Under the Hood
Both engines incorporate direct fuel injection and turbocharging. The xDrive35i uses a new 3.0-liter inline-six-cylinder with one turbocharger, while the xDrive50i uses a 4.4-liter V-8 with two. Power ratings are unchanged on the new six-cylinder, but BMW says it is more efficient. BMW says both engines promise minimal turbo lag and a flat torque curve that begins under 2,000 rpm.
300-horsepower, 3.0-liter six-cylinder with 300 pounds-feet of torque
(xDrive35i)
400-hp, 4.4-liter eight-cylinder with 450 pounds-feet of torque (xDrive50i)
New eight-speed automatic transmission
xDrive's Dynamic Performance Control doles out power from front to rear and side
to side, at least among the rear wheels
Differential electronically varies power proactively from a full 50/50 lock to
as much as 100 percent going to either wheel to enhance performance and safety
Adaptive Drive system electronically alters suspension's stiffness between
sport- and comfort-oriented settings to suit different driving conditions
See also:
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
Notes
Working in the engine
compartment
Never attempt to perform any service or
repair operations on your vehicle without the
necessary professional technical training.
If you are unfamiliar with t ...
System limits
Personal responsibility
The system cannot serve as a substitute
for the driver's personal judgment of the course
of the road and the traffic situation.
In the event of a warning, do not jerk th ...