BMW X-Drive 4X4 System
BMW X-Drive 4X4 System
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The BMW all-wheel drive or 4X4 system, called X-Drive, ensures that the
vehicle has the best traction all the time, improves agility and keeps you
safely on lane.
When parking, the system reacts to the need for high manoeuvrability at low
speed, by opening the clutch completely so the powertrain functions
optimally. Acting virtually instantaneously and in a manner as to go
virtually unnoticed by the vehicle's driver. X-Drive can direct up to 100%
of drive forces to one axle and allow the driver to start up quickly, even
on slippery surfaces or steep hills. X-Drive directs all power to the axles
with the greatest wheel traction.
X-Drive is the all time, all-wheel drive or 4X4 system from BMW. Under
normal circumstances, it distributes driver power between the front and
rear axles in a nominal 45-55 ratio, and changes this figure depending on
when the road surface or overall driving conditions change. X-Drive allows
power to be split between the front and rear axles through use of a
multiplate clutch located between the gearbox and the drive shaft. This
setup allows X-Drive vehicles to split power in virtually any way it
pleases. Torque can be transferred to the front wheels via electronically
controlled multi plate clutch that is located in the transfer case. X-Drive
does not have a center differential. Most of the time, the clutch is
partially locked and power is transferred to both axles in proportion 45-55
front to rear. The power distribution can be altered to continuously
variable levels from 50-50 to 0-100.
Driving on a winding road in fast style is .....
Get the whole story right now in this video... Enjoy....
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B5 Audi S4 quattro VAST Stage 3 FrankenTurbo Borla 0-60 mph AWD Launch Control & Drift...
A video compilation demonstrating the 2-step "launch control" feature of my
custom VAST performance Stage 3 Frankenturbo tune. When the vehicle is stopped, the rev
limit is set at 4,400 RPM for consistent launching. While holding this
RPM, the turbos can produce up to about
6 psi with no load.
With this setup, 0-60 mph times in the high 3's are obtainable with a quick
The S4 also has piggie downpipes and a Borla single 3 inch Exhaust system.
Some bonus footage of a coworker who had never ridden in a semi-fast car
before is also included. :-)
*edit* Unfortunately the girl in this video has passed away of Cystic
Fibrosis (4/20/2013). RIP. She was a wonderful girl and will be missed by
Music: Jason Shaw @ audionautix.com (under Creative Commons License 3.0)
Footage shot with Pentax K7 + DA*16-50mm, GoPro HD Hero, and iPhone4.
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2013 Audi S4 Quattro Review & Test-Drive by The Car Pro
2013 Audi S4 Quattro Review & Test-Drive by The Car Pro, Jerry Reynolds.
For more straight talk & honest answers about everything automotive and to
find out when the Car Pro Show airs in your area, visit www.carprousa.com
Road Test: 2013 Audi S4/S5
They may not be all new, but the 2013 Audi S4 Sedan and S5 Coupe have been
significantly refreshened, with more style and features to keep pace with
the marketplace. John Davis has the MotorWeek road test review.
Audi RS3 2011 - Drifting on snow (Official)
Audi RS5 and A1 quattro SE: http://www.youtube.com/watch?v=wlRGx_GspXE
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B7 Audi S4 in the snow
Playing with my GoPro cam after a 12" snow fall in Denver. Driving my B7
Audi S4 with Grislaved Nordfrost 5 snow tires. LOTS of traction! It's
hard to see how deep the snow is from the camera view - you can see it come
over the hood of the car, and in through the windows is some spots.
Audi quattro Loves Snow
Winter comes every year, why fight it? Audi quattro ensures grip in all
surfaces, meaning you don't have to put up with being stuck in the snow.
How has everyone handled the snow this year? We would love to hear your