Technical Duologic gearbox problem

[jackwhoo]

71752610

I think that's correct part number but you need to check

 

[jackwhoo]

Valve unit for Selespeed gearboxes with seals

Fiat 500, Grande Punto, Idea, Panda, Punto (Evo) Lancia Musa, Ypsilon

augustin-group.com

Zoom in on photo you can see it at front of assembly, left side of first pic.
7th pic on link is close up.

 

[18turbo]

Post 28 wasn't me

Yes gear position switch can just be removed no pressurised fluid behind it

Image in post 51 do not rely on part number shown the image was provided to show what it looks like not for part number.

Ok. I think I will remove old one and see if I can see a part number, might not be today, but one night this week lol

 

[koalar]

Clear the codes

Try it for a bit

Read the codes

Try it till it fails

Read the codes

P1818 does not help much
The transmission control unit has asked for a change

It's failed mechanical, hydraulic or failed to register (sensor)

 

[18turbo]

It usually fails within 15 minutes, so I will do that !

 

[MrMagoo]

You've lost fluid. There are 2 areas the robot leaks from - the gear selector actuators (2 solenoids) and the clutch actuator. The clutch actuator will have have weepage around if it has been leaking. If the gear selector actuators are leaking, the leaking fluid builds up towards the gear position sensor at the front, and will show weepage.
Mine has weepage around the clutch actuator, but it's currently behaving itself.
It's interesting you can still change gear manually (up/down) when hot, which suggest the robot is working ok.

 

[MrMagoo]

Fyi, Alfa odb demo app will show you fault codes too. I now have the paid version of this.

 

[koalar]

Some tests here

Koalar random thoughts | FIAT Panda (Mk3)

Hi koaler success someone had insulated the small thread that fits inside the battery tray with tape presumably to stop it rusting I took the tape off so I could get the bolt off then the gauge instantly went to 3/4 so thanks for your help

www.fiatforum.com

And in the PDF here first one

Section

Р1818 (A/B-III) Shifting Gears Control (24)

Gives some hints and a few possibilities

Unfortunately this code isn't particularly helpful. Its basically say something went wrong but don't know it does not know what

 

[18turbo]

Looking at that photo, I am thinking is the green line on the actuator fluid reservoir the minimum or maximum level as I can't see any words on mine ?
I have taken it to be the maximum level with the unit depressurised, am I wrong ?

 

[koalar]

Looking at that photo, I am thinking is the green line on the actuator fluid reservoir the minimum or maximum level as I can't see any words on mine ?
I have taken it to be the maximum level with the unit depressurised, am I wrong ?

The dialogic has gone through quite a few different evolutions

Is this reservoir closed to yours

Should be at the min after the door been opened