Summary of MAN A22 Batches

[SG1201T Citaro]

Background information: In the late 2000s, SMRT desperately needed a replacement for their rapidly-ageing MB O405 rigid buses which are environmentally friendly and wheel-chair accessible friendly. MAN responded with the MAN NL323F, commonly known as the A22, in the following batches:

DEMONSTRATOR(SMB138Y)

1. Introduced in Dec 2010, trialled for 1 year
2. Bodied with Egyptian MCV Evolution body, the only MAN A22 to have this body style
3. Hanover EDS
4. Denso LD8i Aircon
5. Doors by Ventura Systems
6. Onboard Wifi provided, LG Television unit installed
7. Assigned to WLDEP and entered service on 961
8. Later made appearances on 61, 106, 167, 851, 857, 858, 858A, 960, 963R, 966 and 971E.
9. Deregistered on Nov 2014 and re-bodied with a Gemilang bodywork before being sent to Perth

BATCH 1(SMB189A – SMB354P, SMB3001M-SMB3034T, total 200 buses)

1. Rebodied by Gemilang with Lion's City Hybrid design, all MAN NL323Fs use this body work
2. Registered between Sep 2011 and Feb 2013, they make up the first of the MAN A22 buses
3. 200 units delivered in total
4. Equipped with a MAN D2066 LUH-32 engine, Euro V compliant
5. Mobitec Mobi LED, connected to an ICU 400 controller
6. Masats doors
7. Comes with Lion's Head design that becomes the distinctive feature of this bus; made of fibreglass, the attachment weighs approximately 100kg

BATCH 2(SMB1341U, SMB1363G – SMB1420A, SMB3035R – SMB3116R, total 200 buses)

1. Registered between Jan 2013 to Mar 2014, these buses make up the second production batch of MAN NL323F buses
2. Largely similar to Batch 1 buses, with minor aesthetic changes
3. Comes with door movement markings
4. Capacity of 90 passengers(38 seating, 52 standing), later units installed with a modified seating arrangement which increases standing capacity, for a carrying capacity of 91 passengers(35 seating, 56 standing), applicable to buses with the following registration: SMB1341U, SMB1363G – SMB1420A, all BSEP Batch 2 buses

[SBS34D]

someone told me different batches of MAN euro 5 buses got different engine sound. I managed to spot some differences, but still unable to hear out which sound belong to which rego range.