Alfa Romeo Selespeed system
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FAULTS and TROBLESHOOTINGS

 

The car jerks

   
 
Symptom/conditions: The car jerks
  • * It jerks from a standing start
  • * It jerks when changing gear

 

 

Preliminary check
If there are other system faults on the vehicle ( instrument panel warning lights on referring to : engine control, ABS, VDCÖ. ) check the cause of these problems. If this is not the case, proceed with this chart.

 

 
Step Operations Test results
 
0 Check oil level All OK Problems found Intervention
 
  Check oil level als shown in Procedure 2 Go to step 1 Level other than max Do Procedure 3
 
1 Check oil pressure All OK Problems found Intervention
 
  Check oil pressure als shown in Procedure 4 Go to step 2 Press < 40 bar Do Procedure 5
 
2 Check errors All OK Problems found Intervention
 
  Check ECU for absence of errors. Specifically check for:
* Clutch position sensor
* Errors CAN messages (reception/transmission)
Go to step 4 Presence of one or more errors included in the list Go to step 3
 
3 Check problems found All OK Problems found Intervention
 
  Check problems according Procedure 17 End of procedure The problem persists Go to step 4
 
4 Bleed the system with Examiner All OK Problems found Intervention
 
  In active diagnosis run two system bleeding cycles through the "clutch bleeding" command     Go to step 5
 
5 Clutch parameters calibration with Examiner All OK Problems found Intervention
 
  With examiner in active diagnosis, run the calibration of the clutch parameters through " enable clutch self-calibration ".     Go to step 6
 
6 Road test All OK Problems found Intervention
 
  Check that the fault is no longer present by testing on the road End of procedure The problem persists Go to step 6
 
7 The problem persists All OK Problems found Intervention
 
  Check that the problem is not caused by other systems such as the engine, fuel supply ÖÖ. Go to step 8 There are faults on other car systems. See the specific charts
 
8 The problem persists All OK Problems found Intervention
 
        Contact technical assistance for additional information on the problem