S6 V8-4.2L (BBD) (2004)
Idle Speed: Testing and Inspection
With Manufacturer's Scan Tool
Idling speed, checking
Test conditions
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No leaks in exhaust system
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Coolant temperature at least 85 degrees C.
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Electrical consumers switched off (radiator fan must not run during the check)
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Air conditioner switched off
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Pressure gauge not connected
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Place selector lever in P or N position (vehicles with automatic transmission)
Checking idling speed
NOTE:
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The idling speed cannot be adjusted.
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The idling speed is tested during the basic setting of the engine.
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During the basic setting of the engine, the air conditioner compressor is automatically switched off and the EVAP canister purge regulator valve is
closed.
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Check Diagnostic Trouble Code (DTC) memory. DTC memory must be clear. If necessary, correct any malfunctions and erase DTC memory.
-
Switch engine off, then start up again. Perform road test and check DTC memory again to make sure it is clear.
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Start engine and run at idling speed.
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Switch off air conditioner.
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Switch off rear window defroster.
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Position selector lever in P or N position (vehicles with automatic transmission).
CAUTION: The electric radiator fan should not be running.
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press keys 0 and 4 for function "Introduction of basic setting" and confirm entry with Q key.
Indicated on display
Basic setting
Enter display group number XXX
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Press keys 0, 5 and 6 for "display group number 56" and confirm entry with Q key.
NOTE:
Indicated on display: (1...4 display zones)
System in basic setting 56
->
1
2
3
4
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Check whether engine speed in display zone 1 (actual speed) is within permitted tolerance range (670 rpm to 850 rpm).