BMW 7 Series Engine
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About BMW 7 Series engines
The BMW 7 Series is a line of full-size luxury vehicles produced by the German automaker BMW. Introduced in 1977, it is BMW’s flagship car and is only available as a sedan.
E23 1977 to 1986
All E23 7 Series models (with the exception of the 745i) were built with the 12-valve M30 six-cylinder engine. Although most E23 engines were fuel-injected, two models (the 728 and 730) were available with a Solex four-barrel carburetor until 1979, when they were replaced by the fuel-injected 728i. Early fuel-injected models used the Bosch L-jetronic system while later models used the more advanced digital Bosch Motronic system. The 735i received the Motronic 3430 cc engine replacing the 3453 cc.
E32 1987 to 1995
The E32 was introduced in 1986, with the 730i and 735i featuring 3.0 L and 3.5 L straight-6 engines respectively, and a new, 5.0 L, 300 horsepower V12 engine for the 750i. In 1992, 3.0 L and 4.0 L V8 engines were added to the lineup (730i and 740i).
E38 1994 to 2001
These engine variants in were 725tds, 728i, 730i, 730d, 735i, 740i (4.0 and 4.4 L), 740d and 750i (with a 5.4 L V12 322 bhp engine.
The models were sold as the 740i, 740iL and 750iL. The 740i and 740iL shared the same 4.0 L V8 engine in model year 1995, but the next year the V8 grew to 4.4L while stated power stayed at 282 hp, though torque grew from 295 to 310 lb·ft.
Then again coinciding with the 1999 facelift, the V8’s power again stayed the same but now torque grew further to 324lb-ft, due to new variable valve timing. The 740iL is essentially a long wheelbase 740i (the “L” is from the german word for long, “lang”). The considerably rarer 5.4 L V12-powered 750iL was only available as a long body; there was no E38 750i in the US lineup.
The 750iL was BMW’s flagship sedan. It is perhaps best remembered for being the car driven by James Bond (Pierce Brosnan) in the 1997 film Tomorrow Never Dies.
E65/E66 2002 to 2008
Only the 750i, 750Li and 760Li were available from BMW dealerships. The 730i, 730d, 740i, 740d Turbodiesel and their long wheelbase counterparts were available in the rest of the world, in addition to the short wheelbase 760i.
- 2002–2005 745i: 4.4 L V8, 325 hp
- 2002–2005 745Li: 4.4 L V8, 325 hp
- 2006– 750i: 4.8 L V8, 360 hp
- 2006– 750Li: 4.8 L V8, 360 hp
- 2004–2006 760i: 6.0 L V12, 438 hp
- 2003– 760Li: 6.0 L V12, 438 hp
- 2007– Alpina B7: 4.4 L V8, 500 hp
In 2006 the 4.4 L V8 was replaced by a 4.8 L unit producing 367 hp and 361 lb·ft . The new model with the enlarged engine is now known as 750i and 750Li (for the long wheel-base model). The 750i and 750Li replace the 745i and 745Li in all world markets. The 745d, powered by a 4.4 L turbodiesel producing 329 hp has replaced the 740d. As before, a six-speed automatic transmission with Steptronic is standard on all models.
In 2007 the 7 series the engine options remained the same as with the 2006 model. BMW plans to offer a car that runs on both petrol and hydrogen, to be called the Hydrogen 7. Since the infrastructure for refueling a hydrogen fueled engine is not widely available, the V12 engine also runs on petrol. Drivers will be able to switch what fuel they are using with the push of a button. However, only 100 units have been built up to now for a limited edition. BMW has also developed a newer, more efficient hydrogen combustion engine, now on par with some of the most efficient diesel engines.
F01/F02 2009 The 5th generation F01/F02 came out January 2009, replacing the 4th generation 7 Series. Five variants are showcased at debut, the 750Li, the 740Li, the 750i, the 740i and the 730d. Numerous engines also power the 7 Series worldwide. BMW offers diesel, straight 6, V8 and V12 motors. An all aluminum 3.0 litre straight 6 cylinder diesel engine produces 245 hp. The peak torque figure of 540 N·m comes in at 1,750 rpm up through 3,000 rpm. Its 194g/km emission figure is class-leading for conventionally powered luxury cars, as is its 38.7 mpg fuel consumption figure.
In April 2009, BMW announced plans for a 760Li, which will be BMW’s new flagship model. The 760Li will be equipped with a twin-turbocharged V12 producing 544 horsepower, which will propel the car from 0 to 62 miles per hour in 4.6 seconds.
7 Series for 2010 BMW will be offering a bevy of new features for the 2010 BMW 7-Series. New choices include a recently developed twin-turbo diesel engine. The automaker plans to introduce the BMW 740d in the Autumn, which will feature a brand new straight 6 diesel engine. The all aluminum engine features BMW Twin Power Turbo Technology, and produces a maximum 306 horsepower and 600 Nm of torque. BMW reports a 0 to 100 km/h time of 6.3 seconds, with a limited top speed of 250 km/h. Although powerful, fuel consumption is far from terrible. The engine uses 6.9 liters of fuel per 100 km, translating to roughly 41 miles per imperial gallon. CO2 emissions are rated at 181 grams per kilometer.
The latest engine means the 7-Series may be purchased with one of either three petrol units or two diesel engines. The other diesel engine is a 245 hp six cylinder, available on the 730d. BMW says they will retune this engine to provide better fuel economy by 2010.
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