Technical Multipla Dashboard gunge removal

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Technical Multipla Dashboard gunge removal

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Jun 29, 2014
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You will need :


The gearstick surround
I split my top off carefully with the kitchen knives to avoid mucking up the gearstick glove, but if you invert this, it can be done without doing this. I found gluing the two parts together rather difficult using cyanoacrylate gel superglue.

The heater control panel
Remove the button cluster and the heater sensor / aircon button unit noting the position of the two types of screws on both these bits.
I didn't dare try removing the white light distribution moulding on the back of the dash panel, the letters etc are impervious to methanol so it wasn't necessary. It is also the reason I couldn't immerse or wash the unit, once liquid gets into this part, it will never come out again, and may well cause lights to fail and/or get dirt and plastic/paint residue on the optical surfaces reducing or preventing the backlit effect. If someone knows how to remove this I will be very interested to know.
Don't try and do the knobs unless you are really desperate and the buttons are nearly impossible although easy to remove - the thin "soft touch" finish on the buttons needs to be removed with lots of acetone (the meths doesn't work) and then polished with a silicone free fine abrasive to get a reasonable finish. This takes forever, so I have only done two so far!

The radio control panel housing
Remove it from the front of the radio and handle gently or you will snap off the little and large plastic lugs on the back! Mine came down to a pleasant black finish, but my wife's is much older and the black finish was worn off in places down to a grey colour base plastic!!


2000 pairs of surgical gloves
4 copies of the Sunday papers
A hot sunny day (it softens the gunge and you must do this outside!!!!!)
2 old fashioned rounded end knives (see Granny's kitchen drawer)
A litre of lamp grade methanol, preferably without colourant (don't use acetone, it's too aggressive and leaves streaks)
10 wooden ice lolly sticks or equivalents
4 old toothbrushes
a small bladed screwdriver
Old towelling cut into smallish squares (you probably need about 20)
A roll of kitchen paper
A handy rubbish sack next to where you are sitting
Old clothes
About 2-4 hours free time
Lotsa patience
A loving, caring and supportive family (tea, more rags etc)

When the plastic is warm, gently scrape off the surface gunge using the lolly stick/rounded fine bladed kitchen knives/small screwdrivers wiping the residue on a strip of meths soaked towelling on a firm base (not easy - this stuff is sticky!!). Go easy, or you will gouge the surface.
Use ample quantities of meths on the towelling to get down to the first undercoat (probably light grey), the towelling will wash off the residual gunge, which is mega-sticky. As the meth evaporates, the relatively dry and not-so-sticky undercoat can be scraped gently and then wiped/rubbed/scrubbed off on the meths soaked towelling leaving a pleasant, relatively dark not - too - shiny plastic finish (see photo).
The little slots and the edges of the heater/fan bits require a delicate hand and a fine screwdriver with the toothbrush and copious meths to get all the crap off.
A final wipe down with warm soapy water and a final wipe down with warm clean water and towel dry.
Wait a day or so to dry off before refitting
 

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You made a good job of it anyway, beyond me why Fiat put that **** on there in the first place!
 
Had a go at mine today
Just did cup holder gearstick surround and ashtray front
Neat paint thinners and a rag
Make sure rag is white though
tried with a red one first
Big mistake lots of red streaks left behind
Also had a play with steam cleaner
That softened it all up nicely
Then thinners all goo has now gone
Shiny plastic is how fiat should've done it
 
Hi

Have got a new set of buttons after a disaster with the originals.

Managed to remove most of the gunge from the new set but am left with a white deposit.

The old heater control is free of gunge but left with white streaks

What next?

Les
 
Latest Update,

I somehow found a new heater control panel on French ebay still in the original packaging. It looks great but no doubt will soon display the old problems.

So being free to try anything with the old panel I did this:

Removed as much as I could of the crap using acetone. Rubbed it all down with wet and dry paper, sprayed it with plastic primer and then with plastic paint.

It looks great so I will just hang on to it to replace the new one in the future.

I did manage to remove the back of the panel to let me remove the temp and speed indicators from behind the panel.
 
When removing you have to take the central fan speed button out as there is a 3mm screw that has to be removed.:bang: As I have just spent 1/2 an hour and scratched and broke bits off, as no one said this was there!!!!!!!!!!!!!!!!!!!!
 
+1 for head scratch in finding the screw behind the central heater nob
Wiltshere posted about "ACETONE FREE varnish remover from Asda"
I used this and a scotch bright and quickly got the gunk off. It is good.

Asda stuff has vitamin B5 ! seriously ingredients say Ethyl acetate and isopropyl alcohol IPA as main things in there.
I will try IPA on its own.

