4
Introduction
Technical features
Development of the two V8 engines focussed
primarily on the following development objectives:
- Compliance with future emission regulations
- Reducing fuel consumption
- Increasing torque and output
- Reducing the weight of the engine
- Improving operating comfort
- Off-road capability in the case of the Touareg
Engine mechanical system
- V8 cylinder block
- Cylinder head with 5-valve technology and
roller rocker fingers
- Inlet camshaft adjustment
- Two-stage variable intake manifold in the Phaeton
- Three-stage variable intake manifold in the
Touareg
- Oil filter module
- Twin-branch intake system
Engine management system
- Bosch Motronic ME 7.1.1
- Sequential fuel injection
- Electronic ignition
- Two hot film air mass sensors
- Secondary air system
- One knock sensor per cylinder bank
- Two primary catalytic converter broadband
lambda probes
- Two transient lambda probes after the catalytic
converter
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