aimlesslee44

Thanks guys, it doesn't appear as if theres an airlock BUT whats happened now, only since I flushed the radiator (which I'm fast starting to wish I'd never touched) is that the heater cuts in and out at random regardless of whether its on auto or manual, the whole display goes out then lights up and goes hard out etc etc. Could this be just a coincidental electrical fault or have I muffed something with the radiator flush etc????

Thanks Bravo, I loosened the bleed valve but not until most of the coolant had been replaced, massaged the hoses and got quite a few bubbles out. Does the temp gauge read from the block or just the radiator?

1997 323i E36. I drained the coolant from the radiator via blue plug and top and bottom hoses, flushed radiator (not the engine block) and refilled via the reservoir with new coolant (50/50). It didn't appear to take as much as drained out howver have monitored temp gauge and its fine and reservoir level and its fine. Could I have an air lock? Would the temp gauge show this or is the sensor at the radiator only? Thanks