BMW 640i xDrive Cabrio

BMW 6 series 2015 3.0 petrol description

Cabrio BMW 640i xDrive Cabrio has been produced from January, 2015 to January, 2017. It has six-cylinder petrol engine with displacement of 3.0 litres, which produces power of 320 horsepower on 6000 rpm and torque 450 Nm (Newton metres) on 1300 revolutions per minute.

This 6-cylinder 24-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system and twinscroll turbine. The engine meets the Euro 5 emissions standard. Engine lifespan (mileage before major repairs or overhaul) can last from 240 up to 410 thousand kilometres. Remember that engine life depends on regular maintenance and the quality of the materials used (oils, fuels, etc.).
More engine specs 
Using poor quality oil on this engine will quickly lead to soot build-up, resulting in damage  ...  This BMW 6 series 3.0 engine oil type is 5W-30 and oil capacity is 6.5 litres.

BMW 640i xDrive Cabrio has all four wheel drive (AWD, 4x4) and automatic gearbox with 8 gears.
BMW 640i xDrive Cabrio accelerates to speed 100 kilometres per hour in 5.4 seconds. The maximum speed of this car is 250 km/h.

BMW 640i xDrive Cabrio fuel consumption is 8 litres per 100km in combined city/highway mode (12.5 km/l) - this is one of most fuel efficient BMW 6 sērija 2015 - 2018 versions, city fuel economy - 11.2 l/100km, fuel consumption on highway - 6.2 l/100km. Fuel tank capacity is 70 litres or 18.49 gallons, which gives a mileage up to 860 kilometers without refueling in urban cycle and even up to 1120 kilometers on highway.
According to user reviews, this BMW real everyday fuel consumption is 10.4 litres per 100 km, which is 30% more than the manufacturer's stated. More - Real BMW 6 series fuel consumption.

With the same engine there is also BMW 6 series version with rear wheel drive and automatic gearbox (BMW 640i Cabrio AT) available, which manufacturer's fuel consumption is lower by 0.4 litres per 100 km or 5 % - 7.6 litres per 100 km, whereas users reported real fuel consumption is similar - 10.4 litres per 100 km.
BMW 6 series 3.0 service information and maintenance intervals Oil change intervals, capacities and specifications, service information for filters, spark plugs, belts etc.
BMW 6 series 2015

BMW 640i xDrive Cabrio technical data

Model: BMW 640i xDrive Cabrio
Body style: Cabrio
Production period: 2015. January ... 2017. January 
Engine: 2979 cm3 Petrol, 6 cylinders CO2 emissions: no data
Power: 320 HP ON 6000 RPM Torque: 450 NM ON 1300 RPM
Gearbox: Automatic gearbox (8 gears) Drive type: All wheel drive (AWD, 4x4)
Top speed: 250 km/h Acceleration 0-100 km/h: 5.4 seconds
Fuel consumption (l/100km): 8.0 (combined) 11.2 (urban) 6.2 (highway)
Real fuel consumption: 10.4 l/100km (22.6 MPG) by user reviews from various sources
Fuel tank capacity: 70 litres (18.5 gallons)
Car dimensions: 4.89m (length) 1.89m (width) 1.37m (height)
Turning diameter: 11.7 meters
Ground clearance: 123 mm (approximate, with standard suspension, unladen vehicle)
Trunk capacity: 300 litres
Trunk max capacity: 350 litres (with rear seats folded down)
Gross weight: 2390 kg

BMW 640i xDrive Cabrio engine N55B30 O0

Engine reliability and common problems:

Using poor quality oil on this engine will quickly lead to soot build-up, resulting in damage to the hydrocompensators, Vanos and Valvetronic systems.
Overall, this engine can last around 240,000 to 410,000 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 2979 cm3
Number of cylinders 6
Bore (cylinder diameter) 84 mm
Stroke length (piston move) 89.6 mm
Compression ratio 10.2 : 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 640i xDrive Cabrio oil type 5W-30
Oil capacity 6.5 litres (6.9 quarts) More service info
Coolant capacity 9.3 litres (9.8 quarts)
Power 320 - 326 HP ON 6000 RPM
Torque 450 NM ON 1300 RPM
Start of production (year) 2009
Duration of production 9 years
Engine also used on BMW 7 sērija BMW 1 sērija BMW 2 sērija

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 6 series cabrio [2015 - 2018] modifications

Modification Engine Power Consumption Drive type
BMW 640i Cabrio Jan 2015 — Jan 2017

Most fuel efficient petrol version

3.0 Petrol 320 HP 7.6 l/100km Rear wheel
BMW 640i xDrive Cabrio 4x4 Jan 2015 — Jan 2017

Most fuel efficient petrol version by real consumption

3.0 Petrol 320 HP 8.0 l/100km All wheel
BMW 640d 3.0 Diesel 313 HP - Rear wheel
BMW 640d 4x4 3.0 Diesel 313 HP - All wheel
BMW 650i Cabrio Jan 2015 — Jan 2017

Most powerfull petrol version (450 HP)

4.4 Petrol 450 HP 8.9 l/100km Rear wheel
BMW 650i xDrive Cabrio 4x4 Jan 2015 — Jan 2017

Most dynamic version - 100 km/h in 4.5 seconds

4.4 Petrol 450 HP 9.3 l/100km All wheel
BMW 6 series 2015 reviews
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