Tomscar
Member
Hi folks, I have been round all the threads and can't find an answer to this issue, maybe some one has experienced it and can point me in the right direction.
My car is a 1.4 SE petrol with a BBY engine.
There is no hot air into the cabin at all ... the problem was a gradual build up, I noticed that the air from the vents wasn't as hot as it used to be during the cold weather and now it only blows cold air. Reading other threads I suspected it was the thermostat and or the sensor. I don't have VCDS so can't scan for faults.
What I've done so far:
I changed the thermostat housing yesterday as there was a slight leak from the junction with the 'death pipe' and also from where it meets with the engine block.
No leaks now, so there is a new thermostat and temperature sensor installed as part of the kit.
Temperature is getting to and sitting at 90 degrees on the dashboard readout.
The bottom radiator hose is getting hot when the thermostat opens.
All the vents and combination of vents feel like they are working and blow with plenty of force.
The pipe that feeds the heater matrix from the thermostat housing is getting hot but the return pipe is still cold.
I'm guessing at an airlock but can't see anywhere that you can bleed the matrix.
I've had the engine running today for about fifteen minutes with the expansion cap off looking for air bubbles but all I can see is a steady flow back into the tank.
So, kind folks and with thanks in advance ... anyone come across this or give me any pointers ... no rush as I've got instructions from Mrs B to cut the grass ?
My car is a 1.4 SE petrol with a BBY engine.
There is no hot air into the cabin at all ... the problem was a gradual build up, I noticed that the air from the vents wasn't as hot as it used to be during the cold weather and now it only blows cold air. Reading other threads I suspected it was the thermostat and or the sensor. I don't have VCDS so can't scan for faults.
What I've done so far:
I changed the thermostat housing yesterday as there was a slight leak from the junction with the 'death pipe' and also from where it meets with the engine block.
No leaks now, so there is a new thermostat and temperature sensor installed as part of the kit.
Temperature is getting to and sitting at 90 degrees on the dashboard readout.
The bottom radiator hose is getting hot when the thermostat opens.
All the vents and combination of vents feel like they are working and blow with plenty of force.
The pipe that feeds the heater matrix from the thermostat housing is getting hot but the return pipe is still cold.
I'm guessing at an airlock but can't see anywhere that you can bleed the matrix.
I've had the engine running today for about fifteen minutes with the expansion cap off looking for air bubbles but all I can see is a steady flow back into the tank.
So, kind folks and with thanks in advance ... anyone come across this or give me any pointers ... no rush as I've got instructions from Mrs B to cut the grass ?