| 14 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 | 1995-2000 | 2000-2003 | 1995-2000 | 2000-2003 | 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] | 1410/1445 | 1495/1530 | 1420/1455 | 1500/1535 | 1440/1475 |
| Body dimensions [mm] | 4775/1800/1435 | 4775/1800/1435 | 4775/1800/1435 | 4775/1800/1435 | 4775/1800/1435 |
| Luggage capacity [l] | 460 | 460 | 460 | 460 | 460 |
| Acceleration 0-100km/h (0-62mph) [s] | 10,2/11,2 | 9,1/10,2 | 8,5/9,6 | 8,1/8,9 | 7,5/8,8 |
| Top speed [km/h] | 220/210 | 226/220 | 228/226 | 238/232 | 236/234 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 14,8/7,5/10,2 | 12,8/7,5/9,5 | 15,3/7,8/10,6 | 14,4/7,9/10,3 | 15,6/7,9/10,7 |
| Fuel tank capacity [l] | 70 | 70 | 70 | 70 | 70 |
| Ratio kg/PS | 9.4/9.63 | 8.79/9 | 8.35/8.56 | 7.81/7.99 | 7.46/7.64 |