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Old 17-01-2019   #526
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Re: The one and only Dualogic failure thread

Quote Originally Posted by FrancescaM View Post
Hey ...

I am also new desperately seeking any advise.
I am the owner of a 2013 fiat 500 0.9 twinair dualogic.

I was on a motor way doing 60PMG when my car transmission cut out.
I had to swerve into a verge and still not sure How I alive.

The only pre signs to this was my car screaming in 2nd gear going into 3rd in the auto mode. Sometimes it would take a good 10 seconds.


OK, so from what little you have said, suggests that the control unit is having problems getting the gearbox into gear.

Can you hear the pump running? How often?
The control unit will have the same issues as a driver in a manual car, getting into gear, if the clutch is worn/damaged - but dropping out of gear suggests a hydraulic issue.


When I took my car into Desira (Fiat franchise) they told me I needed a new actuator or gearbox or both! The cost - £2400.00. a test also was needed £300.00 to confirm the actual problem? A car only done 40K full service historyand lightly used?? So thats when I contacted FIAT HQ so make a complaint.


This is the same crap you get from many manufactors´ dealers and its why people love lease cars - you give them back after 3 years and get a new one


They advised me to have this further diagnostic, and I had no choice. I called 3 other garages who declined the work and refused to look at this type of car.

after a few days Desira called to say that my car was now not showing any errors.
Even though they had said it was the actuator or gearbox or both?!

So now I ask .. what is wrong with it then!!! They said they would have to take a guess and not a fact and go with Clutch and flywheel but are not surer at all and the car requires a 7hr labour strip down .. The cost £760.00!!!!

This is where I currently am. FIAT UK not giving a flying Toss and I am very upset and angry.


I am not suprised that Fiat are unwilling to help on a 5 to 6 year old car


I have now reached breaking point and after reading so many of the same problems I am thinking of building a case and going to the Motor Ombudsmen.


There is something in the region of 60-65 complaints about this gearbox control unit across 35 pages of this forum. Fiat have sold 10000s of Dualogic 1.2 and TwinAirs across Europe - not forgetting that the same unit is fitted to Pandas and some Puntos. This doesn´t make the issue common - annoying and sometimes expensive but not common.


How does a Fiat specialist tech no know whats wrong with a car??
are they hiding something??

Contrary to what the forum suggests, Fiat dealers don´t see the issue enough to have much experience from it


Is this 7hr labour strip down to get rid of me?


They are saying they have no clue, so they want to remove the gearbox control unit, the gearbox and inspect the clutch and flywheel. Sounds reasonable, if you want to inspect the control unit and replace the clutch/flywheel at the same time.... but really they haven´t a clue!

As above
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Last edited by p6baseunit; 17-01-2019 at 23:25.
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Old 09-02-2019   #527
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Re: The one and only Dualogic failure thread

Hi, could do with some help.

Was driving in very heavy rain (not sure if this matters) yesterday when all of a sudden my Fiat 500 2010 dualogic got stuck in 2nd gear. Then after fiddling with it, it changed from 2nd gear to neutral. Now it’s stuck in neutral and had to tow it home.

I can still hear the hydraulic pump priming when I open the drivers door. Brake lights are also working so it’s not a faulty brake switch.

The “transmission fault” warning symbol flashes.
And the messages that come up on the dashboard are:
Check transmission
ASR disconnected
ABS unavailable
Hill Holder unavailable
ESC unavailable


What could be the cause of this?? Any ideas? Thank you
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Old 09-02-2019   #528
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Re: The one and only Dualogic failure thread

If there is no fluid leaking under the car, I would start by checking your battery, earth leads, brake pedal switch, and then (most likely but more effort) your tailgate wiring.
If you eliminate all of those (forum search will find info on how to...) then it may be something more complicated, but don't cross that bridge until you get there.
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Old 10-02-2019   #529
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Quote Originally Posted by whit05 View Post
Hi, could do with some help.

The “transmission fault” warning symbol flashes.
And the messages that come up on the dashboard are:
Check transmission
ASR disconnected
ABS unavailable
Hill Holder unavailable
ESC unavailable


What could be the cause of this?? Any ideas? Thank you
Hi.
Good proportion of those are common across all fiats no matter which
Engine or gearbox.

