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Heater Matrix - input/output pipes

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28 Mar 2023 14:11 #248283 by maverick
Hi,

Does anyone know the diameter of the Heater Matrix "input/output pipes" as I need to do a flush

Jalapeño, IISY?

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28 Mar 2023 14:23 #248285 by DrRobin
I don't know (I seem to remember 12mm but could be wrong) but I have been thinking I need to flush mine, so if you find out please let me know.

I assume you just disconnect the flexible pipes in the engine bay and force a bit of water through until it comes clear?

Robin

2020 blue SZ5 (one of the last to be registered in the UK)
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28 Mar 2023 18:56 #248291 by Lambert
It's been a while since I had the one in dreadnought changed but I want to say it was about 8 to 10mm but I'm not sure.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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29 Mar 2023 12:15 #248295 by monstarghs
dont forget to turn the cabin setting to heat to open the valves, also flush both ways.

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29 Mar 2023 12:39 #248296 by gv42

monstarghs wrote: dont forget to turn the cabin setting to heat to open the valves, also flush both ways.

There aren't any valves on the jimny

Jimny 2003, and 2013
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29 Mar 2023 18:04 #248311 by Mike G
The matrix pipes stick out the front of the bulkhead just behind the engine. Two rubber hoses attach directly to it. You could take a Vernier caliper to them and measure. However, I'm not a fan of throwing stuff out, I have my old matrix in the garage here. The outside diameter is 14mm on my old one which I expect is factory fitted.

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