M52B25 BMW M52B25
Рядний 6-циліндровий двигун BMW з атмосферним впорскуванням, відомий своєю надійністю та плавністю роботи.
86
Brand engines
2
Modifications
Technical Specifications
| Engine Displacement | 2.5 L (2,494 cc) |
| Configuration | Inline-6 |
| Number of Cylinders | 6 |
| Valves per Cylinder | 4 |
| Power | 170 - 192 л.с. |
| Torque | 245 - 250 Н*м |
| Cylinder Bore | 84.00 mm |
| Piston Stroke | 75.00 mm |
| Compression Ratio | 10.5:1 |
| Firing Order | 1-5-3-6-2-4 |
| Fuel System | Multi-point fuel injection |
| Aspiration | Naturally Aspirated |
| Intercooler | No |
| Maximum RPM | 6,500 rpm |
| Max Torque RPM | 3,500 rpm |
| Valve Train | DOHC |
| Timing Drive | Chain |
| Timing Chain Replacement | 250000 or as needed |
| Block Material | Aluminum |
| Head Material | Aluminum |
| Engine Weight | 170 kg |
| Dimensions (L×W×H) | null mm |
| Lubrication System | Wet sump |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | BMW M52 engine series |
| Manufacturing Plant | Munich, Germany |
| Predecessor | M50B25 |
| Successor | M54B25 |
Maintenance
| Engine Oil Capacity | 6.5 L (with filter: 6.75 L) |
| Recommended Viscosity | 5W-30, 5W-40 |
| Oil Standard | ACEA A3/B3, API SJ |
| Recommended Brands | Castrol Edge, Mobil 1, Shell Helix |
| Oil Change Interval | 15 000 km or 12 mo |
| Oil Filter | 11421745390 |
| Air Filter |
13721744869
Replace every 60 000 km |
| Fuel filter | 13321740985 |
| Cabin Filter | 64318391292 |
| Spark Plugs |
Type: Platinum Part number: 12120037607Gap: 0.8 mm Quantity: 6 pcs Replace every 60 000 km |
| Coolant Capacity | 10 L |
| Coolant Type | G11 (BMW Coolant) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 88°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 110°C |
| Critical Temperature | 120°C |
| Annual Maintenance Cost | 600-1000 USD |
Reliability
Expected lifespan: 300 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Cooling system failures | High | 100000-150000 km | $500-1000 |
| VANOS unit issues | Medium | 120000-180000 km | $300-700 |
Known defects
- Nikasil cylinder lining issues in early models
Tuning potential
Tuning potential: Medium | Max. safe power: 270 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 210 hp | 270 Nm |
ECU remap only Reliability impact: Minimal |
$400 |
| Stage 2 | 230 hp | 290 Nm |
ECU, Exhaust System Required: Performance exhaust, Cold air intake, ECU remap Reliability impact: Low |
$2000 |
| Stage 3 | 250 hp | 310 Nm |
- Required: Forced induction, Forged internals, Upgraded fuel system Reliability impact: Medium-High |
$8000 |
Popular modifications
- Cold air intake
- Performance exhaust
- ECU remap
Tuning limitations
- Stock internals limit power gains
- Cooling system needs upgrades for high power
Cars with the M52B25 engine
This engine was fitted to 1 model
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
BMW | 3 Series | 3 series (E36) | 1991 - 1998 |
All modifications (2)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| BMW 3 Series | 3 series (E36) | BMW 325i 2.5 л.с. 6-МКП 2WD | 192 hp | 6-МКП | 2WD |
| BMW 3 Series | 3 series (E36) | BMW 325i 2.5 л.с. 5-Автомат 2WD | 192 hp | 5-Автомат | 2WD |
Interesting Facts
- The M52B25 was one of the first BMW engines to use an aluminum block with Nikasil lining.
- It was known for its smoothness and high-revving nature.
Applications
Total produced: null
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| BMW 3 Series | E36 | 1995-1998 | 170hp | Europe, USA |
| BMW 5 Series | E39 | 1995-2000 | 170hp | Europe, USA |
Compatible transmissions: 5-speed Manual, 5-speed Automatic
Drive types: RWD
Fuel Economy
| Fuel Type | Petrol 95 |
| Octane Rating | Minimum: 91 | Recommended: 95 |
| Consumption (City) | 12 L/100km |
| Consumption (Highway) | 7.5 L/100km |
| Consumption (Combined) | 9.5 L/100km |
| Real Consumption | 10.5 L/100km |
| Fuel Tank Capacity | 70 L |
| Range | 737 km |
| Cost per 100 km | 15-20 USD |
Emissions Standards
| Emission Standard | Euro 2 |
| CO₂ Emissions | 220 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| 1JZ-GE | Toyota | 2,492 cc | 200 hp | 254 Nm |
| VQ25DE | Nissan | 2,495 cc | 190 hp | 240 Nm |
Pros
- Smooth and high-revving
- Good power-to-weight ratio
- Reliable with proper maintenance
Cons
- Cooling system issues
- Nikasil lining problems in early models
- Higher maintenance costs compared to some competitors