And are generally down to power supply


Have a read

https://www.fiatforum.com/grande-punto/318839-electrical-gremlin-thread.html

Charlie
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Last edited by varesecrazy; 10-02-2019 at 10:53.
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Old 12-02-2019   #530
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Re: The one and only Dualogic failure thread

So I took you guys’ advice. Checked for leaks and corrosion, there was none. So checked battery and it was only on 55%. Charged it up to 100%. Started the car and now the gears are changing again and the car moves! I had no idea that a low battery could cause this. The AA man convinced me that my gearbox was a dud.

Now, only issue is that the warning messages still show up on the dash? “Check transmission” and ASR, ABS, ESC and hill holder are still unavailable. How do I get these features to work again?
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Old 12-02-2019   #531
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Re: The one and only Dualogic failure thread

There’s a button for “ASR off” that’s illuminated and when I press it, it still doesn’t turn the ASR on. I won’t be driving the car until I get the ASR/ABS/ESC warnings sorted but I’m just happy my gears work again
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Old 18-02-2019   #532
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Re: The one and only Dualogic failure thread

So just when I thought the problem was fixed, it’s not. Bought a new battery. Car no longer has any warning messages/symbols on dash and ASR etc are working again. BUT it’s now stuck in reverse gear. Had 3 mechanics look at it and they all don’t know what’s wrong with it. Only suggest towing it to a Fiat dealership but it can’t be towed because it’s stuck in reverse now. Very annoying and I’m stuck at this point
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Old 27-03-2019   #533
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Re: The one and only Dualogic failure thread

Quote Originally Posted by BobLeeSwagger View Post
Thanks for the clarification p6baseunit,

I checked the selespeed oil level (waited overnight) and its little bit under the min mark. (pics attached) also found a small oil leak from the position sensor.
Think this can also be a reason for sudden neutrals.

Anyone know a place to buy the o rings/oil seals for this unit?
found some items on ebay and they are way expensive.
In case this information is still needed. Here you can get them in Brazil: https://www.motortechoficina.com.br/
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Old 26-04-2019   #534
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Hey all,
I'm just looking for any info on the Doblo's dualogic. I am seriously considering buying a new Doblo. It is a 2018 with the 5 speed dualogic.
I've noticed that the manual version of this van with the same engine has 90Nm more torque, at 290Nm and 77Kw, whilst the dualogic has 200Nm and 66kw. Is this because the dualogic can't handle more than 200Nm?
Can anything be upgraded so that it handles more torque?
Also, being a 2018 model, are they fairly reliable now?
Lastly, can anybody tell me which dualogic it uses? As I understand that there is a few different ones out there.
Thanks heaps in advance.
I've also posted in the Doblo section, but it seems to be very quiete over there.
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Old 01-05-2019   #535
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Re: The one and only Dualogic failure thread

Quote Originally Posted by cubic25 View Post
Hey all,
I'm just looking for any info on the Doblo's dualogic. I am seriously considering buying a new Doblo. It is a 2018 with the 5 speed dualogic.
I've noticed that the manual version of this van with the same engine has 90Nm more torque, at 290Nm and 77Kw, whilst the dualogic has 200Nm and 66kw. Is this because the dualogic can't handle more than 200Nm?
Can anything be upgraded so that it handles more torque?
Also, being a 2018 model, are they fairly reliable now?
Lastly, can anybody tell me which dualogic it uses? As I understand that there is a few different ones out there.
Thanks heaps in advance.
I've also posted in the Doblo section, but it seems to be very quiete over there.
Hi there, the Dualogic unit in this section only fits the 5 Speed boxes on the TwinAir/1.2/older 1.4 - So the Doblo unit and gearbox are different yes.

They are fairly reliable yes... Fiat sells thousands of them across Europe and there are some 70ish complaints on here.

I have just part ex my Jan 2014 0.9 TwinAir Dualogic with 55000 miles on the clock... Had it from new for over 5 years... The engine and gearbox where a dream, no issues in that time. Wish I could say the same for the suspension though.

I would go for one of the more powerful turbo diesels and get a manual version... assuming you can drive a manual!

