BMC Procity

The Procity is BMC’s low-floor city bus. BMC’s overview page offers the Procity family “with Diesel, CNG and EV options in 10.7 m, 12 m and 18 m sizes”, and its technical page gives each version a tab of its own. This page covers the five diesel and CNG tabs: the 10.7 m diesel, the 12 m diesel, the 12 m CNG, the 18 m diesel and the 18 m CNG. The electric 12 m and 18 m buses, which BMC names PROCITY+, are covered on the BMC Procity+ Electric page. This page is built from BMC’s English Procity technical specifications and overview pages, both undated and read on 27 October 2026, and BMC news items of 2 and 9 October 2025.

Range and exhibitions

The overview page lists six models: 10.7 Meter Diesel, 12 Meter Diesel, 12 Meter CNG, 18 Meter Diesel, 18 Meter CNG and 12 Meter EV. On 2 October 2025 BMC announced that it would exhibit at Busworld Europe 2025 in Brussels from 4 to 9 October 2025, in Hall 3, Booth 306, and named the PROCITY 12M Diesel among the models it would show, beside the NEOCITY 8.5M EV, the PROCITY+ 12M EV and the PROCITY+ 18M EV. Its news item of 9 October 2025 reports that BMC took part in the exhibition. No BMC document opened gives a start of production for the Procity or presents an earlier generation of it. The drives a city bus can have, and the EU rules around them, are set out in city bus propulsion.

Engines

BMC’s technical page names a Cummins engine on every tab: a 6.7-litre six-cylinder diesel on the 10.7 m and 12 m diesel buses, and an 8.9-litre six-cylinder engine on the 18 m diesel and on both CNG buses. Every engine is described as turbocharged with an intercooler.

The two 6.7-litre engines carry different designations and ratings: “Cummins B6.7 E6” on the 10.7 m tab and “Cummins / B6,7 E6E” on the 12 m tab, which gives no horsepower figure. The two CNG tabs give the gas engine the same ratings and write it “Cummins L9NE6E” on the 12 m tab and “Cummins L9N E6E” on the 18 m tab. The 6.7-litre engine family is covered on the Cummins B6.7 engine page.

BMC’s overview page describes the engines under the heading “Environment Friendly Engine” and refers to the Euro 6 norm. Its engine panel names a gas engine with a different designation from the technical page’s: “Cummins ISL G 320 E6 OBD C”, turbocharged with an intercooler, at “239 KW (320 HP) @ 2000 rpm” and “1356 NM @ 1300 rpm”, with a six-forward, one-reverse automatic gearbox. The same page’s model cards give the 10.7 m diesel a torque of “832 Nm @ 1400 d/dk” and the 12 m, whose card gives a CNG engine type, “1082 Nm @ 1400 rpm”; the technical page gives 1,082 Nm for the 10.7 m diesel and 1,357 Nm for the 12 m CNG. Neither page reconciles the figures.

Transmission

Every diesel and CNG tab gives a ZF automatic gearbox with six forward gears and one reverse. The 10.7 m tab names it “ZF Ecolife 2 Auto”, the 12 m CNG tab “ZF 6AP 1400B Ecolife”, the 18 m CNG tab “ZF 6AP 1420B Ecolife 2” and the 18 m diesel tab “ZF 6AP 1720B Ecolife 2”; the 12 m diesel tab gives “ZF, Automatic” without a type. Each tab lists a hydraulic retarder as the auxiliary brake, described with the brakes below.

Axles, suspension, steering and brakes

Every tab gives a ZF front axle with a load capacity of 8,200 kg and a ZF rear axle of 13,000 kg; the two 18 m tabs add a ZF portal middle axle of 11,500 kg. The rear axle is a portal axle on every tab except the 18 m diesel, whose rear axle row reads “ZF” only. The front axle is independent on the 10.7 m and both 18 m tabs; on the 12 m diesel and 12 m CNG tabs a rigid ZF front axle is standard and an independent one optional. These are per-axle load capacities as BMC prints them.

The suspension is air bellows with hydraulic shock absorbers: two of each on the front axle and four of each on the rear axle; on the 18 m tabs the row for the middle and rear axles reads “Air Bellows (4), Hydraulic Absorbers (4)”. Every tab lists side kneeling (ECAS). The 10.7 m, 12 m CNG and both 18 m tabs also list ECAS (electronically controlled air suspension) among the standard equipment; the 12 m diesel tab lists right-side kneeling (ECAS) instead, and an anti-roll bar on the rear axle, which no other diesel or CNG tab lists. How ECAS holds a bus at a set ride height is set out in ECAS air suspension explained. Steering is hydraulic on every tab.

