A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Camshaft: Testing and Inspection
Camshaft Adjustment, Checking
Camshaft Adjustment, Checking
The adjustment of the intake camshaft is load and RPM dependent. Oil pressure is switched to the respective camshaft adjuster (mechanical
adjustment devices) via the solenoid valve for the camshaft adjustment.
‹› Camshaft adjustment is active only 25 seconds after engine start.
Special tools, testers and auxiliary items required
‹› Vehicle diagnosis, testing and information system (VAS 5051) with (VAS 5051/1)
Test Conditions
‹› Coolant temperature at least 80° C (176° F).
‹› Vehicles with automatic transmission: Selector lever in the "P" or "N" position.
Test Sequence
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Connect the (VAS 5051) and select vehicle system "01 - engine electronics". Engine must run at idle for this.
CAUTION!
‹› Test and measuring equipment must always be secured to the rear seat and be operated from there by a second person.
‹› If test and measuring instruments are operated from the front passenger seat and the vehicle is involved in an accident, there is a
possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.
Display on (VAS 5051):
-
In selection - 1 -, press diagnostic function "04- Basic Setting".
Display on (VAS 5051):
