Car is Overheating now on 2001 BMW 325i

Just replace water pump and belts, NOW, my car is overheathing. Any idea, what cause this?

Asked by for the 2001 BMW 325i
If it has a serpentine belt, make sure you installed it correctly, if it is wrong, the water pump may spin backwards, and not work correctly. Some cooling systems can get a large air pocket in them after the system has been opened, and this can cause overheating.
Thank you for your help. I check everything and it seems to be fine, but, still my car is overheathing after I use the car for a little while (10 minutes of driving)
2 answers 1 comment
Just found this site but just in case you are still in trouble w/ overheating, mine was the resevoir - it had a tiny crack where the coolant was leaking out.