BMW Z4 (E85, facelift 2006) 2.5i (177 hp)
Gasoline engine with 177 hp (130 kW) and 170 lb-ft (230 Nm), built 2006–2008, convertible body, rear-wheel drive. The BMW Z4 (E85, facelift 2006) has 5 more powerful gasoline versions.
EnlargePower177 hp (130 kW)
Torque170 lb-ft (230 Nm)
0–62 mph7.1 s
Top speed142 mph (229 km/h)
FuelGasoline
Specifications
Engine
| Engine version | 2.5i (177 hp) |
|---|---|
| Engine code | N52B25 |
| Displacement | 2.5 L (2,497 cm³) |
| Cylinders | 6 |
| Cylinder layout | Inline |
| Engine position | Front, Longitudinal |
| Valves per cylinder | 4 |
| Valvetrain | DOHC |
| Fuel system | Multi-point indirect injection |
| Compression ratio | 11 |
| Bore | 82 mm |
| Stroke | 78.8 mm |
| Engine oil capacity | 6.9 qt (6.5 l) |
Performance
| Power | 177 hp (130 kW) @ 5800 rpm |
|---|---|
| Torque | 170 lb-ft (230 Nm) @ 3500 rpm |
| 0–62 mph (0–100 km/h) | 7.1 s |
| Top speed | 142 mph (229 km/h) |
Fuel economy and emissions
| Fuel | Gasoline |
|---|---|
| City | 20 mpg (11.8 l/100 km) |
| Fuel tank | 14.5 gal (55 l) |
Body, dimensions and weight
| Body style | Convertible |
|---|---|
| Doors | 2 |
| Length | 161.1 in (4,091 mm) |
| Width | 70.1 in (1,781 mm) |
| Height | 51.1 in (1,299 mm) |
| Curb weight | 2,811 lb (1,275 kg) |
| Gross vehicle weight | 3,461 lb (1,570 kg) |
Drivetrain and chassis
| Drive | Rear-wheel drive |
|---|---|
| Gears | 6 |
| Front suspension | Independent, MacPherson strut, stabilizer bar |
| Rear suspension | Coil spring |
| Tires | 225/50 R16 |
| Wheels | R16 |
| Driver assistance | ABS (Anti-lock braking system) |
What to check on a BMW Z4 with this engine
- On a gasoline engine, check the oil consumption, the timing chain or belt and, on turbo engines, the turbocharger.
- Test the clutch or the automatic transmission from a cold start and in the low gears.
- Compare the odometer with the readings in the service records and in the VIN history report: a big gap means the mileage was rolled back.
Other BMW Z4 (E85, facelift 2006) engines
| Engine | Fuel | Power | Combined |
|---|---|---|---|
| 2.0i 16V (150 hp) | Gasoline | 150 hp (110 kW) | |
| 2.5 si (218 hp) | Gasoline | 218 hp (160 kW) | |
| 2.5 si (218 hp) Automatic | Gasoline | 218 hp (160 kW) | |
| 2.5i (177 hp) Automatic | Gasoline | 177 hp (130 kW) | |
| 3.0 si (265 hp) | Gasoline | 265 hp (195 kW) | |
| 3.0 si (265 hp) Automatic | Gasoline | 265 hp (195 kW) | |
| M 3.2 (343 hp) | Gasoline | 343 hp (252 kW) |