Funny thing happened today. For the first time in well over six months
it was warm
enough to drive with the heating turned off in my '96 328i. In fact I
E30 will leave it's hibernation in the garage soon :-)
Anyway, I noticed after about 50 miles the temp gauge was just above the
Turned the heater on half way and it was fine. Check the coolant and it
heater blew nice and hot so there must have been plenty coolant in it.
miles home with the heater half on, no problems.
About a month ago the car blew the coolant hose from the back of the
head to the
heater. I had to very gently drive about 18 miles (mostly down hill)
but it was -12C outside and I kept the coolant topped up, car never went
red zone as I stopped quite a bit to let it cool (with the bonnet open
on a freezing
night). I even drove with the bonnet open and hooked on the safety catch
airflow to the engine. Car has been fine since, used no coolant and no
But I've always had the heater on.
If there were any head gasket / head warping I'd surely be losing
if the cylinders were pressurizing the cooling system (had that on an
M60 and an
I replaced the thermostat a year ago incidentally.
So I'm thinking it might be a failing water pump? Pretty sure I have the
the metal shaft and plastic impeller. When these fail do they do so
or might they just slip a bit and cause my problem?
Can't see it being the viscous coupling, it was only about 18C today and
I was doing
I'll give the radiator a good hose off in case there's lots of winter
the cooling fins. But failing that I'm thinking water pump. If I'm not
coolant then the head must be fine surely?
Any thought other than replace the water pump?
Who needs a life when you've got Unix? :-)
Email: email@example.com, John G.Burns B.Eng, Bonny Scotland
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