Camshaft adjustment (intake), checking

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Diagnostic System VAS 5051: Display - Display Fields

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Indicated on display of VAS 5051:

Press s button to change into display group 091.

Requirement

Engine running at idle.

Check specified values in display fields -3- and -4-.

	Display fields
	1	2	3	4
Display group 091: Camshaft adjustment (intake), Bank 1
Display	xxxx/min	%	°Crankshaft rotation	°Crankshaft rotation
Display	Engine speed	Duty cycle	Specified adjustment	Current adjustment
Specification	Idle	15 to 17	-3 to 3	-3 to 3

Perform a road test.
Accelerate vehicle in 3rd gear at wide open throttle from 2000 RPM.
Check specified values in display fields -3- and -4-.

	Display fields
	1	2	3	4
Display group 091: Camshaft adjustment (intake), Bank 1
Display	xxxx/min	%	°Crankshaft rotation	°Crankshaft rotation
Display	Engine speed	Duty cycle	Specified adjustment	Current adjustment
Specification		60 to 100	39 to 45	39 to 45
Note			If specified value is not obtained: Check valve for camshaft adjustment (intake) bank 1. Refer to Solenoid valve for camshaft adjustment, checking

NOTE: If display field only indicates a value between 3.0°crankshaft rotation and 39.0° crankshaft rotation during a road test, the electrical valve for camshaft adjustment is correctly switching the oil pressure to mechanical camshaft adjuster, but the mechanical camshaft adjuster cannot reach its end position (e.g. due to difficulty of movement).

Fig 2: Diagnostic System VAS 5051: Display - Display Fields

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Indicated on display of VAS 5051:

Press s button to change into display group 092.

Requirement

Engine running at idle.

Check specified values in display fields -3- and -4-.

	Display fields
	1	2	3	4
Display group 092: Camshaft adjustment (intake), bank 2
Display	xxxx/min	%	°Crankshaft rotation	°Crankshaft rotation
Display	Engine speed	Duty cycle	Specified adjustment	Current adjustment
Specification	Idle	15 to 17	-3 to 3	-3 to 3

Perform a road test.
Accelerate vehicle in 3rd gear at wide open throttle from 2000 RPM.
Check specified values in display fields -3- and -4-.

	Display fields
	1	2	3	4
Display group 092: Camshaft adjustment (intake), bank 2
Display	xxxx/min	%	°Crankshaft rotation	°Crankshaft rotation
Display	Engine speed	Duty cycle	Specified adjustment	Current adjustment
Specification		60 to 100	39 to 45	39 to 45
Note			If specified value is not obtained: Check valve for camshaft adjustment (intake) bank 2. Refer to Solenoid valve for camshaft adjustment, checking

NOTE: If display field only indicates a value between 3.0° crankshaft rotation and 39.0° crankshaft rotation during a road test, the electrical valve for camshaft adjustment is correctly switching the oil pressure to mechanical camshaft adjuster, but the mechanical camshaft adjuster cannot reach its end position (e.g. due to difficulty of movement).