Vauxhall Corsa heating matrix

Gavmacp | 18:41 Sat 01st Dec 2012 | Motoring

8 Answers

Removed this and briefly ran water through it. Had to put it back (forgot we are going to London tomorrow) but still not as hot as hoped.
Is it worth taking out again?
If not does anyone know of cheap replacement?

When night driving on a Motorway.

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TWR

Change the thermostat.

Gavmacp

Question Author

Did that first!

Gavmacp

Question Author

There is about a 1/4 of the matrix that does not heat. Wondering if it is worth taking out and buying chemical to try and unblock.

TWR

Back flush the system, was the matrix leaking?

TWR

Is it blocked?

Gavmacp

Question Author

No matrix looks fine.

Gavmacp

Question Author

Yes thinks there is part of it blocked. Was going to leave it off and look at tomorrow but as I said we are off to London so put it back.

TWR

Be careful you do not get the system air locking Gav, you should be able to pressure flush the Matrix, as you know the inside tubes / channels are very thin, try a Descaler over night in the Matrix.

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