Hi There! My name is XXXXX XXXXX I'm a BMW Tech!
There are two different pumps for your car, one is a higher pressure pump and is probably the one you need. I ran into this issue with a customer's 323i last year.
As for overheating, I'd look elsewhere especially since it's been in a wreck.
Thermostats are common failure points on E46 cars and I'm starting to see radiators fail as well.
Hi Nikki! How bad was the crash? Is everyone ok?
Do you have the VIN of the car at hand?
Thanks, XXXXX XXXXX be helpful!
Yes, I'm just checking some part numbers
How quickly is the car overheating? Right away or is it just after driving a ways?
Ok, that's it!
These cooling systems need to be bled in a specific order
otherwise they trap air and will overheat which is probably what you're observing
Haha, and here I have no idea how to work on Hondas!
Anyway, simple procedure:
Remove the radiator cap and the large bleed screw next to it.
Fill the expansion tank slowly until coolant pours out the bleed screw
close said bleed screw.
No, with the car off.
I'm sure there's a special tool for this but at my shop we use an old turkey baster to suck some coolant BACK OUT of the tank.
Just until the little red float stick is just above the top of the cap.
Then close the cap and go drive with the heat on. If the car doesn't make any heat, try it again!
That's for the overheating. The power steering pump is probably the wrong one unfortunately.
You're looking for either 32416760036 or 32411094965 BMW part #s
and while you're in there I'd replace all the hoses as well if you haven't already
There's a link to the pump part numbers and some of the hoses as well
You'll have to cross reference which one came out, there are two and I can't tell you which one you need from here
But if you can't figure it out, go for the Luk 30
it's the more powerful one and probably the one that's supposed to be in the car.
Like I said, I had the same situation on a 323i last year. The pump failed, I replaced it and it didn't work. Ordered the more powerful one and it was golden!
There's some more of the hoses
Between those two diagrams you should be able to cross-reference all the parts you'll need! And like I said, bleeding the coolant should help and if it doesn't, go after the thermostat. It is common to have them fail and they are easy to replace.
Good luck, let me know how it goes! I know how it is to be stuck without a car!
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Thanks and good luck! ~Brendan