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[Gaffers]

Before you remove it make sure it isn't just the O rings that connect the pipes to the matrix.  Fiddly but better than replacing the matrix for no reason

[05omegav6]

So release the pipes at the bulkhead and pop them out of the matrix, replace O rings and refit

[Gaffers]

Release pipes at rear of matrix  access around the back by the pedals
clean
replace O rings
refit

removing the pipes at the bulkhead may help if you cant get enough leverage on the pipes to move them

[Marks DTM Calib]

Are we on oil cooler or heater matrix here 

[05omegav6]

  well Guffer did ask I'm leaning towards the 'if it ain't broke' approach for the oil cooler...

Release pipes at rear of matrix  access around the back by the pedals
clean
replace O rings
refit

removing the pipes at the bulkhead may help if you cant get enough leverage on the pipes to move them

Just had another read of the guide one screw vs.the dashboard, got to be worth a looksie, as I suspect a failed matrix would be pouring coolant out rather than seeping

[Gaffers]

One of the main principles of war:

- Ecomony of effort.

If the matrix aint broke why replace it.

[05omegav6]

One of the main principles of war:

- Ecomony of effort.

If the matrix aint broke why replace it.

Tbh it hadn't occurred to me that the pipes could leak I simply identified the soggy patch in the carpet as coolant and assumed the worst

I shall apply that principle to the oil cooler as well

[kevinp58]

So again the myths and miss information are abound.

The original V6's fitted in 95 and early 96 had a mild steel cooler fitted, these had issues and were repalced by a stainless one. This was fitted from 96 onwards and the replacement you buy is the same.

The issue appears to be that people look at old coolerss and they appear a light brown colour which is more oftne than not rust staining.

A fundamental reason for failure is poor servicing with respect to the antifreeze.

Stainless corodes, period, and under certain conditions it corrodes very quickly (thankfuly not in the presence of good antifreezee) particularly in old antifreeze and neat water.

Al, if your going for 2 then you will probably end up doing 1 as often the rear nut that secures the cooler to the plate is seized resulting in stripped cooler threads and you cant get the cover out without detaching the cooler.

 Ok the original one must have been stainless, but it was very light and the new one was atleast twice as heavy and looked a lot different in structure, and yes it was a genuine one from a VX dealer.