary to what was done in Melbourne, Merval announced a reduction in seat capacity of its trains, to be implemented between October and December 2014.

Although exact figures were not provided, a reduction of approximately 46 seats per train is expected, to be homologated to the 96 that the X'Trapolis Modular has, a model of which 8 units will arrive in 2015 to reinforce Merval's service.