A manual gearbox is always going to be more reliable - same with all autoboxes!
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Last edited by p6baseunit; 01-05-2019 at 23:27.
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Old 24-05-2019   #536
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Re: The one and only Dualogic failure thread

Hello All,
This is my first post. I have recently bought a 2014 Twin Air with 40,000Km on the clock. I was having probs getting it to from reverse into first without having to turn the engine off. I was told before purchasing it that the gearbox had been replaced while the car was still under warranty and before proceeding with sale I verified this verbally with the Fiat dealership who had carried out the repairs. I was told by phone that a new gear box had not been installed but rather all new components had been placed in the gearbox. I was told this work was under warranty.
I took the car to the dealership who had done these repairs to have the car checked out and was told I need a new actuator at a cost of ~ $AU 8000.00.
I asked the dealership to take this up with Fiat Australia ( apparently Fiat Australia will only allow you to go through the dealership in the first instance). FA has come back and said in the first instance I need to replace the accumulator diaphragm at a cost of $AU845.00.
The service guy is very half hearted in his belief that this will solve the problem.
Has anyone out there had any experience of this?
Thanks in anticipation
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Old 24-05-2019   #537
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Re: The one and only Dualogic failure thread

It would be cheaper to import a new actuator from here look on www.shop4parts.co.uk
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Old 24-05-2019   #538
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Re: The one and only Dualogic failure thread

Quote Originally Posted by Liblet View Post
Hello All,
This is my first post. I have recently bought a 2014 Twin Air with 40,000Km on the clock. I was having probs getting it to from reverse into first without having to turn the engine off. I was told before purchasing it that the gearbox had been replaced while the car was still under warranty and before proceeding with sale I verified this verbally with the Fiat dealership who had carried out the repairs. I was told by phone that a new gear box had not been installed but rather all new components had been placed in the gearbox. I was told this work was under warranty.
I took the car to the dealership who had done these repairs to have the car checked out and was told I need a new actuator at a cost of ~ $AU 8000.00.
I asked the dealership to take this up with Fiat Australia ( apparently Fiat Australia will only allow you to go through the dealership in the first instance). FA has come back and said in the first instance I need to replace the accumulator diaphragm at a cost of $AU845.00.
The service guy is very half hearted in his belief that this will solve the problem.
Has anyone out there had any experience of this?
Thanks in anticipation
Hi.
Got a couple of questions...
What does it actually do when you change from reverse into first? (Beeps, message, noises, etc.)
Does it have problems going the other way?
When you do this, are you definitely completely stopped, foot on brake?
Does it do the same with handbrake on too?
What happens if you change to Neutral, pause, and then into first? (5 seconds pause or more?)

In particular, beeps, messages and noises (gearbox clunk/grind, pump motor start stop, etc) while problem occurs would be good to know.

Doesn't sound accumulator-related to me, but....
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Old 25-05-2019   #539
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Re: The one and only Dualogic failure thread

Thanks for your reply
When I try to go from reverse into 1 it goes into neutral, beeps and N flashes on the dash. Same can happen when starting from neutral trying to go into 1st.
It has happened once when I was manoeuvring out of a parking space without foot on the brake.
I don't know if it does it with the handbrake on. I will try it
Nothing will shift it unless I turn the engine off and start again. I have tried pausing, pausing + swear, swear alone...all to no advantage. And I can do a pretty mean swear in Italian
No clunks or grinds. At the service centre they said there is loss of pressure in the actuator causing the pump to come on every 40 secs

Hi.
Got a couple of questions...
What does it actually do when you change from reverse into first? (Beeps, message, noises, etc.
Does it have problems going the other way?
When you do this, are you definitely completely stopped, foot on brake?
Does it do the same with handbrake on too?
What happens if you change to Neutral, pause, and then into first? (5 seconds pause or more?)

In particular, beeps, messages and noises (gearbox clunk/grind, pump motor start stop, etc) while problem occurs would be good to know.

Doesn't sound accumulator-related to me, but....
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Old 25-05-2019   #540
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Re: The one and only Dualogic failure thread

Does it ever have problems with any other gearchanges?
If it's only when changing direction, I would change out the brake pedal switch as an experiment. Also check & clean up the connectors on the rear light clusters (sounds flaky, but can cause weird problems)

If the pressure readings really are as described, it could be accumulator.

If you turn on the ignition without starting, and select gears, how many changes do you get between pump running?
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