BMW 740i (G11/G12)
BMW 7 series 2015 3.0 petrol description
Sedan BMW 740i has been produced from January, 2015 to January, 2019. It has six-cylinder petrol engine with displacement of 3.0 litres, which produces power of 326 horsepower and torque 450 Nm (Newton metres).
This 6-cylinder 24-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system and Twin-Scroll turbine. The engine meets the Euro 6 emissions standard. Approximate engine life expectancy (mileage until serious repairs are required) for this engine is between 210 000 and 360 000 kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs
The B58 engine, compared to its predecessor, features a 20% increase in boost pressure, a closed-deck cylinder block design, an increased compression ratio of 11.0:1, and a slightly larger displacement of 2998 cc, up from 2979 cc, with an additional weight of 8 ...
This BMW 7 series 3.0 engine oil type is 0W-20, 0W-30, 5W-30 and oil capacity is 6.5 litres.
BMW 740i has classical rear wheel drive (RWD) and automatic gearbox with 8 gears.
BMW 740i accelerates to speed 100 kilometres per hour in 5.5 seconds. The maximum speed of this car is 250 km/h.
In combined cycle (city and motorway), the BMW 740i fuel consumption is 7 litres per 100km (14.3 km/l), fuel consumption in city - 9.7 l/100km, highway fuel economy - 5.5 l/100km..
According to user reviews, this BMW real everyday fuel consumption is 9.2 litres per 100 km, which is 31% more than the manufacturer's stated. More - Real BMW 7 series fuel consumption.
BMW 740i technical data
| Model: | BMW 740i | ||
|---|---|---|---|
| Body style: | Sedan | ||
| Production period: | 2015. January ... 2019. January | ||
| Engine: | 2998 cm3 Petrol, 6 cylinders | CO2 emissions: | no data |
| Power: | 326 HP | Torque: | 450 NM |
| Gearbox: | Automatic gearbox (8 gears) | Drive type: | Rear wheel drive (RWD) |
| Top speed: | 250 km/h | Acceleration 0-100 km/h: | 5.5 seconds |
| Fuel consumption (l/100km): | 7.0 (combined) 9.7 (urban) 5.5 (highway) | ||
| Real fuel consumption: | 9.2 l/100km (25.6 MPG) by user reviews from various sources | ||
| Car dimensions: | 5.10m (length) 1.90m (width) 1.48m (height) | ||
| Trunk capacity: | 515 litres | ||
BMW 740i engine B58B30M0
Engine reliability and common problems:
The B58 engine, compared to its predecessor, features a 20% increase in boost pressure, a closed-deck cylinder block design, an increased compression ratio of 11.0:1, and a slightly larger displacement of 2998 cc, up from 2979 cc, with an additional weight of 8 kg. Despite its advancements, the engine has several common issues.Coolant leaks are frequently reported, often linked to a drop in coolant levels without an obvious cause. In some cases, replacing the expansion tank cap resolves the issue. Head gasket failure is another recurring problem due to the engine's high operating temperatures. Symptoms include a strong smell of burning oil and sometimes visible smoke. Oil leaks are also common, originating from areas such as the oil filter housing, oil cooler, or head gasket. Prompt repairs are crucial to prevent oil starvation and potential engine damage.
The B58, like many direct-injection engines, often experiences carbon buildup on intake valves, leading to fluctuating idle and reduced performance. Less frequently, issues arise with the VANOS system, responsible for variable valve timing. Symptoms include power loss, uneven idle, stalling, and high fuel consumption. VANOS problems typically appear around 80,000–100,000 km. Oil filter disintegration is another concern, with parts of the filter sometimes breaking off and getting stuck in the housing. This can lead to oil leaks and other complications, often caused by low-quality filters or improper replacement.
Additionally, valve cover gaskets are prone to leaks, with symptoms such as the smell of burning oil, smoke, or low oil level warnings. Plastic valve covers can also crack over time. These issues usually arise between 60,000 and 100,000 km. Some BMW G-series models produced before 2021 may encounter failures in the oil pump due to a design flaw in the internal bushing. The recommended solution is upgrading to the sixth revision oil pump with a metal component.
