Originally Posted by asellus

Gods I love song-and-dance threads where people clearly have no clue what's actually going on. Reminds me of the "PDK Reset" procedure.

@askhangura replacing the throttle body is, actually, one of the actual reasons for doing this! Ignore OP's "it gets sluggish over time" commentary.


tl;dr of below: make sure it's between 55 and 80 degrees Fahrenheit outside, turn on the ignition but not the engine and don't touch anything for 30 seconds. Turn off ignition. You're done.


Per the FSM though, here you go:

OVERWRITING ADAPTATION VALUES (WITHOUT DELETION) > THROTTLE VALVE

Necessary after:
Re-programming DME control unit
Replacing DME control unit
Replacing throttle valve

Information
Consequences of Tester adaptation if conditions for automatic adaptation are not met (violated boundary condition):
- For a fault entry in the load detection range (P0068 + P1069... P1077), the limits are extended in order to prevent incorrect detections.
- This extension is cancelled if an adaptation is performed when the conditions for automatic adaptation are met, or after 15 warm-up cycles at the latest.
- (Warm-up cycle = coolant temperature increases by more than 23 °C after start-up and reaches at least 73 ° C)
- Following manual throttle valve adaptation when ambient conditions are not met, throttle valve adaptation is carried out again automatically as soon as the ambient conditions are met.
- There is NO 30-second waiting time here, but a slightly delayed engine start is possible once.

The ambient conditions for automatic adaptation are as follows:
- Engine off and ignition on for > 30 seconds
- Accelerator pedal not pressed
- Vehicle is stationary
- Power supply for throttle valve adjusting unit is OK
- Coolant temperature 5 °C... 100 °C
- Intake air temperature 5 °C... 30 °C

How?