My Heater Matrix is leaking inside the cabin.
Because half the dash is missing anyway coz it's a stripped out track car, how easy is it to change? Is there a guide to aid me in this feat? Do I need to drain the system?
Any help appreciated...
Giles.
Heater Matrix - 'How-to' guide...?
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Geeman
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Demlotcrew
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I picked up a aircon system from a M40 yessterday for Ԛ£30!
Dude its really easy, if you need any bits right away i have a few spares.
A
Dude its really easy, if you need any bits right away i have a few spares.
A
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kidsinister
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Giles,
When you take off the hoses that attach to the matrix at the bulkhead in the engine bay, you'll lose a bit of water but there's no need to drain.
First job on the inside is to then disconnect the valve from the matrix, and with the bolts done up from the back this can be tricky.
You'll also have to disconnect the brake bracket behind the glovebox, which can be a pain; even with all this removed there may still not be enough clearance to slide the matrix out, in which case the bolts holding the servo to the bulkhead may need removing so you can push the end of the rod out of the way (you'll see what I mean).
As I think I've mentioned before, it's a pig of a job, but you may have less problems if you've less stuff in the way.
If you've a Haynes manual, there's more on this in there than there is in the Bentley manual.
Good luck, and have patience.
When you take off the hoses that attach to the matrix at the bulkhead in the engine bay, you'll lose a bit of water but there's no need to drain.
First job on the inside is to then disconnect the valve from the matrix, and with the bolts done up from the back this can be tricky.
You'll also have to disconnect the brake bracket behind the glovebox, which can be a pain; even with all this removed there may still not be enough clearance to slide the matrix out, in which case the bolts holding the servo to the bulkhead may need removing so you can push the end of the rod out of the way (you'll see what I mean).
As I think I've mentioned before, it's a pig of a job, but you may have less problems if you've less stuff in the way.
If you've a Haynes manual, there's more on this in there than there is in the Bentley manual.
Good luck, and have patience.
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Geeman
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Well... all I need is the matrix unit. I think everything else is okay. Symptoms are leaking coolant fluid onto the transmission tunnel and down into the passenger footwell. points towards the matrix, right?
Andrew, you got that bit spare? Do I need anything else other than the matrix itself?
Andrew, you got that bit spare? Do I need anything else other than the matrix itself?
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Demlotcrew
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I bet its not the matrix but the valve. (i have that)
A
A
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Geeman
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How do I check what is at fault...?
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martinclan
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You should see plenty of green scum from where the actual leak is (assumimng you have antifreeze in your coolant that is). I have just done mine and it turned out to be just from one of the o-rings where the pipes are attached to the matrix so I didn't need to take the matrix out. The hex head screws that hold the pipes to the matrix are a b*gger to undo. I had to buy a 8mm spanner and then cut it in half 
in order to get in the restricted space.
in order to get in the restricted space.
It's an E30 Jim but not as we know it...