Overall, while the B58 engine is a significant improvement in performance and efficiency, these known issues highlight the importance of regular maintenance, timely repairs, and the use of high-quality parts to ensure reliability.
Overall, this engine can last around 210,000 to 360,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.
| Engine displacement | 2998 cm3 |
|---|---|
| Number of cylinders | 6 |
| Bore (cylinder diameter) | 82 mm |
| Stroke length (piston move) | 94.6 mm |
| Compression ratio | 11 : 1 |
| Camshaft drive | Timing chain Chain motors are considered more reliable, chain replacement usually is required less often than a timing belt, but they are often louder and vibrate more. |
| Fuel system | Injection |
| BMW 740i oil type | 0W-20, 0W-30, 5W-30 |
| Oil capacity | 6.5 litres (6.9 quarts) |
| Power | 326 - 340 HP |
| Torque | 450 - 500 NM |
| Start of production (year) | 2015 |
| Duration of production | 10 years |
Often in the first years of production, engines tend to have various constructive problems, so it is recommended to choose a car with this engine from 2018 onwards. |
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| Engine also used on | BMW 5 sērija BMW 3 sērija BMW X5 BMW 1 sērija and 8 other models |
Generally, the use of an engine in several models and its long production run is an indication of the quality of the engine and the success of its design. |
Most often compared to
All BMW 7 series sedan [2015 - 2019] modifications
| Modification | Engine | Power | Consumption | Drive type |
|---|---|---|---|---|
| BMW 740e iPerformance Jan 2016 — Dec 2019 | 2.0 Hybrid | 258 HP | - | Rear wheel |
|
BMW 740i
Jan 2015 — Jan 2019 Most fuel efficient petrol version |
3.0 Petrol | 326 HP | 7.0 l/100km | Rear wheel |
|
BMW 740Li
Jan 2015 — Jan 2019 Most fuel efficient petrol version |
3.0 Petrol | 326 HP | 7.0 l/100km | Rear wheel |
| BMW 750Li Jan 2015 — Jan 2019 | 3.0 Petrol | 326 HP | 8.3 l/100km | Rear wheel |
| BMW 750LixDrive 4x4 Jan 2015 — Jan 2019 | 3.0 Petrol | 326 HP | 8.5 l/100km | All wheel |
|
BMW 730d
Jan 2015 — Jan 2019 Most fuel efficient diesel version |
3.0 Diesel | 265 HP | 4.9 l/100km | Rear wheel |
|
BMW 730Ld
Jan 2015 — Jan 2019 Most fuel efficient diesel version |
3.0 Diesel | 265 HP | 4.9 l/100km | Rear wheel |
|
BMW 730d xDrive 4x4
Jan 2015 — Jan 2019 Most fuel efficient diesel version by real consumption |
3.0 Diesel | 265 HP | 5.2 l/100km | All wheel |
|
BMW 730Ld xDrive 4x4
Jan 2015 — Jan 2019 Most fuel efficient diesel version by real consumption |
3.0 Diesel | 265 HP | 5.2 l/100km | All wheel |
| BMW 740d xDrive 4x4 Jan 2015 — Jan 2019 | 3.0 Diesel | 320 HP | 5.3 l/100km | All wheel |
| BMW 740Ld xDrive 4x4 Jan 2015 — Jan 2019 | 3.0 Diesel | 320 HP | 5.4 l/100km | All wheel |
|
BMW 750d 4x4
Jan 2016 — Dec 2019 Most powerfull diesel version (400 HP) |
3.0 Diesel | 400 HP | 5.4 l/100km | All wheel |
|
BMW 750i
Jan 2015 — Jan 2019 Most powerfull petrol version (450 HP) |
4.4 Petrol | 450 HP | 8.1 l/100km | Rear wheel |
|
BMW 750i xDrive 4x4
Jan 2015 — Jan 2019 Most dynamic version - 100 km/h in 4.4 seconds |
4.4 Petrol | 450 HP | 8.3 l/100km | All wheel |