A8 Quattro Sedan V8-4.2L (BVJ) (2008)
‹› Check using the hand vacuum pump (VAS 6213).
4
Intake Manifold Tuning (IMT) Valve (N156)
5
Intake Manifold Change Over Valve Vacuum Actuator
‹› Check using the hand vacuum pump (VAS 6213).
6
Intake Manifold Runner Control (IMRC) Valve (N316)
‹› To remove and install, remove the intake manifold.
7
to Vacuum Reservoir
‹› Component location: Under the intake manifold.
‹› To remove and install, remove the intake manifold.
8
to Vacuum Reservoir
Upper Intake Manifold
1
Intake Manifold Change Over Valve Vacuum Diaphragm
2
Intake Manifold Tuning (IMT) Valve (N156)
3
Intake Flap Vacuum Diaphragm (Cylinder Bank 1)
‹› for cylinder bank 1 CVTS tumble flaps.