There are 2 layers of the rubber finish on my 2004
first under layer is lighter grey then deeper down is a harder darker grey.

I will try acetone on its own and also IPA/surgical spirit
 

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Solvent abuse !

I only found this post after starting. It is a really good post. Reading the first post properly they use meths and this is cheaper and seems to work just as well as acetone free nail polish remover.

Scotch bright green pads is my main weapon of choice, with old micro fibre clothes to follow up - seems quick for top layer. Cut in strips. Toothbrush and nylon nail brush were good too for me. Keep gently scouring and wetting it to get it dissolved and wetted.

The layer of light grey under the top gungey layer takes ages to come off though. I gave up on getting all the heater control panel back to darker grey and have tried some trim black stuff to cover up, which will clean off easily. Not sure if it will be tough enough to be final ... should I have painted them or something huuum. It was a lot quicker than trying to get off all the light grey and uniform !

Light grey did not seem that tough to stay as final finish either.

On + side no more gunky buttons and ugly slimy gunk to look at.

I tried meths (£1) and it is about same as acetone free Nail varnish remover (£2) Home and bargains meths is about £1 for 1/2 litre - that is a bigger bottle than the nail varnish stuff.

IPA / surgical spirits also seems to work well - but that is more costly than meths I think. Cannot remember the price of the bottle in the cupboard.

The buttons do seem to clean up with meths or acetone free nail varnish stuff - back to hard dark plastic in one layer, not tried the meths yet on these.
They pictures stay on them no problem.

I will get some pictures later.
 
Gave up on black trim stuff as it was coming off with water. Used Autotek grey bumper and trim paint.7 quid on Amazon. Does not need primer or anything ?
Seems good ... See how tough it is over time.
I did ash tray cup holder as well as gear surround and heater controls.
Tried rear door handle too.
 

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Gave up on black trim stuff as it was coming off with water. Used Autotek grey bumper and trim paint.7 quid on Amazon. Does not need primer or anything ?
Seems good ... See how tough it is over time.
I did ash tray cup holder as well as gear surround and heater controls.
Tried rear door handle too.

I have repainted the following:

- the door inside handles
- the ashtray
- the cup holder
- the top dashboard cover for the speedometer
- I was able to find a replacement heating control panel which was in hard plastic.

The way I did it was to take down the pieces and then sand them etc. etc. then prime them with plastic primer then spray them with plastic satin black and then matt lacquer on top.

The result is very nice, altough someone with more professional skills could do a better job I am sure.

I am now left with the central part of the dashboard itself, the bit that houses the entire lot, the heating vents, and all the casing for everything else.

Does anyone know how to remove it?
 
Gave up on black trim stuff as it was coming off with water. Used Autotek grey bumper and trim paint.7 quid on Amazon. Does not need primer or anything ?
Seems good ... See how tough it is over time.
I did ash tray cup holder as well as gear surround and heater controls.
Tried rear door handle too.

I went through the entire sanding, primer, sand more (P2500) and then satin black and then matt lacquer and repeated the excercise from scratch at each mistake!

This is the result. I drove about 5k km since, and the paint didn't come off.
 

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Gave up on black trim stuff as it was coming off with water. Used Autotek grey bumper and trim paint.7 quid on Amazon. Does not need primer or anything ?
Seems good ... See how tough it is over time.
I did ash tray cup holder as well as gear surround and heater controls.
Tried rear door handle too.

How did you get the rubber out to start with? How did you remove it? Did you sand it down and if so with which grey of sandpaper?
 
I just used green scotchbrite to get rubber gunk off with meths. It roughs it a little. The Autotek paint is supposed to not need primer or anything. All fine after first week.

Your black looks good.

Do not know how to get all rest of dash out. I used autogleam gel stuff that is used on outside trim and a bit of meths first to clean it up a bit.
 
I just used green scotchbrite to get rubber gunk off with meths. It roughs it a little. The Autotek paint is supposed to not need primer or anything. All fine after first week.

Your black looks good.

Do not know how to get all rest of dash out. I used autogleam gel stuff that is used on outside trim and a bit of meths first to clean it up a bit.

After you painted it grey, do you notice any scratches on the top?

To get it smooth with the black I had to sand it a long time with the P2500 after the primer... Otherwise you could see scratches underneith.

From what I understand the main dashboard can be removed, but you have to remove the entire dashboard panels and everything else.

I haven't done it yet as mine isn't a disaster as yet.

But apparently you have to start from the fuse box, then remove every screw you can find and of course remove the heating control panel, the speedometer etc. etc. and proceed from there.

I think I will have to do it in a year or so.
 
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