BMW M43
Encyclopedia
The BMW
M43 is a straight-4
piston engine. Displacement ranges from 1600 cc to 2000 cc.
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.
M1.7.1 fuel injection
.
Applications:
M1.7.1 fuel injection
.
Applications:
BMS 46 fuel injection
.
It's also known as M43 TÜ engine. It had twin-balancing shafts.
Applications:
BMW
Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...
M43 is a straight-4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....
piston engine. Displacement ranges from 1600 cc to 2000 cc.
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.
| Engine | Displacement | Power | Torque | Redline | Year |
|---|---|---|---|---|---|
| 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 (118 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 |
M43B16
A 1.6 L (1596cc) M43B16 produces 75 kW (102 hp) and 150 N·m (111 ft·lbf) with BoschRobert Bosch GmbH
Robert Bosch GmbH is a multinational engineering and electronics company headquartered in Gerlingen, near Stuttgart, Germany. It is the world's largest supplier of automotive components...
M1.7.1 fuel injection
Fuel injection
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s....
.
Applications:
- 1993-1999 E36BMW E36The BMW E36 is the third generation of the 3 Series compact executive cars produced by BMW. It was introduced in late 1990 for Europe and in late 1991 for US and Canada. It was the successor to the E30 3 Series and was eventually replaced by the E90 3 Series in 2005, though E36 coupes were still...
316i - 1994-1998 E36BMW E36The BMW E36 is the third generation of the 3 Series compact executive cars produced by BMW. It was introduced in late 1990 for Europe and in late 1991 for US and Canada. It was the successor to the E30 3 Series and was eventually replaced by the E90 3 Series in 2005, though E36 coupes were still...
316i Compact
M43B18
The M43B18 was a 1.8 L (1796cc) version. It produced 85 kW (115 hp) and 168 N·m (124 ft·lbf) with BoschRobert Bosch GmbH
Robert Bosch GmbH is a multinational engineering and electronics company headquartered in Gerlingen, near Stuttgart, Germany. It is the world's largest supplier of automotive components...
M1.7.1 fuel injection
Fuel injection
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s....
.
Applications:
- 1992-1998 E36BMW E36The BMW E36 is the third generation of the 3 Series compact executive cars produced by BMW. It was introduced in late 1990 for Europe and in late 1991 for US and Canada. It was the successor to the E30 3 Series and was eventually replaced by the E90 3 Series in 2005, though E36 coupes were still...
318i - 1994-1996 E34BMW E34The BMW E34 is the version of the BMW 5 Series automobile built from February 1988 to 1995 with the Touring model ending June 1996. It replaced the BMW E28 in 1988 and was replaced by the E39 in 1996....
518i - 1995-2001 E36BMW E36The BMW E36 is the third generation of the 3 Series compact executive cars produced by BMW. It was introduced in late 1990 for Europe and in late 1991 for US and Canada. It was the successor to the E30 3 Series and was eventually replaced by the E90 3 Series in 2005, though E36 coupes were still...
Z3 1.8BMW Z3The BMW Z3 was the first modern mass-market roadster produced by BMW, as well as the first new BMW model assembled in the United States. The Z3 was introduced as a 1996 model year vehicle, shortly after being featured in the James Bond movie,...
M43B19
The 1.9 L (1895cc) M43B19 was the largest M43 engine. It produced 87 kW (118 hp) and 180 N·m (133 ft·lbf) or 77 kW (105 hp) and 165 N·m (122 ft·lbf). It used BMWBMW
Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...
BMS 46 fuel injection
Fuel injection
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s....
.
It's also known as M43 TÜ engine. It had twin-balancing shafts.
Applications:
- 87 kW (118 hp) and 180 N·m (133 ft·lbf)
- 1998-2001 E46BMW E46The BMW E46 is the fourth generation of the 3 Series compact executive cars produced by BMW, produced from 1998 when it succeeded the BMW E36 until it was replaced by the BMW E90 in 2005....
318i/318Ci - 2001-2003 BMW E36 Z3 1.9
- 1998-2001 E46
- 77 kW (105 hp) and 165 N·m (122 ft·lbf)
- 1999-2000 E36BMW E36The BMW E36 is the third generation of the 3 Series compact executive cars produced by BMW. It was introduced in late 1990 for Europe and in late 1991 for US and Canada. It was the successor to the E30 3 Series and was eventually replaced by the E90 3 Series in 2005, though E36 coupes were still...
316i compactBMW CompactThe BMW Compact is a compact car / small family car, basically a truncated liftback version of the BMW 3 Series, produced by the German automaker BMW between 1993 and 2004. From 1994, it was based on the BMW E36 platform, switching to the BMW E46 platform in 2001... - 1998-2001 E46BMW E46The BMW E46 is the fourth generation of the 3 Series compact executive cars produced by BMW, produced from 1998 when it succeeded the BMW E36 until it was replaced by the BMW E90 in 2005....
316i
- 1999-2000 E36