You can remove the cover in situ, unclip it from around the cables then along its length, its not easy but do able. If your not happy doing that, disconnect the battery, remove the connector then take off the cover, insert the connector, connect the battery. The cover can be replaced in situ. pgeddes79 Discussion starter. billy_bunter Discussion starter. 13 posts · Joined 2006. #1 · Mar 8, 2010. My wifes 99 astra has heater blower fan just packed up. no air con on the car. The dial moves and clicks correctly but the motor refuses to spin. Engine seems ok and there is no loss of coolant. No airlock as was working fine before. Checked Fuses all seems OK.. It comes from a device in the fuse box called the multitimer. This device also supplies power to all other bulbs that are controlled by the dimmer, such as the heater controls and info display. As these are working, you can safely say the multitimer is OK. This is probably a problem hanging over from when you removed the digi-dash from the car Service Engine Soon – Other than the heater not working, the only other symptom of P0128 is typically the service engine soon light itself. Slight Decrease in fuel economy – The P0128 code may also lead to a slight decrease in fuel economy. This is because your Astra’s engine is running at a cooler temperature than it should be. (3) Work the leather up so you expose the seat back. The heating element will be right there in the lower back section. Peel it off the cushion. (4) Follow the wires down under the seat and undo two plastic clips. (5) Stick the new element on and route the wires underneath and plug it back in. (6) Your seat heaters should work again. Opel Astra Heater. Asked by Zibusiso Sep 17, 2014 at 06:31 AM about the 2001 Opel Astra. Question type: Maintenance & Repair. i have an opel astra 2.0 2001 model, the heater in this car does not work. what might be the problem. or is their a part that i have to replace. In this video, we take a look at replacing the broken heater control panel, in a 2006 Vauxhall Astra Bertone Convertible, one of the last Astra Gs built. The HQiV.