BMW automotive engine families listed as M43. Specifications below retain the source's separate family and variant labels.
Family specifications
BMW M43 engine
| Field | Reported value |
|---|---|
| Production | 1991–2002 |
| Configuration | Inline-4 |
| Displacement | 1.6 L (1,596 cc) 1.8 L (1,796 cc) 1.9 L (1,895 cc) |
| Cylinder bore | 84 mm (3.31 in) 85 mm (3.35 in) |
| Piston stroke | 72 mm (2.83 in) 81 mm (3.19 in) 83.5 mm (3.29 in) |
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminium |
| Valvetrain | SOHC , 8V |
| Fuel type | Petrol , CNG |
| Predecessor | BMW M40 |
| Successor | BMW N42 |
Variant specifications
Versions
| Version | Displacement | Power | Torque | Year | Note |
|---|---|---|---|---|---|
| M43B16 | 1,596 cc (97.4 cu in) | 75 kW (101 hp) at 5500 rpm | 150 N⋅m (111 lb⋅ft) at 3900 rpm | 1991-1999 | |
| M43B16 | 1,596 cc (97.4 cu in) | 60 kW (80 hp) at 5500 rpm | 127 N⋅m (94 lb⋅ft) at 3900 rpm | 1995-2000 | CNG |
| M43B18 | 1,796 cc (109.6 cu in) | 85 kW (114 hp) at 5500 rpm | 168 N⋅m (124 lb⋅ft) at 3900 rpm | 1993 | |
| M43B18 | 1,796 cc (109.6 cu in) | 74 kW (99 hp) at 5500 rpm | 142 N⋅m (105 lb⋅ft) at 3900 rpm | 1995-1996 | CNG |
| M43B19 | 1,895 cc (115.6 cu in) | 87 kW (117 hp) at 5500 rpm | 180 N⋅m (133 lb⋅ft) at 3900 rpm | 1998 | |
| M43B19 | 1,895 cc (115.6 cu in) | 77 kW (103 hp) at 5300 rpm | 165 N⋅m (122 lb⋅ft) at 2500 rpm | 1999 |
Recorded vehicle applications
M43B16
- 1994-1998 E36 316i
- 1995-2000 E36/5 316g Compact
- 1998-1999 E46 316i
- 1993-09/1995 Bosch Motronic 1.7.2
- 1995-09/1997 Bosch Motronic 1.7.3
- 1997-2000 BMS43
M43B18
- 1992-1998 E36 318i
- 1994-1996 E34 518i
- 1995-1996 E34 518g Touring
- 1995-2001 Z3 1.8
M43B19
Applications— 77 kW (103 hp) and 165 N⋅m (122 lb⋅ft):
- 1999-2001 E36 316i Compact
- 1999-2002 E46 316i
Applications— 87 kW (117 hp) and 180 N⋅m (133 lb⋅ft):
- 1998-2001 E46 318i/318Ci
- 1999 -2002 Z3 1.9
BMW automotive engine directory
Design, development and variant notes
The M43 changed from the M40's belt to a timing chain and used roller rockers, knock sensing and a variable-length DISA intake. Natural-gas-capable versions were offered in some models.
The 1.9-litre M43TU used a revised short block and intake. The source distinguishes lower-output M43B19 versions without DISA from the higher-output versions; engine-management versions also differ across variants.
Data adapted from the cited Wikipedia revision by Wikipedia contributors under CC BY-SA 4.0. Production dates and fitments reflect that revision; verify the exact engine code, market and vehicle before applying a specification.
Sources
Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.
- Wikipedia: List of BMW engines. Wikipedia contributors; CC BY-SA 4.0. Source revision oldid 1382309748; accessed 2026-11-10.
- Wikipedia: BMW M43. Wikipedia contributors; CC BY-SA 4.0. Source revision oldid 1372842047; accessed 2026-11-10.
Further Wikipedia-sourced details
The following additional information is drawn from the cited Wikipedia revision by Wikipedia contributors, available under CC BY-SA 4.0. An open-ended date reflects the source snapshot, not confirmed current production or fitment.
Additional technical and variant notes
For M43B19, the source distinguishes a 77 kW specification without DISA from an 87 kW specification with the variable-length intake. Verify the individual engine before assuming its intake or camshaft specification.