neff
Member
- Posts
- 75
- Location
- West Midlands
For some reason I have no heat coming from my vents on my 300tdi disco.
I recently had the head re-done and assumed that I had an air lock in the heater matrix so flushed the coolant and made sure the matrix had water flowing through it. This brought the heating back for all of a day. Parked up at a stupid angle (uphill) to make sure that the header tank was higher than the heater matrix and ran the engine with the thermostat bung out for a bit - this got the heaters hot again but has only lasted a week or so before they go cold again.
I'm not losing any coolant but I've recently had the canaries return to living under my bonnet.
I'm swaying towards the water pump being on it's way out - with the thermostat bung out and the engine running I would expect that water would gush out of the thermostat - but it just gently bubbles, only gushing out if I take the lid off the expansion tank.
Does this sound like the water pump is on it's way out or am I barking up the wrong tree?
I recently had the head re-done and assumed that I had an air lock in the heater matrix so flushed the coolant and made sure the matrix had water flowing through it. This brought the heating back for all of a day. Parked up at a stupid angle (uphill) to make sure that the header tank was higher than the heater matrix and ran the engine with the thermostat bung out for a bit - this got the heaters hot again but has only lasted a week or so before they go cold again.
I'm not losing any coolant but I've recently had the canaries return to living under my bonnet.
I'm swaying towards the water pump being on it's way out - with the thermostat bung out and the engine running I would expect that water would gush out of the thermostat - but it just gently bubbles, only gushing out if I take the lid off the expansion tank.
Does this sound like the water pump is on it's way out or am I barking up the wrong tree?