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Engine - Mechanics
Camshaft adjuster
(cylinder bank 1)
In the case of the new V8 engines, an
interlock function and an oil reservoir were
added to the proven system during the
course of further development.
These new features prevent vibrations in the
chain drive which has a positive effect on
acoustic behaviour during the start phase.
The camshaft adjustment system, a feature
incorporated in Audi's current range of
engines, is also used in the new generation of
V8-5V engines.
When the engine is switched off, no oil
pressure is applied to the chain tensioner and
camshaft adjuster.
Owing to the Ferraria effect in the chain drive
when the engine is started, vibrations which
generate noise occur until sufficient oil
pressure has built up.
SSP217_026
Chain tensioner slide pad
Locking pins for
starting phase
Slide pad adjuster
Camshaft adjustment
valve N205
Hydraulic cylinder with
switching piston
The principle of camshaft
adjustment is described in SSP 182.
Oil reservoir
Tensioning piston
Adjuster piston
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