Engine46 | Dynamics
Direct fuel injection (DFI).
With millisecond precision, DFI injects
fuel at up to 200 bar directly into the
combustion chamber by means of
electromagnetically actuated injection
valves. The spray and cone angles have
been optimised for torque, power output,
fuel consumption and emissions by
enabling a homogeneous distribution of
the air/fuel mixture and, therefore,
effective combustion. DFI improves the
internal cooling of the combustion
chamber by having the mixture prepared
directly in the cylinder. This allows for a
higher compression ratio, which helps to
deliver greater power output at the same
time as enhanced engine efficiency.
Common-rail diesel injection system.
In the Macan S Diesel, fuel is directly
injected by a common-rail injection
system. The injection pressure of up to
2,000 bar ensures effective mixture
formation and enhanced dynamic
performance. Piezo-controlled injectors
enable a flexible injection process with multiple injections taking place per
stroke and delivering fuel in the exact
amounts required for smooth
combustion.
Thermal management.
Engine cooling is prevented during the
initial stages of a cold start so that the
engine reaches its optimum operating
temperature faster. This means it can
begin working at high efficiency sooner,
thereby consuming less fuel.
Active aerodynamics.
The radiator grille shut ter opens the
cooling air flaps only as needed.
Whenever the cooling requirement is low,
such as on relaxed drives, the radiator
grille shut ter closes. Aerodynamics are
improved, which helps to improve fuel
economy. If, for example, a sport y
driving st yle is adopted and the demand
for power increases, the cooling air flaps
will open and let in the necessary amount
of cooling air for increased driving
performance.
O il supp ly.
The integrated dry-sump lubrication of the
V6 petrol engines guarantees a reliable
supply of oil in all driving situations. The
oil reservoir is located directly inside the
engine, which saves on space and weight.
An electronically controlled oil pump
provides the correct amount of oil as and
when needed. Optimised for sport y
driving, it ensures optimum engine
lubrication even in extreme situations.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 126–127.
Environment70 | Instinct
Fuel system.
In the petrol models, even the emissions
of the fuel system itself are minimised
for the protection of the environment.
Evaporative emissions are significantly
reduced by the returnless supply system.
Vapour-carrying lines are made from
multi-layered plastic, while a high- capacit y
active carbon filter and the fuel tank also
feature a multi-layered construction in
order to make every thing as impermeable
as possible.
Noise reduction.
The characteristic Porsche sound may
drive our passion, but acoustics is yet
another area in which we continuously
strive for optimisation.
Stiff components and light weight,
temperature-stable materials minimise
play bet ween parts and therefore
mechanical noise. Voluminous silencers
and air induction systems reduce noise
levels further – and that ’s over the
course of the entire service life. In collaboration with t yre manufacturers,
we are managing to reduce the rolling
noise of t yres, while aerodynamic
refinements keep wind noise as low as
possible. What ’s left? The Porsche sound,
pure and simple.
Servicing.
Long-life and hard-wearing materials
reduce maintenance items to a minimum.
At the time of an oil filter change, for
example, only the recycling-friendly
paper insert needs to be exchanged and
not the entire housing.
Moving parts are adjusted automatically,
e.g. by hydraulic valve clearance
compensation.
The use of individual ignition coils in
petrol engines makes the entire ignition
system, except for the spark plugs, wear-
and maintenance-free. Advantage for
you? If it doesn’t need replacing, it
doesn’t need to be disposed of. Not only
does this support the responsible
handling of resources and a caring
at titude towards the environment, it
saves you time and money.
The maintenance intervals of the Macan
models nevertheless depend on various
factors, including the local fuel grade.
For exact information, please refer to the
price list published in your country or
consult your Porsche Centre.
Materials and recycling.
A Porsche is a source of long-lasting
pleasure for our customers and a
refreshing change for their environment.
This Porsche principle can be summed
up in one word: sustainability.
Here’s just one example: the exhaust
system of the Macan models is made
from extremely corrosion-resistant
stainless steel – and purposefully
manufactured on the principles of
lightweight construction. In addition, our cars are free from CFCs and parts
manufactured with the use of CFCs. In
all, they are over 95
% recoverable.
Naturally, all statutory recycling
requirements are fulfilled. The labelling of
materials facilitates future sorting for
excellent recycling.
On the subject of recycling, there is
plent y of time before it is even needed.
Two -thirds of all Porsche cars ever built
are still being driven today. What bet ter
way to conserve resources?
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 126–127.
