gashy. 581 posts · Joined 2006. #2 · May 13, 2017. It should be located behind the glove box on the right hand side next to the centre console. And held in by 2 torxs bolts. Look for 2 cables coming off the motor itself going into the resistor. If your handy with a soldering iron then pay around £1 for the resistor itself and solder it onto

2515 posts · Joined 2015. #3 · Dec 20, 2019. I believe it's a common problem. Vauxhall changed the connectors under the seat for this reason. Sure there is a Technical service bulletin about it. Long time Vauxhall owner (well from 1986 anyway - lol). Currently driving an Astra-J 2.0 diesel auto.
collapsed hoses cause water flow constriction. with heater on full .-engine running. loosen the bypass pipe for the closed thermostat till only coolant flows no air bubbles. the engine cooling fan spinning fast enough. the water pump in good condition. the interior directional flaps motors or actuators working.
Internal heater has stopped working, only blows cold air. This happened a few times before but it would usually start working again. This time though it seems to be staying cold. Engine isn't overheating and both pipes going to the heater matrix get hot so there is a flow of coolant going into the matrix. Hot/cold flap is working, I stripped
take the glovebox out, 4 t20 screws i think adn the heater blower is at the back on the left, have a rummage around there check the filter at the same time. this might help http://www.astraownersnetwork.co.uk/showthread.php?120853-Oil-and-filters-change-Astra-H
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opel astra heater not working