BMW 640i xDrive Coupe

BMW 6 series 2011 3.0 petrol description

Coupe BMW 640i xDrive Coupe has been produced from January, 2011 to December, 2015. It has six-cylinder petrol engine with displacement of 3.0 litres, which produces power of 320 horsepower on 5800 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. Average engine life expectancy (mileage before serious repairs are needed) is from 240 000 to 410 000 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 Coupe has all four wheel drive (AWD, 4x4) and automatic gearbox with 8 gears.
BMW 640i xDrive Coupe accelerates to speed 100 kilometres per hour in 5.2 seconds. The maximum speed of this car is 250 km/h.

The fuel consumption of this BMW 640i xDrive Coupe in combined mode (combining urban and highway driving) is 8.1 litres per 100km (12.3 km/l), fuel consumption in city - 11 l/100km, highway fuel economy - 6.4 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 1080 kilometers on highway.
According to user reviews, this BMW real everyday fuel consumption is 9.6 litres per 100 km, which is 19% 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 AT) available
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 2011

BMW 640i xDrive Coupe technical data

Model: BMW 640i xDrive Coupe
Body style: Coupe
Production period: 2011. January ... 2015. December 
Engine: 2979 cm3 Petrol, 6 cylinders CO2 emissions: 177 g/km
Power: 320 HP ON 5800 RPM Torque: 450 NM ON 1300 RPM
Gearbox: Automatic gearbox (8 gears) Drive type: All wheel drive (AWD, 4x4)
Maximum speed: 250 km/h Acceleration 0-100 km/h: 5.2 seconds
Fuel consumption (l/100km): 8.1 (combined) 11.0 (urban) 6.4 (highway)
Real fuel consumption: 9.6 l/100km (24.5 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: 124 mm (approximate, with standard suspension, unladen vehicle)
Trunk capacity: 460 litres
Gross weight: 2255 kg

BMW 640i xDrive Coupe 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 Coupe 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 5800 RPM
Torque 450 NM ON 1300 RPM
Start of production (year) 2009
Duration of production 9 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 2012 onwards.

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 coupe [2011 - 2015] modifications

Modification Engine Power Consumption Drive type
BMW 640i

Most fuel efficient petrol version by real consumption

3.0 Petrol 320 HP - Rear wheel
BMW 640i xDrive Coupe 4x4

Most fuel efficient petrol version by real consumption

3.0 Petrol 320 HP 8.1 l/100km All wheel
BMW 640d

Most fuel efficient diesel version

3.0 Diesel 313 HP 4.8 l/100km Rear wheel
BMW 640d xDrive Coupe 4x4 Jan 2011 — Jan 2015 3.0 Diesel 313 HP 5.8 l/100km All wheel
BMW 650i Jan 2011 — Dec 2012

Most fuel efficient petrol version

4.4 Petrol 408 HP 7.7 l/100km Rear wheel
BMW 650i xDrive Coupe 4x4 Jan 2011 — Jan 2015 4.4 Petrol 408 HP 11.3 l/100km All wheel
BMW 650i Jan 2012 — Dec 2015

Most powerfull petrol version (450 HP)

4.4 Petrol 450 HP - Rear wheel
BMW 650i 4x4 Jan 2012 — Dec 2015

Most dynamic version - 100 km/h in 4.4 seconds

4.4 Petrol 450 HP - All wheel
BMW 6 series 2011 reviews
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