BMW 4 series 2020 2.0 petrol description
Coupe BMW 420i is being produced from January, 2020. It has four-cylinder petrol engine with displacement of 2.0 litres, which produces power of 184 horsepower on 5000 rpm and torque 300 Nm (Newton metres) on 1350 revolutions per minute.
This 4-cylinder 16-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system and MHI TD04LR6W turbine. The engine meets the Euro 6 emissions standard. Engine lifespan (mileage before major repairs or overhaul) can last from 200 up to 340 thousand kilometres. It is important to remember that engine life is highly dependent on regular maintenance and the quality of the oils and fuels used.
More engine specs
Compared to their predecessors, B48 engines are more robust and less prone to major failures. They are well-suited for chip tuning, which can noticeably enhance ...
This BMW 4 series 2.0 engine oil type is 0W-30, 5W-30, 0W-20 and oil capacity is 5.3 litres.
BMW 420i has classical rear wheel drive (RWD) and automatic gearbox with 8 gears.
BMW 420i accelerates to speed 100 kilometres per hour in 7.5 seconds. The maximum speed of this car is 240 km/h.
BMW 420i fuel consumption is 5.8 litres per 100km in combined city/highway mode (17.2 km/l), fuel consumption in city - 7.2 l/100km, highway fuel economy - 5 l/100km. Fuel tank capacity is 59 litres or 15.59 gallons, which gives a mileage up to 1000 kilometers without refueling in urban cycle and even up to 1180 kilometers on highway.
According to user reviews, this BMW real everyday fuel consumption is 7.5 litres per 100 km, which is 29% more than the manufacturer's stated. More - Real BMW 4 series fuel consumption.
BMW 420i technical data
| Model: | BMW 420i | ||
|---|---|---|---|
| Body style: | Coupe | ||
| Production period: | 2020. January | ||
| Engine: | 1998 cm3 Petrol, 4 cylinders | CO2 emissions: | no data |
| Power: | 184 HP ON 5000 RPM | Torque: | 300 NM ON 1350 RPM |
| Gearbox: | Automatic gearbox (8 gears) | Drive type: | Rear wheel drive (RWD) |
| Top speed: | 240 km/h | Acceleration 0-100 km/h: | 7.5 seconds |
| Fuel consumption (l/100km): | 5.8 (combined) 7.2 (urban) 5.0 (highway) | ||
| Real fuel consumption: | 7.5 l/100km (31.4 MPG) by user reviews from various sources | ||
| Fuel tank capacity: | 59 litres (15.6 gallons) | ||
| Car dimensions: | 4.77m (length) 1.85m (width) 1.38m (height) | ||
| Turning diameter: | 11.4 meters | ||
| Trunk capacity: | 440 litres | ||
| Gross weight: | 2015 kg | ||
BMW 420i engine B48B20M1
Engine reliability and common problems:
Compared to their predecessors, B48 engines are more robust and less prone to major failures. They are well-suited for chip tuning, which can noticeably enhance performance and responsiveness without compromising reliability.Oil consumption, while significantly improved over earlier engines, may still appear closer to 100,000 km, often due to hardened valve stem seals. Another common issue is unstable idle or fault codes related to a lean mixture, typically caused by a faulty fuel tank ventilation valve — a relatively inexpensive part.
The cooling system is a known weak point. Coolant leaks may result from seal failures, cracks, thermostat or pump malfunctions, or general contamination. Symptoms include engine overheating, white smoke from the exhaust, poor coolant quality, visible leaks, warnings on the dashboard, and elevated temperature readings.
These engines are sensitive to fuel quality and oil change intervals. Cutting corners on maintenance often leads to costly repairs or even engine replacement.
At higher mileage, weaknesses may also include chain tensioners, the VANOS and Valvetronic systems, high-pressure fuel pumps, throttle actuators, and the turbocharger.
Overall, the B48 is a reliable and practical engine without inherent flaws. The mentioned issues tend to appear only under certain conditions and are not universal across all units.
Overall, this engine can last around 200,000 to 340,000 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 | 1998 cm3 |
|---|---|
| Number of cylinders | 4 |
| 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. More service info |
| Fuel system | Injection |
| BMW 420i oil type | 0W-30, 5W-30, 0W-20 |
| Oil capacity | 5.3 litres (5.6 quarts) More service info |
| Power | 184 - 197 HP ON 5000 RPM |
| Torque | 300 - 320 NM ON 1350 RPM |
| Start of production (year) | 2014 |
| Duration of production | 11 years |
| Engine also used on | BMW 3 sērija BMW X3 BMW Z4 BMW X4 |
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. |
All BMW 4 series coupe [2020 modifications
| Modification | Engine | Power | Consumption | Drive type |
|---|---|---|---|---|
|
BMW 420i
Most fuel efficient petrol version |
2.0 Petrol | 184 HP | 5.8 l/100km | Rear wheel |
|
BMW 420d
Most fuel efficient diesel version |
2.0 Diesel | 190 HP | 4.2 l/100km | Rear wheel |
| BMW 420d xDrive 4x4 | 2.0 Diesel | 190 HP | 4.6 l/100km | All wheel |
|
BMW M440i AT xDrive 4x4
Most dynamic version - 100 km/h in 4.5 seconds |
3.0 Petrol | 374 HP | 7.1 l/100km | All wheel |