e36 heating problem

haggis1066

Wrench Pro
Points
11
Location
edinburgh,kirkliston
Car
e36 316 saloon
hi my 1997 e36 has heating problems when my foot is down it blows out hot air and when i am idling it is blowing out cold air no matter how long car has been running anybody got any ideas i thought maybe heater matrix but really hope not thanks
 
This is really strange have you investigated it any further? Does the engine temps fluctuate much? Is the water pump ok?
 
This is really strange have you investigated it any further? Does the engine temps fluctuate much? Is the water pump ok?


if everything above is normal ,assuming there is water in the radiator expansion tank :lol: , check if the coolant thermostat is not stuck open ... or if its there!!!!
 
If the cooling system is similar to the six cylinder cars there's a bleed screw directly adjacent to the thermostat housing as well.

Does your car have the residual heat extraction thing which allows you to run the heater with the engine off for 1/2 hour or so. Apparently this can do strange things if it's faulty.
 

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