BMW engines tend to be fragile. If they've overheated, they tend to warp a head and even crack a block. If a head warps, the head gasket will leak and the engine will ALWAYS overheat. On the other hand, if it hasn't gone that far yet, you could have a problem with the thermostat, radiator, radiator fan /fan clutch (depending on what you have) or water pump. If it's the radiator, a good radiator shop can usually clean/repair it. A stuck thermostat is quite inexpensive and an easy repair. The water pump is a little more expensive. If you suspect the head gasket you can purchase a test stick that detects the presence of carbon monoxide in the coolant. If you detect carbon monoxide, the head is warped.
It is in the fuel tank.
inside the fuel tank
You can use Mobil 1 5w-30
were is the location of the ambient air temperature sensor for a 2001 bmw 330 i
in the glove compartment on top or at the back, all u have to do is open it
It is on the passenger side of the engine, right on top of the exhaust manifold.
The BMW 330i was introduced to the market in March 2005. Also called the E90 series. BMW car models are named very confusingly, you would think the the 330i would be in an E30 series or the E80 series would have been released in the 90's but that is not the case.
There is no oil dipstick in a 2006 330i.
On the inside of the frame rail on the drivers side. I believe the Napa # is 3228.
330i is a 4 door the 330Ci is 2 door.
The port closest to the firewall. Black twist off top.