199001822 - D006 ENGINE SHUDDERS (Robotized gearbox)

It judders when moving off from a standstill, it judders during a gear change.

Preliminary check: If the vehicle has faults in other systems (warning lights lit on the instrument panel relating to: engine management, ABS, ESP… ) check the causes of these problems. Otherwise continue with the following sheet

		Test results
1	ERRORS IN AUTOMATED GEARBOX CONTROL UNIT CHECK	All OK	Problems encountered	Operation
	Check that there are no errors in the automated gearbox control unit. More specifically:- Clutch position sensor.- CAN network errors	Move on to Step 3	One or more errors on the list are present.	Move on to Step 2
2	CHECKS ON FAULTS ENCOUNTERED	All OK	Problems encountered	Operation
	Check the faults, carrying out    See Test 2127OI WHAT TO DO DEPENDING ON THE ERROR PRESENT IN THE ROBOTIZED GEARBOX CONTROL UNIT	End of diagnosis	Fault at the connections	Restore/replace the wiring    See E7051 ROBOTIZED GEARBOX
			One of the control units does not dialogue (CAN network errors)	Restore/replace the control unit involved.
3	FLUID LEVEL CHECK	All OK	Problems encountered	Operation
	Check the fluid level, carrying out    See Test 2127OB FLUID LEVEL CHECK	Move on to Step 5	Level lower than Max mark	Top up and move on to Step 4
			Level above Max mark	Bring to Max level and move on to step 5
4	FLUID LEAKS CHECK	All OK	Problems encountered	Operation
	Check there are no fluid leaks, carrying out    See Test 2127OC FLUID LEAKS CHECK	Move on to Step 5	Fluid leaks detected.	Repair/replace the parts involved, top up the fluid.
5	FLUID PRESSURE CHECK	All OK	Problems encountered	Operation
	Check the fluid pressure, carrying out    See Test 2127OD FLUID PRESSURE CHECK	Move on to Step 8	Pressure < 40 bar	Move on to Step 6
6	PRESSURE SENSOR CHECK	All OK	Problems encountered	Operation
	Check that the sensor is working properly, carrying out    See T OIL PRESSURE SENSOR OPERATION CHECK	Move on to Step 8	Pressure sensor not working	Replace the sensor    Op. 2127E50 HYDRAULIC SELECTION GEARBOX CIRCUIT PRESSURE SENSOR - R.R.
7	ELECTRIC PUMP OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the electric pump is working properly by carrying out    See Test 2127OE ELECTRIC PUMP OPERATION CHECK	Move on to Step 8	Voltage less than 11 V	Restore correct battery voltage.
			It is not possible to shift gears using the lever.	Activate the "bleed clutch" function from Examiner Plus or Smart to activate the electric pump and move on to step 8
8	CARRY OUT SYSTEM BLEED WITH AN EXAMINER	All OK	Problems encountered	Operation
	In active diagnosis, carry out two system bleed cycles using the bleed clutch command	Move on to Step 9
9	CARRY OUT THE CALIBRATION OF CLUTCH PARAMETERS WITH AN EXAMINER	All OK	Problems encountered	Operation
	In active diagnosis, carry out the calibration of clutch parameters using clutch self-calibration enablement	Move on to Step 10
10	ROAD TEST	All OK	Problems encountered	Operation
	Check that the fault is no longer present with a road test.	End of diagnosis	The fault persists.	Move on to Step 11
11	CLUTCH SENSOR WIRING LAYOUT CHECK	All OK	Problems encountered	Operation
	Check the condition of the connections, the continuity of the wiring (it is important to pay particular attention to the clutch position sensor wiring layout in the engine compartment: the cable should not be too tight, it must have sufficient clearance)	Move on to Step 12	A fault is detected.	Restore/replace the part that is not working.
12	CHECK CORRECT OPERATION	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Contact technical service for further information on the problem.