Technical Dualogic Problem

[dreamerz]

hi all,

i have some question i hope u guys are able to help me regarding the dualogic,
i just got the vagcom cable and multiecuscan, i did a final service(end of line) calibration, as the test is going on, where the gearbox is selecting thru all the gears, the dashboard shows a msg "gearbox failure" is this normal? or there is a serious problem with my transmission.
There is no error/fault code and it shows completed after its done.

I posted awhile back that my dualogic clutch was sticking.
https://www.fiatforum.com/panda/314811-clutch-sticking.html

and while i am driving, sometime as it change gear i can help a knock sound(i am guessing it is the gear change solenoid) is this normal?

thank you.

 

[Most Easterly Pandas]

Re warnings on dash, should all be ignored if FES/MES is connected. Only an issue if they come up when driving. Regarding the clonk, shouldn't normally hear any clonking.

 

[dreamerz]

Hi MEP,

thanks for clarifying the failure massage, however u said that there shouldnt be any clonk, in this case, what is the possible prob? so far i can hear that it only happens during gear change occasionally. when i did the end of line test, the process where it select thru all the gears, the sound is very similar.
could a worn gear mount cause the sound? or suspension?

thank you.

regards,
Sherman

 

[Most Easterly Pandas]

Are you able to upload a video of this clonk, as one mans clonk is normal to another, so it could be one of the normal noises, but I wouldn't describe any of them as a clonk if that makes sence?

 

[dreamerz]

hi MEP i will try to take a video and upload over the weekend.

however now the gearbox is really problematic, today while driving, suddenly i loss automatic function, i had to restart the car before the auto function come back. i plug in the vagcom cable and there is an error code P1818.
Could you please advice me on this. Thanks

 

[Most Easterly Pandas]

Sounds like the car might be having issues correctly engaging gear. Possibly linked to the clonking.

 

[dreamerz]

so are there any solution to it?

are there any service manual for it?

 

[Most Easterly Pandas]

You need to have the fault diagnosed first, find out what the clonking is.

 

[dreamerz]

hi MEP,

What should i check for and how? im handy with tools and electronics stuff.

or must i send to a specialist shop?

i have cleared the error. everything seems ok now. but the clonk is still there occasionally.

Thank you.

Note: i did a test run to collect some parameters, i can see that the hydraulic pressure fluctuate between 40-50bar during a 5min drive.
link to the testing result its in csv format, the values only.
https://www.dropbox.com/s/2a6l3acmjgjlb81/testing.csv

 

[dreamerz]

update: i think i might know what is the problem. I am guessing that the clutch could not disengage fully for the gear to change and sometime caused the clutch to stick.

Any idea what could be the problem? clutch release bearing?

 

[dreamerz]

update

Confirm its the clutch. have change the clutch pressure plate, clutch plate, bearing, selector fork and bushes. now its back to normal.