306 no heat inside?!

I have an M reg 306 XLD 1.9 diesel. I can't get any heat out of the system.
I have flushed out the radiator and replaced the water/antifreeze but that
didnt help, I have opened the bleed holes to get rid of air but still no
heat inside. Is there possibly valves that can bypass the heater matrix? It
is interesting that the pipes leading to and from the matrix both get hot
but it appears no hot water is getting to the matrix....

can anyone help?

Thanks,
Simon

 

Can anyone offer any help?

Simon

 

Sorry you've had no replies. I've had the same problem for the past year.
What I've recently done is flushed it through again, but this time, removing
the 2 heater hoses. Then attach a garden hose to the OUTLET pipe, turn on
the hose, and put your finger over the other pipe to build up a bit of
pressure, then release it and see if more brown water comes out. It looks
like my heater matrix is blocked and this is how to unblock it. SInce I did
this a week ago, the heater is better, but still not up to scratch. I will
do it again and again, and hopefully get the heater back to normal. You say
your ipies are both hot, but try putting the heater on hot, then switch the
fan on full and see if the outlet one cools significantly, this was the case
with me, indicating that not a lot of water was circulating in the matrix.
Remember to flush the matrix out in the reverse to the normal flow. Let me
know how you get on,

Neil

 

are the cables working?- sounds to me as if the water valve isn't opening.

 

only one of the 2 pipes is a supply pipe, the other is a return pipe
(obviously) so if they are both hot.....well you work it out....yes the
water is flowing through the matrix.....check the vent flaps are working
correctly and assuming you have bled it correctly that there is no trapped
air in the matrix...although as mentioned before...if both pipes are
hot...seems like it is flowing ok...