|Engine(s)||1.6 L (1596 cc/97 in³)|
1.8 L (1796 cc/109 in³)
1.9 L (1895 cc/115 in³)
The engine was built solely on Assembly Line 2 at Steyr, and was the successor to the M40.
It features ICIM (Individual Control Intake Manifold) and 2-valve technology. The ICIM optimizes the torque curve and is also aided by anti-knock control. Like the 16-valve, 4-cylinder M42 engine and the 6 and 8-cylinder engines, stationary high-voltage distribution is also used on the M43. The M40's timing belt was replaced by a chain as the high engine bay temperatures reduced the lifespan of the belt. Engine ratings were slightly raised while exhaust levels and fuel efficiency were significantly improved.
A further technical revision occurred in 1998. The displacement capacity was increased to 1.9 litres, resulting in improved torque of 180 Nm at 3900 rpm. The intake manifold was also constructed of plastic for added weight savings.
From 1993 to 2001 a total of 1,204,734 units came off the production line, making this the Steyr plant's highest-production engine.
|M43B16||1.6 L (1596 cc/97 in³)||75 kW (101 hp) @ 5500||150 N·m (111 ft·lbf) @ 3900||6200||1991|
|M43B18||1.8 L (1796 cc/109 in³)||85 kW (114 hp) @ 5500||168 N·m (124 ft·lbf) @ 3900||6200||1993|
|M43TUB19||1.9 L (1895 cc/115 in³)||87 kW (117 hp) @ 5500||180 N·m (133 ft·lbf) @ 3900||6200||1998|
|77 kW (103 hp) @ 5300||165 N·m (122 ft·lbf) @ 2500||6200||1999|
It's also known as M43 TÜ engine. It had twin-balancing shafts.