| 12 version of the engine | 123 | | Typ | 520i | 520i | 523i | 525i | 528i |
| Engine | benzynowy | benzynowy | benzynowy | benzynowy | benzynowy |
| Type of injection | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI |
| Engine Code | M52B20TU | M54B22 | M52B25TU | M54B25 | M52B28TU |
| Years of mounting | 1996-2000 | 2000-2004 | 1996-2000 | 2000-2004 | 1995-2000 |
| Cylinders/valves | R6/24 | R6/24 | R6/24 | R6/24 | R6/24 |
| Displacement [cm³] | 1990 | 2171 | 2494 | 2494 | 2793 |
| Power [kW/PS/RPM] | 110/150/5900 | 125/170/6250 | 125/170/5500 | 141/192/6000 | 142/193/5300 |
| Torque [Nm/RPM] | 190/4200 | 210/3500 | 245/3950 | 245/3500 | 280/3950 |
| Timing gear | łańcuch | łańcuch | łańcuch | łańcuch | łańcuch |
| Particle filter | - | - | - | - | - |
| Gearbox | manual. 5b/aut. 5b | manual. 5b/aut. 5b | manual. 5b/aut. 5b | manual. 5b/aut. 5b | manual. 5b/aut. 5b |
| Drivetrain | tylny | tylny | tylny | tylny | tylny |
| Brakes, front/rear | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. |
| Front suspension | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona |
| Rear suspension | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe |
| Curb weight [kg] | 1505/1540 | 1595/1630 | 1515/1550 | 1605/1640 | 1550/1585 |
| Body dimensions [mm] | 4805/1800/1445 | 4805/1800/1445 | 4805/1800/1445 | 4805/1800/1445 | 4805/1800/1445 |
| Luggage capacity [l] | 410/1525 | 410/1525 | 410/1525 | 410/1525 | 410/1525 |
| Acceleration 0-100km/h (0-62mph) [s] | 10,6/11,9 | 9,5/10,5 | 8,9/10,0 | 8,5/9,3 | 7,9/9,1 |
| Top speed [km/h] | 212/209 | 223/217 | 222/220 | 235/229 | 229/227 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 15,4/7,8/10,6 | 13,7/7,9/10,1 | 16,0/8,2/11,1 | 14,7/8,0/10,5 | 16,6/7,8/11,0 |
| Fuel tank capacity [l] | 70 | 70 | 70 | 70 | 70 |
| Ratio kg/PS | 10.03/10.27 | 9.38/9.59 | 8.91/9.12 | 8.36/8.54 | 8.03/8.21 |