Hi, My 4C has 70.000 Km and I experience the same problems now. I am using the Multiscan 4.7R3 tool and did all Adjustements. In the Production/Service final calibration procedure, all elektrovalves, potentiometers and mechanical components of the whole actuation unit, are tested. So, in your case, it would also test the integrated sensor module. So my suggestion is to run this test and than do the clutch self-calibration enable. In my case I first got the error code related to the electropump of the power unit. I changed the electropump,the accumulator and the elektronic control unit of the elektropump, but without any succes. During a trip in the Italian mountains, I got the same problem. Now I am going to replace the clutch, because with 70K and at least 50% driving in the mountains, I think the best is gon and the clutch is worn.
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The position sensors are together in a module that is part of the robot. This module is not available separately. The chance of these breaking is also very small, but it may be that they are soiled with small metal particles that come out of the gearbox. The robot is fairly easy to disassemble.
The sensors themselves can be tested, with the Multiecuscan it is possible to operate the robot and test all gears without the motor running. The position sensor of the clutch or the position sensor of the shifter can also be a cause here.
The entire system is also tested during a recalibration of the robot / gearbox. So I would do these tests first.
I would certainly change the oil of the gearbox and definitely the oil and filter of the robot (after cleaning the sensors)
The pictures show you the sensor module disassembled and the robot with the module mounted.
What you should also do is check the electrical wiring and treat the connectors on the robot and the TCU with a good contact spray.
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The sensors themselves can be tested, with the Multiecuscan it is possible to operate the robot and test all gears without the motor running. The position sensor of the clutch or the position sensor of the shifter can also be a cause here.
The entire system is also tested during a recalibration of the robot / gearbox. So I would do these tests first.
I would certainly change the oil of the gearbox and definitely the oil and filter of the robot (after cleaning the sensors)
The pictures show you the sensor module disassembled and the robot with the module mounted.
What you should also do is check the electrical wiring and treat the connectors on the robot and the TCU with a good contact spray.
OK, Whil monitoring the pressure, shift gears with pannel bottons, from N to 1 to N to R to 1, a couple of times. The pressure should stay between 44 and 54 bar. If that is OK that means that the power unit is ok.
you probably will have to change the robot unit but first I would try to change the oil of the hydraulic unit.
So, depressure the accumulator power unit with the procedure from the Multiecuscan.
Than remove the filter from the robot and flush the oil. Change the filter and put new oil.
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Follow the complete prosedure as descibed above
in the folowing order: delete statistical data, than clutch drain 3 times, clutch replacement, electropump replacement, actuator base adjustment, production service final calibration and finaly clutch self calibration enable. If that is not solving the issue, you have to change the complete robot unit. (since there are no single spare parts available....)
you probably will have to change the robot unit but first I would try to change the oil of the hydraulic unit.
So, depressure the accumulator power unit with the procedure from the Multiecuscan.
Than remove the filter from the robot and flush the oil. Change the filter and put new oil.
Follow the complete prosedure as descibed above
in the folowing order: delete statistical data, than clutch drain 3 times, clutch replacement, electropump replacement, actuator base adjustment, production service final calibration and finaly clutch self calibration enable. If that is not solving the issue, you have to change the complete robot unit. (since there are no single spare parts available....)
De latest SW version for the European version is EF16L188 version 0000
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