Work sequence
- Connect vehicle diagnostic, testing and information system VAS 5051. See VEHICLE DIAGNOSTIC, TESTING AND INFORMATION SYSTEM VAS 5051, CONNECTING AND SELECTING FUNCTIONS and select vehicle system "01 - Engine electronics" from list. Engine must be idling.
Indicated on VAS 5051:
- From list -1- select diagnostic function "08 - Reading measured value block".
Indicated on VAS 5051:
1 - Enter display group
- Use keypad -2- to enter "014" for "Display group number 014" and confirm by touching Q key.
Indicated on VAS 5051:
- Check display in zones -3- and -4-.DISPLAY GROUP 014: MISFIRING RECOGNITION
Display zones 1 2 3 4 Display group 014: Misfiring recognition Display xxx RPM xxx % xxx --- Significance Engine speed Load Total misfiring Misfiring recognition Operating range Activated
DisabledSpecification xxxx RPM 12...26 % 0 Activated Note If reading exceeds specification: Check misfiring of individual cylinders . See CHECKING MISFIRING RECOGNITION OF INDIVIDUAL CYLINDERS If operation is likely to induce misfiring (e.g. warm-up, overrun shut-off), misfiring recognition function is disabled
If reading matches specification:
- Terminate function "08 - Reading measured value block" by touching <--key.
If reading does not match specification:
- Touch s key to switch to display group 015.