Just how hard is it to replace the heater matrix in a K11?

[templar2k5]

Hello everyone, a friend mine has a 1995 K11, and the heating has gone all bandy. The fan controller only works on one setting, and no warm air comes into the cabin, at all. When the blower's turned on, all he gets is a steamed-up front screen!

Just how hard is it to replace the heater matrix and fan controller switch?

Many thanks in advance

 

[MicraPRO]

Matrix should be fine I'd do a coolant change before pulling the dash out...
It's just the resistor card that needs swapping out... passenger footwell up top 2 screws and unplug it it will fall out.

 

[Agent_Sm1th]

Change the filter when you change the resistor card. It's most probably clogged up.

 

[1275]

Check the heater knob is in the right place on the spindle, it's possible for it to jump the splines .

 

[templar2k5]

Thanks for the replies. My mate's telling me he gets no heat in the cabin at all. Could the filter cause this? Cheers

EDIT: What's causing the steamed up screen, then?

 

[yorkiesteve]

My wife's car, a Holden Commodore had what sounds like a similar issue and this did indeed turn out to be her heater matrix. Dead give aways to this fault are no heat ( obviously ) in cabin, strong smell of coolant, and badly fogging of windscreen.
As a reference here is a pic of K11 with dash removed, it literally t

akes six bolts to get to this and is maybe half an hours job. Hardest part would be removing the steering wheel if you don't have a puller ( but they are cheap, and useful )

 

[Machinehead]

Lube the cables while you're in there too, you'll be surprised at how much difference it makes to the controls


Sent from my iPhone using Tapatalk

 

[r-reg-sr]

i wouldnt be fingering anything at the minute without checking head gasket first
got to be said i tell you

 

[GeorgeG]

Does anyone know how much more the ac heater matrix weight or if does worth to replace it with a non ac heater matrix