Most early units featured narrow 2+2 seating on the upper deck to maximize capacity.
It is powered by a transversely mounted Volvo D10A-285 engine , producing 285 hp and 1220 Nm of torque.
The 3ASV fleet primarily used Walter Alexander ALX500 bodywork , though some later units received Australian Volgren CR223LD bodies. Operational Status
The 1998 production batch brought significant mechanical shifts to accommodate low-floor urban transit:
Introduced in 1998, the was a low-floor, three-axle double-deck bus chassis that replaced the high-floor Volvo Olympian . The 3ASV designation refers specifically to the 12-meter models operated by Kowloon Motor Bus (KMB) in Hong Kong, which was the first company to take delivery of this model. Performance and Specifications
Despite power increases over its predecessor, it is noted for struggling on steep inclines and having limited steering ability, requiring mechanical adjustments for hilly routes in Hong Kong. Interior and Design
The original 3ASV units were notable for their , which were replaced by electronic signs in subsequent production years. Most of the 1998/1999 fleet in Hong Kong reached the end of its service life and was fully retired by late 2020 . 6-meter short-wheelbase version of this bus?
It introduced electronically controlled air suspension and a full low-floor layout, though the radiator was moved behind the front axle to achieve this.
