A8L V8-4.2L (BFM) (2004)
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Variable Valve Timing Solenoid: Testing and Inspection
Camshaft timing control system, checking
Special tools and workshop equipment required
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VAS 5051 and VAS 5051/1
Requirements
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Coolant temperature at least 80 ° C
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Vehicles with automatic transmission: selector lever in position P or N
Work sequence
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Connect vehicle diagnostic, testing and information system VAS 5051 and select vehicle system "01 - Engine electronics" from menu. Engine
should be idling.
WARNING:
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Test equipment must always be secured on the rear seat and operated from the rear seat by a second person.
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If test equipment is operated from the front passenger seat, the occupant could be injured by the passenger's airbag in an accident.
Display on VAS 5051:
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Select diagnosis function "04 - Basic settings" from menu -1-.
Display on VAS 5051:
1 - Enter display group
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Using keypad -2-, enter "094" to select Display group 094 and confirm entry with Q button.
