23 THROTTLE VALVE BODY
23.1
A
23.2
256
Adjusting the idle s�eed
Danger
Danger of poisoning
death.
Exhaust gases are toxic and inhaling them may result in unconsciousness and
- 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.
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.
- Run the engine until warm.
✓ The cold start button is deactivated - The cold start but
ton is in its basic position.
120311-10
- Set the idle speed by turning the idle speed adjusting
screw
O.
Guideline
I Idle speed
I 2,250 ... 2,350 rpm
I Tachometer (45129075000) (
a
p. 285)
•
Info
I
Turning counterclockwise lowers the idle speed.
Turning clockwise raises the idle speed.
..
Executin the initialization run
Condition
The diagnostic tool is connected and running.
- Execute
"Engine electronics"
>
"Functions"
>
"Deleting
adaptation values".
✓ The adaptation values are deleted.
- Select
"Engine electronics"
>
"Measured values"
>
"Engine coolant temperature sensor (TW1)".
✓ The coolant temperature is displayed during the initializa
tion run.