05 Cordoba 1.4tdi new heat exchanger no heat!

[richiet90]

Hey everyone, i had the misfortune of badly leaking heat exchanger on my 1.4tdi, it was looped out by P/O and i rejoined it and it flooded the car! so i have swapped it out for a new non o.e unit.

It appears to be leak free now from what i can see with it back in place.

I took the car for a test drive and the gauge on dash board reading 90C but my air from dash is lukewarm at best!

The two heat exchanger pipes are hot definitely hotter than the air being pushed out.

The hose from the thermostat housing is cold though im not sure if there is a thermostat in there maybe stuck open? will this have a large effect my heater?

The only other thing i can think of is the pipes to the heat exchanger are mixed up as i had to take a stab in the dark with them.

Please help i need heating its cold!