With Manufacturer's Scan Tool

Idle Speed, Adaptation

In exceptional circumstances (e.g. customer complaints concerning droning noises and vibrations at idle speeds) it is OK to adjust the idle speed slightly.

Special tools and equipment
VAG1551 Scan Tool (ST) or VAG1552 mobile scan tool with VAG1551/3 adapter cable

Test requirements
- No DTCs stored in DTC memory. Reading Diagnostic Trouble Codes
- Engine coolant temperature at least 85°C See display group 004, display field 3.

Test sequence
- Connect VAG1551 (VAG1552) Scan Tool (ST). [1][2]Reading and Clearing Diagnostic Trouble Codes
- Switch ignition on and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (when doing this engine must be running at idle).

Indicated on display

Rapid data transfer HELP
Select function XX

- Press buttons -1- and -1- to select "Login-Procedure" function 11 and press -Q- button to confirm input.

Indicated on display

Login procedure
Input code number XXXXX

- Press buttons -0-, -1-, -2-, -8- and -3- to select Login code 01283 and press -Q- button to confirm input.

Indicated on display

Data transfer fault

- Switch ignition off and repeat procedure.

Indicated on display

Rapid data transfer HELP
function XX

- Press buttons -1- and -0- to select "Adaptation" function 10 and press -Q- button to confirm input.

Indicated on display

Adaptation
Insert channel number XX

- Press buttons -0- and -1- for channel number 1 and press -Q- button to confirm input.

Indicated on display

Channel 1 Adaptation xxx ->
xxx RPM xxx RPM text text

- Change specified speed in display field 2 in jumps of 10 RPM using following buttons:
- VAG1551: buttons 1 and 3
- VAG1552: buttons uparrow and downarrow

Indicated on display

channel 1 Adaptation xxx ->
xxx RPM xxx RPM text text

NOTE: The idle speed must not be adjusted to outside the permissible idle speed range.

- Press -Q- button to confirm input.

Indicated on display

Channel 1 Adaptation xxx Q
Store changed value?

- Press -Q- button to confirm input.

Indicated on display

Channel 1 Adaptation xxx ->
Changed value is stored

- End adaptation by pressing -> button.
- Press buttons -0- and -6- to select End Output" function 06 and press -Q- button to confirm input.
- Switch ignition off.