Service Repair Manual | |
| Year | 1995-1998 |
| Engine code | M52B25 |
| Engine size | 2494ccm |
| Power | 125kw |
| Idle speed | 700-800rpm |
| Compression | 10.0-11.0bar |
| Fuel system | Siemens MS 41.0 |
| Firing order | 1-5-3-6-2-4 |
| Spark plug | Bosch F7LDCR NGK BKR6EK Denso K20TXR |
| Electrode gap | 0.9mm |
| CO | 0.5% |
| CO2 | 14.5-16.0% |
| HC | 100ppm |
| O2 | 0.1-0.5% |
| CO content at increased idle speed | 0.3% |
| Increased idle speed for CO test | 2500-3000rpm |
| Lambda | 0.97-1.03 |
| Radiator cap | 1.8-2.1bar |
| Thermostat opens | 92℃ |
| Ventilator turn on | 90℃ |
| Battery | 65Ah |
| Alternator | 80A |
| Cylinder head tightening sequence | |
 | |
| Cylinder head tightening torque 1 | 40Nm |
| Cylinder head tightening torque 2 | 90° |
| Cylinder head tightening torque 3 | 90° |
| Spark plug Tightening torque | 30Nm |
| Engine oil with filter | 6.5l |
| Cooling system | 10.5l |
| Gearbox oil | 1.0l |
| Automatic transmission fluid | Fluid = 3.3l / Dry refill = 87.8l |
| Differential | 1.0l |
| Engine oil grade | API SH / SJ SAE 5W-30 |
| API SH / SJ SAE 15W-40 | |
| Gearbox oil grade | Orange label = ATF Dexron II D |
| Green label = Synthetic Mobil SCH630(BM) part No. 81-22-9-407-305 | |
| Yellow label = MTF-LT-1 / MTF-LT-2 No label = API GL-4 SAE 80 | |
| Automatic transmission fluid type | ESSO LT 71141 |
| Differential oil | BMW SAF-XO BMW SAF-XLS |
| Brake fluid | DOT4 |
 | |
| Tire dimension (x/y R z) | 205/65 R15 |
| 225/60 R15 | |
| Front wheel presure | 2.0bar |
| Rear wheel presure | 2.3bar |
| Wheel bolt tightening torque (B) | 90-110Nm |
| Front hub tightening torque (H) | 290Nm |
| Rear hub tightening torque (H) | M22 = 200Nm M24 = 250Nm M27 = 300Nm |
 | |
| Minimal front brake disk thickness (R) | 20.4mm |
| Minimal rear brake disk thickness (R) | 8.4 / 17.4mm |
| Minimal front pad thickness (P) | 3.0mm |
| Minimal rear pad thickness (P) | 3.0mm |
BMW E39 523i (2494ccm) 1995-1998
Manufacturer | |
| BMW | |
Model | |
| E39 | |
Type | |
| 523i | |
Year | |
| 1995-1998 | |
Engine code | |
| M52B25 | |
Engine size | |
| 2494ccm | |
Power | |
| 125kw | |
