General Heater matrix - the aftermath

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General Heater matrix - the aftermath

IanWard

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After finding a leaking heater matrix on my daughters car amongst a load of other things in a previous thread https://www.fiatforum.com/threads/bad-earth-poor-starting.489491/ decided to finally get around to cleaning the carpets, as there had been that much coolant leaked into the car - it started steaming up and the coolant stuck like grease to all the windows and had to clean every 4-5 days, the plan was to strip the interior pull out the carpet and jet wash, leave to dry and put back.

Stripping the car interior wasn't too bad, though clearly the carpet is fit before a lot of the centre console is fitted so had to slice in a couple of places to get out, all the backing (underlay stuff) on the carpets had badly deteriorated so found the easiest way was to simply replace the carpet.

Interior 1.jpg


Interior 2.jpg


We got a replacement carpet from a slightly newer car (had the clips on for mats) - everything fit the same, though has 3 additional holes in the passenger footwell, but not sure what they were for (but get covered by the footmat), and again had to make a few strategic cuts to refit behind the centre console. but made sure they are all out of sight and in the middle so cant be seen - I'm sure there is a way to take all that lot out but on balance seemed the simplest solution.

Interior 3.jpg


We managed to remove and refit without removing the rear trim where the back seat it, though was quite fiddly to get the carpet fitted back snugly in the corners, a little perseverance was needed there (can see in the image below where the drivers seat belt is anchored)

Interior 4.jpg

Carpet back in - then everything else just fitted straight back in, did take the opportunity though whilst was in the workshop to fit a bluetooth module so she can stream her music, after the last one packed in every 10-15 mins - this one came with an external mic so can now do handsfree calls (bonus as the blue & me doesnt work when adding the aux / bluetooth unit) - just had to run an ignition live up from the fusebox and feed the mic lead behind the speedo etc. plug in and works like a treat.

Hoping that's the last of the big jobs now (touch wood) - I have to say though the more I work on this little car, the more I like it - great fun little thing!
 
After finding a leaking heater matrix on my daughters car amongst a load of other things in a previous thread https://www.fiatforum.com/threads/bad-earth-poor-starting.489491/ decided to finally get around to cleaning the carpets, as there had been that much coolant leaked into the car - it started steaming up and the coolant stuck like grease to all the windows and had to clean every 4-5 days, the plan was to strip the interior pull out the carpet and jet wash, leave to dry and put back.

Stripping the car interior wasn't too bad, though clearly the carpet is fit before a lot of the centre console is fitted so had to slice in a couple of places to get out, all the backing (underlay stuff) on the carpets had badly deteriorated so found the easiest way was to simply replace the carpet.

View attachment 402777

View attachment 402779

We got a replacement carpet from a slightly newer car (had the clips on for mats) - everything fit the same, though has 3 additional holes in the passenger footwell, but not sure what they were for (but get covered by the footmat), and again had to make a few strategic cuts to refit behind the centre console. but made sure they are all out of sight and in the middle so cant be seen - I'm sure there is a way to take all that lot out but on balance seemed the simplest solution.

View attachment 402778

We managed to remove and refit without removing the rear trim where the back seat it, though was quite fiddly to get the carpet fitted back snugly in the corners, a little perseverance was needed there (can see in the image below where the drivers seat belt is anchored)

View attachment 402780
Carpet back in - then everything else just fitted straight back in, did take the opportunity though whilst was in the workshop to fit a bluetooth module so she can stream her music, after the last one packed in every 10-15 mins - this one came with an external mic so can now do handsfree calls (bonus as the blue & me doesnt work when adding the aux / bluetooth unit) - just had to run an ignition live up from the fusebox and feed the mic lead behind the speedo etc. plug in and works like a treat.

Hoping that's the last of the big jobs now (touch wood) - I have to say though the more I work on this little car, the more I like it - great fun little thing!
Top man! I hope your daughter knows what a great dad she has! (I’m sure she does)☺️ You want an extra daughter??? 😂 I think you have had to do a bit more on your daughters car than I’ve had to do on my own… and I didn’t think that was possible 😂
 
Looks like you have a nice large warm dry area to work on it can make a big difference
I am very fortunate that my brother has a decent size garage / workshop area that I get to use when needed, as you say makes a huge difference when you're not battling the elements.
 
Got bored looking for the appropriate thread sorry admin
Got out the car today and me being me noticed a sweet warm smell .. got under the bonnet with my nose 👃 and torch and saw coolant on my undertray
Disturbed the bleed pipe with torch and the bloody top of the bleed screw fell off followed by a torrent of coolant fleeing upwards from a pin sized hole in the remaining plastic thread

Managed to remove the plastic screw with a pair of very sharp needle nosed pliers I’ve also managed to find an appropriate sized metal screw with a small rubber washer that’s coolant and heat safe
Now…. Do I replace the original like for like or do it just stick to the metal screw? It’s tight the right size and doesn’t appear to be leaking!
 
The Younger Mrs S' Cinquecento had the screw head snap off. I found that a number-plate screw would fit, as long as I used an O-ring and didn't tighten it down too much (otherwise the O-ring would squirm out). That lasted okay for years.. although I hardly ever touched it while I was waiting to get round to finding an OE screw to fix it "properly".


Ralf S.
 
The Younger Mrs S' Cinquecento had the screw head snap off. I found that a number-plate screw would fit, as long as I used an O-ring and didn't tighten it down too much (otherwise the O-ring would squirm out). That lasted okay for years.. although I hardly ever touched it while I was waiting to get round to finding an OE screw to fix it "properly".


Ralf S.
A typical “fiat” quirk …. A plastic screw for something that gets HOT! Probably a general car thing but I’m only experienced on my 500

Yeah I’m reminded today why I don’t clean out my tool box!! Found this flat bottom metal screw in the bottom of my box that fits perfectly and had loads of tiny coolant washers I bought in error years ago!
I wonder if there is some sort of upgrade available for this however I have a feeling my screw is an upgrade 😂
 
We got a replacement carpet from a slightly newer car (had the clips on for mats) - everything fit the same, though has 3 additional holes in the passenger footwell, but not sure what they were for
The three holes are probably from the fitting of dual controls, and the donor car had been used as a learner car. Most dual controls will use the mounting points for the LHD pedal box, so leaving no evidence when removed, but cars like the 500, with the brake stuff on the left and linkages across the car, prevent use of the pedal box mountings, so you get holes in the floor. If done well, the carpet gets punctured just enough for the bolts to fit, and are barely visible afterwards.
At least you've not got the car with the holes in the floor.
 
A typical “fiat” quirk …. A plastic screw for something that gets HOT! Probably a general car thing but I’m only experienced on my 500
An old story. Had a plastic T-junction in my cooling system on an Alfasud in the early 80ies. It broke and overheated the engine (no damages fortunately). Went to a breaker yard (how I miss those) and removed a similar part from an older Alfasud - bingo, this one was made of solid metal!
So this kind of quirk is probably as old as the car industry, at least since they are run by bean counters and not by petrol heads🙄
 
An old story. Had a plastic T-junction in my cooling system on an Alfasud in the early 80ies. It broke and overheated the engine (no damages fortunately). Went to a breaker yard (how I miss those) and removed a similar part from an older Alfasud - bingo, this one was made of solid metal!
So this kind of quirk is probably as old as the car industry, at least since they are run by bean counters and not by petrol heads🙄
I’m with you on that … I would love it if old scrappers were still on the go! I found myself caught out when the bleed screw fell apart!! I couldn’t drive until I had sorted it!
It won’t catch me out again!! I have spares now including thermostat.. just in case
 
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