With Manufacturer's Scan Tool

Idling Speed, Adapting
In exceptional circumstances e.g. customer complaints concerning droning noises, vibrations at idling speed, it is permitted to adjust the idling speed slightly. But ensure that the idling speed is not outside the specified idling range. (If the speed is outside the tolerance range it is possible that the vehicle will fail the next exhaust emissions test.)

Special tools and equipment
- V.A.G1551 scan tool or V.A.G1552 mobile scan tool with V.A.G1551/3B cable Adaption

Test conditions
- No code stored in DTC memory
- Coolant temperature must be at least 80 degrees C, see display group 04, display zone 3.

Work sequence
- Connect V.A.G1551 scan tool (V.A.G1552). Start engine and select "Address word" 01 of engine control module. Engine must be running at idling speed. (Connecting scan tool and selecting engine control module.)

Indicated on display:

Rapid data transfer HELP
Select function XX

- Press keys 1 and 0 for "Adaptation" function and confirm input with Q key.

Indicated on display:

Adaption feed in channel number xx

- Press keys 0 and 1 for channel number 1 and confirm input with Q key.

Indicated on display:

Channel 1 Adaption xxx
xxx RPM xxx RPM Text Text

- Change specified speed in display zone 2 in jumps of 10 RPM with following keys:
V.A.G1551: keys 1 and 3
V.A.G1552: keys and

Indicated on display:

Channel 1 Adaption xxx
xxx RPM xxx RPM Text Text

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

- Confirm input by pressing Q key.

Indicated on display:

Channel 1 Adaption
xxx Q Store amended figure?

- Confirm entry by pressing Qkey.

Indicated on display:

Channel 1 Adaption xxx
Amended figure is stored

- Conclude adaptation by pressing -> button.
- Press keys 0 and 6 for "End data transfer" function and confirm input with Q key.
- Switch ignition off.