25.2
25 THROTTLE VALVE BODY
Adjusting the idle s�eed
Warning
Danger of accidents
The engine may go out spontaneously if the idle speed is set too low.
Set the idle speed to the specified value.
Danger
Danger of poisoning
Exhaust gases are toxic and
inhaling them may result in unconsciousness and
death.
Always make sure there is sufficient ventilation
when running the engine.
Use an effective exhaust extraction system when
starting or running the engine in an enclosed
space.
Run the engine warm and push idle speed adjusting
screw
O
all the way in.
Set the idle speed by turning the idle speed adjusting screw.
Guideline
I
Idle speed
I
2,050 ... 2,150 rpm
Executing the initialization run
Condition
Info
Turn counterclockwise to increase the idle speed.
Turn clockwise to decrease the idle speed.
The diagnostics tool is connected and running.
Execute
"Engine electronics"> "Functions"> "Delete
adaptation values".
✓ The adaptation values are deleted.
Select
"Engine electronics"> "Measured values">
"Coolant temperature sensor (TW1
)".
..
✓ The coolant temperature is displayed during the initializa
tion run.
Danger
Danger of poisoning
Exhaust gases are toxic and
inhaling them may result in unconsciousness and
death.
Always make sure there is sufficient ventilation
when running the engine.
Use an effective exhaust extraction system when
starting or running the engine in an enclosed
space.
253