Audi car engines: A3, A4, A6, A8, Q7 and many more...
has demonstrated impressive design superiority in both the spark-ignition and turbocharged
direct-injection diesel areas. These Audi engines eliminate in a highly convincing
manner the supposed conflict of objectives between economy and a supreme flow of
power. Audi's engines satisfy the very highest standards on all their models
A3, A4, A6, A8, Q7, Quattro and more. Audi car engines
can be found on this site, reconditioned or secondhand. See also
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From blank to finished components.
To ensure that all the principal components of an engine satisfy Audi's high quality
standards, the engine blocks, camshafts, crankshafts and conrods are subjected to
a series of complex high-precision machining operations as they pass through the
Audi production plant.
Find helpful engines information on more Audi models:
Audi A2 Engine
Audi A3 Engine
Audi A4 Engine
Audi A8 Engine
Audi Q7 Engine
Conrods. The "big end
bore" not only has to be machined to the necessary standard of precision, but
also opened up into two halves. This used to be done with a saw - a time-consuming
method that called for precision guidance and careful machining of the cut surfaces.
Today the conrods are simply snapped in half at a predetermined point. This "cracking"
technique yields surfaces, which later fit together precisely, for a far more effective
joint and greater lateral rigidity.
Crankshafts. Every stage in
crankshaft machining takes place on ultra-modern plant with the latest control systems.
A patented process enables the main and big-end bearing journals to be hardened
simultaneously with the more critical machined surfaces. Keeping the consumption
of process materials to a minimum is a basic requirement in this, as in other areas
of the production plant. Endurance-testing an Audi engine continues even when the
exhaust manifold begins to glow red-hot.
A passenger-car world
premiere: Audi's five-valve engines. (RS4, R8, S2, S3, S4, S6, S8,
Economy and performance, with no compromises either way - this is what
the five-valve engines introduced for the Audi A4 can justly claim. They are available
with a power output of 92 kW (125 bhp) and in turbocharged form with 110 kW (150
bhp). Their high, flat torque characteristic permits the driver to move up quickly
through the gears and achieve economical results at the same time. The three inlets
and two exhaust valves per cylinder speed up the gas flow and make the engine more
dynamic despite its modest swept volume. These four-cylinder engines are not produced
on a moving assembly line. The engine conveyor is divided into three sections with
buffer zones between them. In this way, the assembly teams can work on each engine
at the speed which suits them best. The engine production area is organized without
undue hierarchical steps: there are only two decision-taking levels between the
assembly teams and departmental management.
Tested through and through.
Even during engine assembly, intermediate inspections are performed on parts with
an important operating function: to detect and eliminate any tendency for tolerances
to exceed the close permitted limits. The complete engine will cover quite some
distance on a running-in test rig before it is ever installed in a car: about five
minutes under its own power, during which time the coolant and oil temperatures
are checked to ensure that no overheating can occur. Further functional check includes
ignition timing, and an examination for leaks.
Compact power packages: the six cylinder engines.
Audi's 2.6 and 2.8 liter V6 engines are the lightest in their class at only approximately
160 kilograms, and also the shortest at only 45 centimeters. They cover a power-output
range from 150 bhp to 200 bhp. Design elements such as multiple valves per cylinder,
variable camshaft control and variable intake pipe length boost power output and
torque, and at the same time reduce the exhaust emissions from these Audi engines.
A powerful heartbeat for Neckarsulm: the V8 engine.
The magnificent power source for the Audi A8 and S6 models are the lightest, most
compact and most powerful V8 engine in its class. This engine calls for precision
assembly standards and uses materials and manufacturing technologies of the very
highest quality. The V8 engine produced in two displacements: the 4.2-liter version
develops up to 360 bhp according to version, the 3.7-liter engine 260 bhp.