Anyone else have this problem?
It's very annoying. I have a new pump, just need to do
a coolant change and swap it out.


-------------------------------UPDATE--------------------

with a lot of fanageling, I replaced the electric pump.
New one has a faint hum, but huge improvement from before.

I lost about 3/4 gallon coolant, so I replaced it with blue BMW
Coolant. When it warms up a little I will do a coolant drain, rinse
and refil.

Now I have an operating Pierburg electric pump, that is very serviceable
but a little noisy.
If you need one, and got low funds, I can help.

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2003 4.6is X5
2003 525it
2003 E53 X5 Standard shift