Engine (B5244S4; 2004-2010): Overview

Fig 1: Identifying Engine (B5254)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Engine B5254 is a 5 cylinder 20 valve turbocharged engine with a cylinder capacity of 2.5 dm³ . Engine B5244 is a 5 cylinder 20 valve naturally aspirated engine with a cylinder capacity of 2.4 dm³ .

Visually there is no different between the engines. The difference is in specific components which affect the turbocharger (TC) and natural aspiration. There are different transmission combinations for the engine. The 5 and 6 speed manual transmission are called M56 and M66. The automatic transmissions are AW55-51 and AW50AWD.

The engine and transmission are pendulum mounted. A mounting on the engine is linked via a rubber bushing to the side member and an engine mounting on the transmission.