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Old 06-03-2019   #1
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Fiat Stilo Instrument Cluster Repair Question

Hello,
This is my first post on the Fiat Forum - although I'm a frequent spectator and very appreciative of the help I have obtained in the last few years from you guys for my 2003 Stilo 1.2.
Like a lot of others have posted here, I too have a Fiat Stilo with a faulty instrument cluster.
The cluster instruments are dead except that the LCD screen glows orange.
I have checked the fuses F37 and F53 but with no success, so I removed the cluster (thank you so much to the previous posters for the guide on how to do this !).
I removed the cluser from it's plastic housing and then reconnected it to the D connector on the wiring loom so it's getting power.
The LCD screen still glows orange as before but I have noticed that if I move the large capacitor on the back of the board (220 microfarad circled in the photo) some lights on the cluster (such as the green headlight symbol) illuminate temporarily.
This leads me to suspect that there is a bad solder joint somewhere in the region of that capacitor on the board.
My problem is that to get at the soldered side of the board I need to remove black faceplate and the needles from the gauges.
Does anyone know if there is a safe enough way to do this without destroying the instruments ?
Or is attempting this myself a recipe for disaster ?

Many Thanks.
Enda
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Last edited by WD39; 06-03-2019 at 23:59.
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Old 07-03-2019   #2
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Re: Fiat Stilo Instrument Cluster Repair Question

The four white "hook" tabs (about a quarter of the way in from each short end) hold the board in place but you will probably have to remove the needles from the instruments first, since their spindles will come out with the board. The needles just press on but very very careful with them when removing and also fitting, to not bend or fracture anything with undue pressure.


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Last edited by Ralf S.; 07-03-2019 at 07:41.
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Old 07-03-2019   #3
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Re: Fiat Stilo Instrument Cluster Repair Question

Quote Originally Posted by WD39 View Post
My problem is that to get at the soldered side of the board I need to remove black faceplate and the needles from the gauges.
Does anyone know if there is a safe enough way to do this without destroying the instruments ?
Twisting the needles anti-clockwise sometimes helps removing them without pulling the spindles out.
.
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Last edited by Davren; 07-03-2019 at 10:30.
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Old 08-03-2019   #4
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Re: Fiat Stilo Instrument Cluster Repair Question

Thank you for the replies Davren and Ralf. I will give this a try at the weekend and update if I have any success. Cheers
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Old 10-03-2019   #5
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Re: Fiat Stilo Instrument Cluster Repair Question

Hi Guys,
I have made some progress on this - some good and some bad.

The good is that I have got the LCD display working again.
I stripped away the instrument needles and black instrument faceplate thus giving accesss to both sides of the board.
The main issue I believe was the 6-pin connector where the LCD panel is attached to the circuit board.
I removed the LCD screen (it's just a push-in fitting) cleaned all contacts with contact cleaner spray and when re-assembled everything is working again.

Now the bad news, the instrument needles needed a LOT of force to before they would come out and while two of them came away cleanly, the other two ended up with the spindles from the servos staying attached to the instrument needles.
Needless to say I was gutted but kept going anyway.
So when the instrument cluster was powered back up and LCD screen was looking good I still had a dead speedometer and fuel gauge.
I tried to re-insert the spindles back into the servo motors but I reckon that I ruined them during the removal process.
However, I have discovered that these servos aren't a huge deal to remove from the board, just 4 soldered connections.
The part numbers on all 4 servos are the same so I removed the servo for the rev counter (which was working well) and installed that one in place of the broken fuel gauge servo, so the fuel gauge is now working.

I will still need to buy a used instrument cluster to get myself two servos to replace the damaged ones (needless to say I will be extra extra careful with removing the instrument needles on this one) - I'm hopeful that some breaker's around Dublin might have one at a decent price.
I'm disappointed about damaging these two servos but will be happy if I'm able to keep the original cluster ( so will still have original mileage reading and won't need to proxy allign etc. as would be the case if a replacement cluster had to go in).
Hope this helps someone else anyway.
Cheers.
Enda
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Old 10-03-2019   #6
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Re: Fiat Stilo Instrument Cluster Repair Question

New stepper motors available here: https://www.ebay.co.uk/itm/Stepper-m...cAAMXQjWtRQ6QD
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Old 12-03-2019   #7
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Re: Fiat Stilo Instrument Cluster Repair Question

Great, Thanks Davren I'll take a look
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Old 12-03-2019   #8
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Re: Fiat Stilo Instrument Cluster Repair Question

If you pull apart the switec stepper motor that the shaft came out of, you'll notice that theres a gear flapping about, sometimes you can prize open the case and push the spindle back in & reassemble the motor.
You can get sets of 4/6 from ebay very cheaply.
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Old 15-03-2019   #9
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Re: Fiat Stilo Instrument Cluster Repair Question

Tis it yerself WD39?
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