BMW 6 series 2007 3.0 diesel description
Cabrio BMW 635d Cabrio has been produced from September, 2007 to January, 2011. It has six-cylinder diesel engine with displacement of 3.0 litres, which produces power of 286 horsepower on 4400 rpm and torque 580 Nm (Newton metres) on 1750 revolutions per minute.
This 6-cylinder 24-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has Common Rail fuel system, this is an atmospheric engine (without turbine). Engine versions compliant with Euro 3 and Euro 4 emission standards available. Engine lifespan (mileage before major repairs or overhaul) can last from 270 up to 450 thousand kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs
The BMW M57 engine is regarded as one of the best German-built power units. Its inline-six layout is praised for reliability, and cars equipped with this engine are often more desirable on the used ...
This BMW 6 series 3.0 engine oil type is 5W-30 and oil capacity is 8 litres.
BMW 635d Cabrio has classical rear wheel drive (RWD) and automatic gearbox with 6 gears.
BMW 635d Cabrio accelerates to speed 100 kilometres per hour in 6.6 seconds. The maximum speed of this car is 250 km/h.
BMW 635d Cabrio fuel consumption is 7.2 litres per 100km in combined city/highway mode (13.9 km/l) - this is the most fuel efficient BMW 6 sērija 2007 - 2011 version, fuel consumption in city - 9.6 l/100km, highway fuel economy - 5.8 l/100km. Fuel tank capacity is 70 litres or 18.49 gallons, which gives a mileage up to 960 kilometers without refueling in urban cycle and even up to 1200 kilometers on highway.
According to user reviews, this BMW real everyday fuel consumption is 8.8 litres per 100 km, which is 22% more than the manufacturer's stated. More - Real BMW 6 series fuel consumption.

BMW 635d Cabrio technical data
Model: | BMW 635d Cabrio | ||
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Body style: | Cabrio | ||
Production period: | 2007. September ... 2011. January | ||
Engine: | 2993 cm3 Diesel, 6 cylinders | CO2 emissions: | 190 g/km |
Power: | 286 HP ON 4400 RPM | Torque: | 580 NM ON 1750 RPM |
Gearbox: | Automatic gearbox (6 gears) | Drive type: | Rear wheel drive (RWD) |
Top speed: | 250 km/h | Acceleration 0-100 km/h: | 6.6 seconds |
Fuel consumption (l/100km): | 7.2 (combined) 9.6 (urban) 5.8 (highway) | ||
Real fuel consumption: | 8.8 l/100km (26.7 MPG) by user reviews from various sources | ||
Fuel tank capacity: | 70 litres (18.5 gallons) | ||
Car dimensions: | 4.82m (length) 1.86m (width) 1.37m (height) | ||
Turning diameter: | 11.4 meters | ||
Trunk capacity: | 300 litres | ||
Gross weight: | 2260 kg |
BMW 635d Cabrio engine M57D30TU2
Engine reliability and common problems:
The BMW M57 engine is regarded as one of the best German-built power units. Its inline-six layout is praised for reliability, and cars equipped with this engine are often more desirable on the used market. Despite delivering strong performance, the engine remains fuel-efficient and user-friendly.The Bosch Common Rail system with electromagnetic injectors is highly reliable and long-lasting, provided high-quality fuel and regular maintenance are ensured. At higher mileage, occasional issues may arise, such as leaks at the fuel rail pressure regulator or failure of the main pump, though in some cases, replacing the internal filter solves the problem. Failures are most often linked to poor fuel quality. For engines built before 2003, injectors are repairable—later versions usually require full replacement.
The turbocharger itself is robust and rarely fails. Most boost-related problems stem from cracked vacuum lines or a stuck pressure regulator. A faulty crankcase ventilation system can also cause oil to be forced through the turbo.
Timing chains in the first two engine generations were known to last over 500,000 km. However this, the third generation, received an updated timing setup, may require chain replacement before reaching 300,000 km—a costly repair.
Other recurring issues include coolant leaks from plastic piping, thermostat failure, malfunctioning viscous fan clutch, worn-out crankshaft damper pulleys, or failure of the glow plug control module. Additionally, second-generation engines used a steel exhaust manifold, which was prone to cracking, while the first and third generations came with a more durable cast iron version.
Overall, this engine can last around 270,000 to 450,000 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 | 2993 cm3 |
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Number of cylinders | 6 |
Bore (cylinder diameter) | 84 mm |
Stroke length (piston move) | 90 mm |
Compression ratio | 17 : 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 |
Timing chain change interval | 200,000 km (recommended) Sometimes manufacturers do not specify timing chain replacement intervals and design chains for engine life. However, once the recommended change interval has been reached, it is recommended to periodically check the condition of the chain and to change the chain if excessive stretching is detected or if unusual noises from the engine or other symptoms occur. |
Fuel system | Common Rail Common rail fuel injection provides more engine power, is quieter, more environmentally friendly and offers better fuel economy, but is more expensive to maintain and repair. |
BMW 635d Cabrio oil type | 5W-30 |
Oil capacity | 8 litres (8.5 quarts) More service info |
Coolant capacity | 8.2 litres (8.7 quarts) |
Power | 231 - 286 HP ON 4400 RPM |
Torque | 500 - 580 NM ON 1750 RPM |
Start of production (year) | 2005 |
Duration of production | 5 years |
Engine also used on | BMW 5 sērija BMW 3 sērija BMW X5 BMW 7 sērija BMW X3 BMW X6 |
All BMW 6 series cabrio [2007 - 2011] modifications
Modification | Engine | Power | Consumption | Gearbox |
---|---|---|---|---|
BMW 630i Cabrio
Most fuel efficient petrol version |
3.0 Petrol | 272 HP | 9.6 l/100km | Manual (6) |
BMW 630i Cabrio | 3.0 Petrol | 272 HP | 9.9 l/100km | Automatic (6) |
BMW 635d Cabrio | 3.0 Diesel | 286 HP | 7.2 l/100km | Automatic (6) |
BMW 650i Cabrio
Most dynamic version - 100 km/h in 5.7 seconds |
4.8 Petrol | 367 HP | 12.9 l/100km | Manual (6) |
BMW 650i Cabrio
Most powerfull petrol version (367 HP) |
4.8 Petrol | 367 HP | 11.7 l/100km | Automatic (6) |