2751016 - C27 THE ENGINE REVS INCREASE WHILST CHANGING GEAR

The problem disappears if I release the accelerator pedal when changing The clutch appears to be slipping and there is a smell of burning every so often
Results of the tests
0CONTROL UNIT ERRORS CHECKAll OKProblems metOperation

Check that there are no control unit errors. In particular:

  • CAN error (NCR-NCM)
Continue to Step 3Presence of error indicated Continue to Step 1
1CHECKS ON FAULTS DETECTEDAll OKProblems metOperation
Check the faults according to the See Test   2127I  What to do for error in Selespeed control unit End of diagnosisFaulty connections Repair/replace the wiringContinue to Step 2
One of the control units does not dialogue Repair/replace the control unit concernedContinue to Step 2
2AFTER THE CHECKS ON THE FAULTS DETECTEDAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persists Continue to Step 3
3CARRY OUT CLUTCH PARAMETER CALIBRATION USING THE EXAMINERAll OKProblems metOperation
In active diagnosis carry out the calibration of the clutch parameters through the 'clutch self-calibration enablement' and 'calculation of the clutch degradation index'Continue to Step 4.
4CHECK WITH ROAD TESTAll OKProblems metOperation
Carry out a road test making sure to carry out as many gear changes as possible with all the available gears (under different engine rpm and load conditions).Check that the fault has disappearedEnd of diagnosisThe fault persists Continue to Step 5
5CLUTCH PLATE CHECKAll OKProblems metOperation
Check the clutch disc: it must conform and must not be wornContinue to Step 7The clutch disc is worn/does not conform Replace the clutch plate Op.   1810A24  Continue to Step 6
6VEHICLE OPERATIONAL CHECKAll OKProblems metOperation
Carry out another road test and check that the fault has disappearedEnd of diagnosisThe fault persists Continue to Step 7
7THE FAULT PERSISTSAll OKProblems metOperation
Contact Technical Service for further information on the problem End of diagnosis.