In , BMW introduced the td, powered
by the fastest diesel engine in the world at the
time. However, in those days, the common
perception of diesel engines was that they
were noisy, ran erratically, and left a trail of
toxic pollution in their wake.
W
ith the start of the BMW Effi cient-
Dynamics program, and fueled by
the desire to explore a new power source
for its vehicles, BMW began its modern
diesel program. Not content with the previ-
ously lower standards for diesel engines,
BMW engineers pledged to pursue a cleaner,
smoother, quieter, and more effi cient diesel
engine. As a result, many of their diesel-
power solutions break new ground – not only
for BMW, but for the entire auto industry,
helping to shape the standards of diesel
power for this century.
T
oday, BMW is not only renowned for its
Advanced Diesel engines, we’re winning
awards with them. In , the .-liter
inline six-cylinder Advanced Diesel engine
with Advanced Turbo technology won
“International Engine of the Year” honors in
the .-liter to .-liter category. And a
diesel-powered BMW model was named
“ World Green Car of the Year.”
W
ith these diesel engines, there’s no
sacrifi cing performance – it’s pure BMW
power, through and through. One element
that’s crucial to even power distribution and
smooth acceleration is our variable Advanced
Turbo technology. This system involves differ-
ent-size turbochargers that work together
seamlessly via an electronic engine control
unit. The smaller turbocharger kicks in at
lower engine speeds, developing mus cu lar,
reliable boost in response to even the slight-
est tap of the accelerator pedal, and without
any of the lag for merly associ ated with turbo-
charging. As engine speed increases, the
larger turbocharger takes over, developing a
maximum torque of lb-ft at just rpm.
A
nd by using precise, piezo direct-injection
technology, diesel fuel is conserved to a
remarkable degree. One tank – miles of
possibilities.
N
ot all benefi ts are merely performance-
related. From an environmental stand-
point, our diesel engines have never been
cleaner. Take, for instance, our approach to
emissions. Our advanced catalyst system
uses Diesel Exhaust Fluid (DEF), a specially
injected ammonia-based fl uid, to convert the
released nitric oxides into environmentally
compatible nitrogen and vapor. An additional
exhaust fi lter screens out other particles.
T
o see how clean a BMW Advanced Diesel
vehicle is, hold a white handkerchief to
the exhaust pipe. It will stay white – a far cry
from the days of black diesel clouds wafting
from the exhaust.
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BMW BluePerformance is greening diesel power.
