Heater in vivaro blowing cold air BUT not when revs up past 3000rpm. First thing to check is your heater matrix. From inside bonnet with engine cold remove the right side rubber hose connection coming out from bulk head. Then start the engine and see if the water pump on tick over pushes water through the matrix. If not and no water comes out the matrix is blocked. The matrix is only a small radiator and nothing else.
God damn i was searching for the solution for so damn long.... Why did not you name it something like "can't change airflow direction" or something like that.....? Btw thanks a lot!!!
@nathanlockett1622 did you ever get yours fixed? i had a garage replace the cable on mine and it stopped working again after a few days. the garage said the bit the cable connects to tends to seize up the older it gets. i've got an old old van and never got a solution. i did ask if it was possible to get some wd40 on the seized bit but they said no.
Hi , I got Vauxhall VIVARO 2010 , the heating is not working properly, it will not blowing warm air . Jut very little warm , Can please help me how to fix it please ?