Jan 312018
 

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, VDC…) 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 P2 – Oil level check
Go to
step 1
Level
other than max
Do
P3 – Oil leaks check
1 Check
oil pressure
All OK Problems found Intervention
Check
oil pressure als shown in
P4 – Oil pressure check
Go to
step 2
Press <
40 bar
Do

P5 – Electric pump operation check
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

P17 – What to do according to the error on the Selespeed control unit
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

 

 Posted by at 7:38 pm