[Miami Bimmer06]

DOES THIS MEAN MY RADIATOR IS LOW ON FLUID, i SEARCHED THE MANUAL BUT DIDNT FIND NOTHING CORRESPONDING TO THIS.

[STE92VE]

Yes, refer to your manual on how to check the coolant level. Make sure your engine is cold.

Coolant
Do not add coolant to the cooling system
when the engine is hot. Escaping coolant
can cause burns.<
Coolant is a mixture of water and an additive.
Not all commercially available additives are suitable
for your BMW. Ask your BMW center for
suitable additives.
Only use suitable additives, otherwise
engine damage may result. The additives
are hazardous to your health.<
Comply with the appropriate environmental
protection regulations when disposing
of coolant additives.<
Checking coolant level
1. The engine must be at ambient temperature.
2. Turn the cap of the expansion tank a little
counterclockwise to allow any accumulated
pressure to escape, then continue turning
to open.
3. The coolant level is correct if it is between
the maximum and minimum marks in the
filler neck, refer also to the diagram next to
the filler neck.
4. If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
5. Turn the cap until there is an audible click.
6. Have the reason for the coolant loss eliminated
as soon as possible.

[txusa03]

I think you hit the nail right on the head. Here is your choice, 1) when engine is cold, pop the bonnet and open the radiator cap and see how far the needle stick up (I repeat, you must do this when engine is cold or you will burn your self). 2) if you not the adventurous type then just take your car to the dealer and have them check it out.

I got one of those before...see my photo for proof...GL.

[bronco]

Where did that coolant go? You need to have it checked!!!

[RiXst3r]

Driving bmw's for 10 years, I have never needed to add coolant... thats odd, maybe there is a leak?

[txusa03]

Originally Posted by RiXst3r

Driving bmw's for 10 years, I have never needed to add coolant... thats odd, maybe there is a leak?

You just been blessed...

A leak can cause coolant to drop, water pump not working can also cause coolant to drop. Your coolant system is also desinged to release build-up steam. If you take water and you boil water and let it boil, sooner or later, the water will dissipate (spelling) and run dry I know coolant is not water but it is still a form of fluid which under goes extream high temperature.