Camshaft Adjustment Function, Checking

Camshaft Adjustment Function, Checking

- Connect VAG1551/1552 Scan Tool (ST) and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (engine running at idle). Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAG 1551/1552 Scan Tool" Testing and Inspection

Indicated on display


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -8- to select "Read Measuring Value Block" function 08, and press -Q- button to confirm input.

Indicated on display


Read Measuring Value Block HELP
Input display group number XXX


- Press buttons -0-, -9- and -0- to input display group number 90 (090), and press -Q- button to confirm input.

Indicated on display (1-4 = display groups)


Read Measuring Value Block 90 ->
1 2 3 4


NOTES:
Display field 2 indicates whether the engine control module has activated the camshaft adjustment.
- "CS-ctrlOFF:" camshaft adjustment is not active.
- "CS-ctrlON:" camshaft adjustment is active (this can only be attained during a test drive)
Display fields 3 and 4 show whether the camshaft adjustment did actually occur (via input from sensors):
- Normal Position: -3.0° to 6.0° KW.
- Shifted position: 16.0° KW to 25.0° KW.


NOTE: If, during the test drive, display field 3 and/or 4 displays a value between 6.0 ° KW and 16.0 ° KW, the electrical valves for camshaft adjustment have switched the oil pressure to the respective mechanical camshaft adjuster, but it cannot attach the collect end position (e.g. due to sluggishness).


WARNING!
A second technician is required to operate the VAG1551 scan tool during the road test.


- Accelerate from rest in 1st gear (manual) or with selector lever in "2" position (automatic).
- Check specified values for camshaft adjustment (display fields 2-4)

Display Group 90:

If specified values are attained:
- Press -> button.
- Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.