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The only place for a coil spring is up Zebedee's arse
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On the trail of the mystery rainwater leak into the drivers footwell I happened to flash my UV torch across the carpet and it lit up like a Christmas tree on the left hand side, right where the heater O rings would leak if I had any.
On closer examination the coolant is coming out from the heater housing, not the hose connections, so the 6 month old Nissens matrix has failed!
Naturally, when I fitted it, I did it with dash out, and didn't cut any of the metalwork in the way, so, unless I go into butcher mode, the bloody dash will have to come out again.
This car really is possessed by demons and is so high maintenance compared to the old blue one that just keeps on working. There is going to come a time where I just run out of patience with it- and that time's coming very soon.

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Box of matches in the post 🤭

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no10chris wrote:

 Box of matches in the post 🤭

Excellent- thanks Chris.
I sense a little "incident" happening when I empty the LPG tank :)

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This is what i found when i removed my brand new leaking nissens rad:

https://www.dropbox.com/s/grvnywnm024kzm8/2017-12-13%2015.53.54.jpg?dl=0

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It's interesting- I've never had QC issues with anything Nissens that I've used in the past,
Ah well, dash is out, matrix is out, just awaiting the warranty replacement, which hopefully will be here today. It's interesting that when you've had the dash/ heater out once, how fast you can do it the next time!
Car now sitting with an industrial dehumidifier in it, drying out the carpet- again...
EDIT- also a good opportunity to replace the solar sensor BTR9733 that hasn't worked since the last time I took the dash out!

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New matrix arrived and pressure tested!
I'm thinking I'll have the dash back together today, but it'll take longer to dry the bloody carpet. I'd forgotten how much cleaning they took to get rid of the coolant.

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what had actually failed on the old one?

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Pinhole in the actual matrix tubing where it curves back on itself