SMB266K on Service 187 (SPAD-Registered)


The MAN NLxx3F is a series of low-floor single-decker city bus chassis for 10.5 to 12.0 metres length, offered by MAN since 1998, with internal code A22. They are based on the integral low-floor MAN NLxx3 Lion's City (A21). Available versions since launch include NL223F, NL233F, NL243F, NL263F, NL273F, NL283F, NL313F and NL323F. LPG and CNG versions are also available, with NL313F CNG being the most powerful.

The NL323F is essentially a low-floor single-decker city bus chassis, fitted with a 320hp engine.

SMRT Buses

SMRT made a total purchase of 734 of NL323Fs between 2010 and 2014, some of which are purchased under Bus Service Enhancement Programme Scheme (BSEP), funded by the Land Transport Authority (LTA).

Under the Bus Contracting Model, some of the BSEP buses have been leased by the LTA to other operators.


In 2010, SMRT received a NL323F demonstrator, bodied by Manufacturing Commercial Vehicles (MCV). It featured an onboard television unit by LG, as well as free Wi-Fi access.

In 2013, the demonstrator was returned to the dealer. In 2015, it was sold and exported to Australia after being re-bodied by Gemilang Coachwork to the Lion's City Hybrid design.

Production Batch

Batch 1

In 2011, SMRT placed an order for 200 NL323Fs with the same specifications as the demonstrator. Gemilang Coachwork supplied the bodywork for these buses, which featured the Lion's City Hybrid design that was licensed by MAN.

SMB189A originally featured an additional step leading to the last row of seats, which was later removed.

Batch 2

In 2012, SMRT placed an order for another 200 NL323Fs. An unannounced order of 2 additional units was also added. These buses were built to the same specifications as the batch 1 buses. The interior featured 2 additional grab poles at the front, and later batch 2 buses had 3 seats removed to provide a larger standing area.

Batch 3

In 2014, SMRT placed a final order for 332 NL323Fs. These buses were built to the same specifications as the batch 2 buses. The interior now features adjustable air-conditioning vents, and doors closing announcement for the front doors. Exterior wise, the engine cover was updated with a newer design. The later batch 3 buses had Voith gearbox fitted instead of ZF.

Specification Table

Demonstrator Production Batch 1 Production Batch 2 Production Batch 3
Registration no. SMB138Y SMB189A - SMB354P
SMB3001M - SMB3034T
SMB1301K - SMB1420A
SMB3035R - SMB3116R
SMB1421Y - SMB1650C
SMB3117M - SMB3169M
SG1700U - SG1748H
Vehicle bodywork MCV Evolution MAN Lion's City Hybrid
Vehicle bodywork assembler Soon Chow Gemilang Coachwork
Quantity 1 200 202 332
735 (Total)
Year 2009 2011 & 2012 2012 & 2013 2014 & 2015
Period of registration 17 Dec 2010 15 Sep 2011 - 30 Nov 2012 13 Sep 2012 - 1 Feb 2013 8 Jul 2014 - 5 Oct 2016
Passenger capacity Seating: 38 / 35
Standing: 52 / 56
Wheelchair bay: 1
Total: 90 / 91
Engine model MAN D 2066 LUH-32
Engine capacity 10518 cc
Emission standard Euro V
Transmission model ZF EcoLife 6 AP 2000 B
Voith DIWA 864.5 (SMB1568H, SMB1582R - SMB1650C, SMB3117M - SMB3169M, SG1700U - SG1748H)
Power/torque 320 hp (235 kW) @ 1900 rpm / 1600 Nm @ 1000 - 1400 rpm
Air-con model Denso LD8i Denso LD8u
EDS model Hanover Mobitec MobiLED
EDS controller model Hanover Eric+ Mobitec MobiMASTER ICU 400
Seat model Vogelsitze System 750/3
Door model Ventura Systems Masats



Batch 1

Batch 2

Batch 3

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