BMW M51D25 BMW M51D25
Дизельний рядний 6-циліндровий двигун з турбонаддувом, відомий своєю надійністю та економічністю.
20
Brand engines
1
Modifications
Technical Specifications
| Engine Displacement | 2.5 L (2,496 cc) |
| Configuration | Inline-6 |
| Number of Cylinders | 6 |
| Valves per Cylinder | 2 |
| Power | 143 - 150 л.с. |
| Torque | 300 - 330 Н*м |
| Cylinder Bore | 87.00 mm |
| Piston Stroke | 88.00 mm |
| Compression Ratio | 19.0:1 |
| Firing Order | 1-5-3-6-2-4 |
| Fuel System | Direct Injection |
| Aspiration | Turbocharged |
| Turbocharger | Garrett GT2052V |
| Intercooler | Yes |
| Maximum RPM | 4,200 rpm |
| Max Torque RPM | 2,000 rpm |
| Valve Train | SOHC |
| Timing Drive | Chain |
| Timing Chain Replacement | 250000 or as needed |
| Block Material | Cast Iron |
| Head Material | Aluminum |
| Engine Weight | 180 kg |
| Dimensions (L×W×H) | 700 × 600 × 600 mm |
| Lubrication System | Pressure lubrication |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | BMW M engine series |
| Manufacturing Plant | Dingolfing, Germany |
| Successor | M57D30 |
Maintenance
| Engine Oil Capacity | 6.5 L (with filter: 7 L) |
| Recommended Viscosity | 5W-40 |
| Oil Standard | ACEA B3/B4 |
| Recommended Brands | Castrol Magnatec, Mobil 1, Shell Helix |
| Oil Change Interval | 15 000 km or 12 mo |
| Oil Filter | 11427512361 |
| Air Filter |
13717520234
Replace every 60 000 km |
| Fuel filter | 16146750120 |
| Spark Plugs | |
| Coolant Capacity | 8 L |
| Coolant Type | G11/G12 (BMW Coolant) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 88°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 120°C |
| Critical Temperature | 130°C |
| Annual Maintenance Cost | 600-900 USD |
Reliability
Expected lifespan: 300 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Turbocharger failure | Medium | 150000-200000 km | $1000-1500 |
| Oil leaks from gaskets | Low | 100000-150000 km | $300-500 |
Known defects
- Early models had issues with the oil pump
- Potential for head gasket failure
Warranty extensions
- Extended warranty options available through Land Rover dealers
Tuning potential
Tuning potential: Medium | Max. safe power: 300 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 180 hp | 400 Nm |
ECU remap only Reliability impact: Minimal |
$500 |
| Stage 2 | 210 hp | 450 Nm |
ECU, Downpipe Required: Upgraded intercooler, ECU remap Reliability impact: Low |
$1500 |
| Stage 3 | 250 hp | 500 Nm |
- Required: Bigger turbo, Forged internals, ECU remap Reliability impact: Medium |
$3000 |
Popular modifications
- ECU remap
- Upgraded intercooler
- Performance exhaust
Tuning limitations
- Stock turbo limits at ~220hp
- Cooling system upgrades recommended for high power
Cars with the BMW M51D25 engine
This engine was fitted to 1 model
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
Land Rover | Range Rover | Range Rover II | 1994 - 2002 |
All modifications (1)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Land Rover Range Rover | Range Rover II | 2.5 D 136 л.с. 5-Автомат 4x4 | 136 hp | 5-Автомат | 4x4 |
Interesting Facts
- The M51D25 was one of the first BMW diesel engines to feature a turbocharger.
- It was widely used in various Land Rover models for its reliability and torque.
Applications
Total produced: approximately 200000
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Land Rover Discovery | Series II | 1998-2004 | 143hp/150hp | Europe, Australia |
| Land Rover Defender | TD5 | 1998-2001 | 143hp | Europe, Australia |
Compatible transmissions: 5-speed Manual, 4-speed Automatic
Drive types: RWD, AWD
Fuel Economy
| Fuel Type | Diesel |
| Consumption (City) | 10 L/100km |
| Consumption (Highway) | 7 L/100km |
| Consumption (Combined) | 8.5 L/100km |
| Real Consumption | 9 L/100km |
| Fuel Tank Capacity | 75 L |
| Range | 882 km |
| Cost per 100 km | 10-15 USD |
Emissions Standards
| Emission Standard | Euro 2 |
| CO₂ Emissions | 200 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| Mercedes OM606 | Mercedes-Benz | 2,996 cc | 150 hp | 320 Nm |
| Volkswagen 1.9 TDI | Volkswagen | 1,896 cc | 130 hp | 310 Nm |
Pros
- Strong torque delivery at low RPM
- Good fuel economy for a diesel engine
Cons
- Higher maintenance costs compared to naturally aspirated engines
- Turbocharger can be a weak point