Every tab gives disc brakes. The 10.7 m, 12 m CNG and both 18 m tabs give air-controlled discs at the front and rear with EBS/ASR; the 12 m diesel tab lists air-operated disc brakes, an air-operated parking brake and EBS/ABS, with a hill holder among its standard equipment. The auxiliary brake is a hydraulic retarder (Intarder), activated via a hand lever and the brake pedal; the 10.7 m and 18 m diesel tabs write “and/or”. Electronic stability control (ESC) is an option on the 10.7 m, 12 m diesel and 12 m CNG tabs; the 18 m tabs do not list it. How a retarder works is set out in retarders and engine braking explained.

Every tab gives 275/70 R22.5 tyres on 8.25 x 22.5 rims. The 18 m tabs give ten tyres, and the 18 m diesel tab describes them as tubeless.

Dimensions and weights

The 18 m diesel tab prints its wheelbase as one row reading “5850-6010” and labels its height “Overall Height”; the 18 m CNG tab prints two wheelbase rows, 5,850 and 6,010, and does not say which axle pair each belongs to. The 12 m diesel tab has no gross vehicle weight row. No tab gives a turning circle, a kerb weight or a top speed.

Tanks and electrics

The diesel tabs give a fuel tank of 328 litres, written “328 L (164 L x 2)” on the 12 m tab, and an AdBlue tank of 40 litres. The 12 m CNG tab gives CNG tank capacities of 1,352 litres as standard and 1,575 litres as an option, and the 18 m CNG tab gives “1575 L (5x315 L)”. Both CNG tabs give the filling nozzle as “Right Side, NGV 2”, and list a filling nozzle on both sides and an automatic CNG tank drain valve as options.

The electrical system is 24 V on every tab, with two 12 V batteries of 240 Ah. The alternator rows read “24 V / 2 x 120 Ah” on the 10.7 m tab and “24V / 2 x 120 Ah” on the 12 m diesel tab, “24 V / 2 x 150 Ah” on the 12 m CNG tab, “14 V / 2 x 150 Ah” on the 18 m CNG tab and “24 V / 2 x 180 Ah” on the 18 m diesel tab.

Body, capacity, doors and access

Every tab lists a monocoque body with a low floor: “Monocoque Chassis and Body (Low-Floor)” on four tabs and “Monocoque Body / Fully Low Floor” on the 12 m diesel tab. The entrance height is 340 mm, the inner height 2,370 mm and the inner width 2,410 mm on every tab.

On the 18 m CNG tab the printed totals, 166 and 160, are each two more than the sums of the figures in their rows, 164 and 158.

BMC’s overview page gives other capacities. Its figures read 22 seated and 72 standing for the 10.7 m, 26 seated and 77 standing for the 12 m and 38 seated and 115 standing for the 18 m, and its text gives the 12 m a capacity of 103 passengers and the 18 m 165. Its model cards give further rows: 26 seated + 68 standing (22 fixed + 4 folding) and 22 seated + 64 standing + 1 “EY” for the 10.7 m; 21 sitting + 51 standing, 24 sitting + 43 standing (21 fixed + 4 folding) and 21 sitting + 43 standing + 1 “EY” for the 12 m, whose card gives a CNG engine type; and 38 sitting + 117 standing and 38 sitting + 113 standing + 2 “EY” + 1 stroller for the 18 m.

No tab gives a standard door count. The 10.7 m tab lists an “Optional Door Configuration (2-2-0)”. The 12 m diesel tab lists a front door with a heated front wing as standard and, as options, electric-operated inward-opening doors, electric-operated outward-opening doors except the front door, a double glass door, and a driver’s door with a cash box or with a magnetic lock.

Every tab lists a manual disabled ramp as standard. The 12 m diesel tab adds a wheelchair safety belt, ABS-covered wheelchair and disabled backrests and passenger landing lights (step lighting) as standard, and an electric-operated disabled ramp and an ironing-board-type wheelchair backrest as options. The accessibility requirements for city buses are set out in bus accessibility.

The 10.7 m tab lists a “VDV 234 Compatible Driver’s Cabin”, the 12 m tabs and the 18 m CNG tab an isolated driver’s cabin with VDV compatibility, and the 18 m diesel tab a “DV 234 Compatible Driver’s Cabin”. Each tab lists an adjustable steering wheel integrated with the instrument cluster or dashboard. The 12 m diesel tab lists plastic passenger seats with a fabric cover and a driver’s seat with a 3-point safety belt as standard, and other seat finishes, a heated driver’s seat and a driver’s cabin with a separated driver’s path as options.

