The "EML" warning light in a BMW indicates
a problem with the "drive by wire" throttle control system."
"EML" is an acronym for "Elektronische
Motorleistungsregelung". Loosely translated from the original German for the BMW
owner means Electrionic Engine Power
Control. "EML" is BMW's system name for electronic
throttle management. The "EML" system, in it's most basic sense consists of an
accelerator pedal (with an electronic position sensor), a computer module (usu.
integrated with the main engine computer), and an EDK (Elektronische
Drosselklappe or Electronic throttle valve). The EDK is also known as a "drive
by wire" throttle. "EDK" throttles use a computer controlled stepper motor
rather than a purely mechanical linkage (usu. metal cable attached directly to
the accelerator pedal) to control the opening and closing of the throttle plate.
"Drive by wire" throttles are very common
on modern vehicles starting in the late nineties up through the present day.
"Drive by wire" technology enables very precise throttle control to improve
drivability and vehicle emissions, as well as many convenience features like
electronic cruise control, traction control & stability control. BMW first implemented "drive by wire" in
very limited quantities on the most expensive & sophistocated BMW models
starting in 1988.
The latest generation of advanced vehicle
features to take advandage of "drive by wire" technology are radar guided cruise
control, accident avoidance control, autonomous-driving, and autonomous-parking
systems.
Read more: http://wiki.answers.com/Q/What_does_eml_warning_light_on_a_bmw_mean#ixzz1OnBNssKH
My 1999 bmw eml just came on what does this mean?
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