| 21 version of the engine | 12345 | | Typ | 316 | 316i | 316i | 318i | 318i |
| Engine | benzynowy | benzynowy | benzynowy | benzynowy | benzynowy |
| Type of injection | gaźnik | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI |
| Engine Code | M10B18 | M40B16 | M10B18 | M10B18 | M10B18 |
| Years of mounting | 1982-1987 | 1987-1991 | 1988-1991 | 1984-1988 | 1982-1987 |
| Cylinders/valves | R4/8 | R4/8 | R4/8 | R4/8 | R4/8 |
| Displacement [cm³] | 1766 | 1596 | 1766 | 1766 | 1766 |
| Power [kW/PS/RPM] | 66/90/5500 | 74/100/5500 | 75/102/5800 | 75/102/5800 | 77/105/5800 |
| Torque [Nm/RPM] | 140/4000 | 143/4250 | 140/4500 | 140/4500 | 145/4500 |
| Timing gear | łańcuch | pasek | łańcuch | łańcuch | łańcuch |
| Particle filter | - | - | - | - | - |
| Gearbox | man. 4,5b/aut. 3b | manual. 5b/aut. 4b | manual. 5b/aut. 4b | manual. 5b/aut. 4b | man. 4,5b/aut. 3b |
| Drivetrain | tylny | tylny | tylny | tylny | tylny |
| Brakes, front/rear | tarczowe/bębnowe | tarczowe/bębnowe | tarczowe/bębnowe | tarczowe/bębnowe | tarczowe/bębnowe |
| Front suspension | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona |
| Rear suspension | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe |
| Curb weight [kg] | 990/1010 | 1065/1085 | 1010/1030 | 1020/1040 | 1000/1020 |
| Body dimensions [mm] | 4325/1645/1380 | 4325/1645/1380 | 4325/1645/1380 | 4325/1645/1380 | 4325/1645/1380 |
| Luggage capacity [l] | 425 | 425 | 425 | 425 | 425 |
| Acceleration 0-100km/h (0-62mph) [s] | 12,2/14,2 | 12,1/14,1 | 12,1/14,1 | 11,8/13,9 | 11,2/13,1 |
| Top speed [km/h] | 175/171 | 182/177 | 182/175 | 184/177 | 184/179 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 9,8/7,0/8,7 | 10,3/6,4/8,5 | 10,7/7,0/8,9 | 10,5/6,6/8,6 | 9,8/7,0/8,7 |
| Fuel tank capacity [l] | 55 | 55 | 55 | 55 | 55 |
| Ratio kg/PS | 11/11.22 | 10.65/10.85 | 9.9/10.1 | 10/10.2 | 9.52/9.71 |