330i Coolant light

[Sibs Individual]

Hi guys

Lately I've been having an issue with my car. The engine coolant light seems to always come on when revs go above 3000rpm. Its not overheating at all and have been pouring coolant and water.

Anyone have any ideas as to why this is happening?

Thanks.

 

[samman325]

Does the system require constant topping up?
Any signs of visible leaks?
Common areas to check will be the plastic expansion tank and water pump.
Doubt it will be a faulty sensor as that will be on from idle.

---

Is it E46 or E90?

 

[Sibs Individual]

Does the system require constant topping up?
Any signs of visible leaks?
Common areas to check will be the plastic expansion tank and water pump.
Doubt it will be a faulty sensor as that will be on from idle.

---

Is it E46 or E90?

---

its a e46.

Do the white splatters in engine bay have anything to do with it perhaps?

 

[S1NGH 001]

Does the system require constant topping up?
Any signs of visible leaks?
Common areas to check will be the plastic expansion tank and water pump.
Doubt it will be a faulty sensor as that will be on from idle.

---

Is it E46 or E90?

---

its a e46.

Do the white splatters in engine bay have anything to do with it perhaps?

---

White splatters mean you have a coolant leak :thumbdo:

Check all the radiator hoses, expansion tank :thumbs:

 

[Sibs Individual]

Does the system require constant topping up?
Any signs of visible leaks?
Common areas to check will be the plastic expansion tank and water pump.
Doubt it will be a faulty sensor as that will be on from idle.

---

Is it E46 or E90?

---

its a e46.

Do the white splatters in engine bay have anything to do with it perhaps?

---

White splatters mean you have a coolant leak :thumbdo:

Check all the radiator hoses, expansion tank :thumbs:

---

Okay cool will do and let you know. Thanks for the advice:=):

 

[SP33DYV]

White splatters definitely indicates a leak. Do a search, there are plenty threads regarding this.


Sent on the run from my iPhone using Tapatalk

 

[S1NGH 001]

Does the system require constant topping up?
Any signs of visible leaks?
Common areas to check will be the plastic expansion tank and water pump.
Doubt it will be a faulty sensor as that will be on from idle.

---

Is it E46 or E90?

---

its a e46.

Do the white splatters in engine bay have anything to do with it perhaps?

---

White splatters mean you have a coolant leak :thumbdo:

Check all the radiator hoses, expansion tank :thumbs:

---

Okay cool will do and let you know. Thanks for the advice:=):

---

What mileage is your car sitting at ?

 

[Sibs Individual]

Does the system require constant topping up?
Any signs of visible leaks?
Common areas to check will be the plastic expansion tank and water pump.
Doubt it will be a faulty sensor as that will be on from idle.

---

Is it E46 or E90?

---

its a e46.

Do the white splatters in engine bay have anything to do with it perhaps?

---

White splatters mean you have a coolant leak :thumbdo:

Check all the radiator hoses, expansion tank :thumbs:

---

Okay cool will do and let you know. Thanks for the advice:=):

---

What mileage is your car sitting at ?

---

currently its 115 000km

 

[S1NGH 001]

its a e46.

Do the white splatters in engine bay have anything to do with it perhaps?

White splatters mean you have a coolant leak :thumbdo:

Check all the radiator hoses, expansion tank :thumbs:

Okay cool will do and let you know. Thanks for the advice:=):

What mileage is your car sitting at ?

currently its 115 000km

From past experiences that seems to be the mileage where the cooling system starts getting temperamental on these cars :thumbs:

 

[Sibs Individual]

White splatters mean you have a coolant leak :thumbdo:

Check all the radiator hoses, expansion tank :thumbs:

Okay cool will do and let you know. Thanks for the advice:=):

What mileage is your car sitting at ?

currently its 115 000km

From past experiences that seems to be the mileage where the cooling system starts getting temperamental on these cars :thumbs:

i will definitely check on it and see if i can find the leak. i hope i do...

 

[SP33DYV]

It's usually the radiator or the expansion tank. Also check the expansion tank cap.


Sent on the run from my iPhone using Tapatalk

 

[Straight six]

a good radiator place can do a pressure test for you....that will indicate the leak...then take it form there.....:thumbs:

 

[Die_Miek]

It is probably the expansion tank, mine gave in at 108000km

 

[Gizmo]

Its the shaft seal on the water pump that is leaking, water leaks out onto the belt and is flung all over the front of the motor, seen it many times.
If you take the water pump pulley off and look at the back you will see signs of water leakage.

 

[Sibs Individual]

I will be replacing the expansion tank in that case. Then I will book the car in for a service with Gizmo in the next few weeks.:=):

 

[AcidBurn]

Its the shaft seal on the water pump that is leaking, water leaks out onto the belt and is flung all over the front of the motor, seen it many times.
If you take the water pump pulley off and look at the back you will see signs of water leakage.

was just about to type the same thing:thumbs::bravo:

 

[Yuben]

I had a similar leak and it was the thermostat housing

 

[Sibs Individual]

So gents, whats the worst that could happen to my car with this issue?

 

[speeddemon]

So gents, whats the worst that could happen to my car with this issue?

It will eventually start overheating cause the one thing will lead to another and before u know it you blow the head gasket or even worse you warp your head.
Fluid loss in the cooling system is not to be taken lightly.

 

[Sibs Individual]

Well I can smell the coolant while driving. I will fit a new expansion tank tomorrow. Thanks guys.

By the way, which is the correct coolant to use for a 6cylinder e46? Red, blue or green?