Safety and driver-assistance systems

The 12 m diesel tab lists as standard a “GSR Package”, blind spot detection, pedestrian and cyclist collision warning, reversing detection and information systems (rear parking sensor), an intelligent speed assistance system, infrastructure for an alcohol detection and engine locking system, driver fatigue detection, a tyre pressure monitoring system (TPMS), an emergency brake signal and cyber security. The 10.7 m, 12 m CNG and both 18 m tabs list “GSR II Compatibility” and a park sensor among the options. Tyre monitoring is standard on every tab: TPMS on the 12 m tabs and the 18 m CNG tab, and a tyre temperature and pressure monitoring system (TTPMS) on the 10.7 m and 18 m diesel tabs. Which driver assistance systems the EU makes mandatory, and from when, is set out in mandatory driver assistance systems.

An automatic fire detection and extinguishing system is standard on the 10.7 m, 12 m CNG and both 18 m tabs; the 12 m diesel tab lists an engine room fire detection and extinguishing system as standard. The 12 m diesel tab also lists emergency exit hammers without roller as standard, and as options a camera monitoring and recording system, a mirror camera system, Class V mirrors, a rear view camera with recorder, a driver and passenger panic button, emergency exit hammers with roller and a tachograph. The other tabs list a camera surveillance and recording system among the options.

Equipment and options

Standard equipment on the 10.7 m, 12 m CNG and both 18 m tabs includes an air conditioner with a cooling function, a defroster with a heating function, electrically controlled heated side mirrors, LED interior lighting, LED destination boards, sliding side windows, a USB charger in the driver’s cabin, a digital clock and a hydrostatic fan cooling system; the 10.7 m and 18 m tabs add fog lights, a sunvisor and a roof hatch, two on the 10.7 m and 18 m diesel and one on the 18 m CNG. Their options include an air conditioner with cooling and heating, a preheater, a heated windscreen, turbo air ventilation, automatic axle greasing, an electrically controlled roof hatch, an LCD monitor, an announcement system, a microphone, LED destination panels, a passenger counting system, GPS and Wi-Fi, and coach-type side mirrors.

The 12 m diesel tab lists its own standard set: an air conditioner, convector heaters, a defroster with a heating function, electric heated tube-type side mirrors, LED destination boards at the front, rear and right, front fog lights, front and driver-side roller blinds, above-door exterior lighting, a manually operated roof hatch, a laminate separation panel and chassis bottom covers. Its options include an independent driver air conditioner, a diesel pre-heater, a refrigerator, a radio and MP3 player, wireless internet, a USB charger for passengers, validator preparation or application at the front or the doors, automatic cornering lighting, LED low beams, front axle automatic lubrication, lockable side windows, inward-opening hinged side windows and a fuel filler neck on both sides.

Under the heading “Meet The PROCITY 12M CNG!” the overview page lists a kneeling system, satin handle pipes, LED interior lighting, a rigid axle, an LED line sign, heated electric side mirrors and a kerb mirror, a tilt-telescopic adjustable steering wheel, LED daytime running lights, a 41 kW air conditioner, optional sliding glass, a “22.5 » Portal Axle” and a “5 Piece Buffer”. Further down it names a spacious interior, USB ports, a passenger information screen and an isolated driver cabin.

Source notes

The grid above is the 12 m diesel Procity as BMC’s English technical page gives it: a Cummins B6,7 E6E diesel of 6.7 litres and six cylinders at 209 kW and 2,100 rpm with 1,100 Nm at 1,000 rpm, a ZF automatic gearbox with six forward gears and one reverse, a length of 12,090 mm on a 5,850 mm wheelbase, a maximum height of 3,100 mm, and 27 seated plus 76 standing passengers; that tab gives no gross vehicle weight. The engine cards also cover the other diesel and CNG tabs of the same page. The 10.7 m diesel is 10,710 mm long on a 4,470 mm wheelbase, with a Cummins B6.7 E6 at 204 kW (280 hp) and 1,082 Nm and a gross vehicle weight of 18,000 kg. The 12 m CNG has a Cummins L9NE6E gas engine of 8.9 litres at 235 kW (320 hp) and 1,357 Nm, CNG tanks of 1,352 litres standard or 1,575 litres optional, a maximum height of 3,380 mm and a gross vehicle weight of 18,000 kg. The 18 m buses are 18,100 mm long on wheelbases of 5,850 and 6,010 mm, with a gross vehicle weight of 28,000 kg: the diesel has a Cummins L9 E6 of 8.9 litres at 269 kW (370 hp) and 1,584 Nm, the CNG a Cummins L9N E6E at 235 kW (320 hp) with 1,575 litres of CNG in five 315-litre tanks. Every tab lists a ZF front axle of 8,200 kg and a ZF rear axle of 13,000 kg, and the 18 m tabs a middle axle of 11,500 kg. BMC’s overview page gives other figures for some of the same buses: a Cummins ISL G 320 E6 OBD C gas engine at 239 kW (320 HP) and 1,356 Nm, 832 Nm for the 10.7 m diesel, and capacities of 103 passengers for the 12 m and 165 for the 18 m. No document opened gives a production start, a turning circle, a kerb weight or a top speed.