Operation CHARM: Car repair manuals for everyone.

CO Adjustment



On vehicles without catalytic converters, this function can be used for setting the CO value at idle. For CO setting, the following conditions must be met:
- engine at idle
- cylinder head temperature > 100°C
- DME - engine control module coded for controlled operation

After this menu item has been selected, the following display appears:

Note:
CO adjustment is
only possible on
vehicles w/o cat. conv. >.

Press the > key to switch to the CO adjustment display.

CO adjustment
+ -
< xxx >
return: N.

NOTE:
- The number displayed has nothing to do with the CO content. The CO content must be measured using an emissions tester.
- If the CO content at idle is too low, press the > key until the correct value is obtained. If it is too high, press the < key. The value displayed by the system tester rises or falls by 1 each time the key is pressed.