Q: When I poor coolant into my BMW radiator it emptys right away and there is no leaks

asked by on October 24, 2017

When I poor coolant into the radiator it emptys right away but I don't have any leaks
My car has an automatic transmission.

If you keep pouring in coolant and it is disappearing without any external leaks after two gallons of coolant then you have an engine problem or heater core is leaking into the a/c housing. Check inside car to see if any coolant is leaking on floor in front under dash. If none and no smell of coolant inside car then the engine head gaskets are leaking into the motor. Check to see if oil level is overfull and looks milky where oil and coolant is mixing? If it is mixing then you will need to have engine gaskets and head checked for leaks.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

It's run and everything but motors leaks oil I keep putting oil in and it keeps running but what do you think the problem is
Most likely it is a gasket that is leaking. To accurately locate the leak, a visual inspection of the engine is required. Oil leaks can be hard to find, especially if the engine is very dirty. I suggest cleaning the...
Timing belt or chain in my Nissan?
Hi there, thanks for your question. This model has a cam driven timing chain, so you should not need to worry about changing the belt at certain intervals. Just be sure to have regular oil changes performed.
Magnet stuck on spark plug.
I do not have a vehicle listed so I am not sure how to guide you. but depending on the location of the spark plug hole, he may be able to use needle nose pliers to go into the hole...
My air conditioner is not working , but my heater is , what can be the problem
Hello. Thank you for writing in. The A/C (https://www.yourmechanic.com/services/heating-ac-inspection) system and the heating system have relatively little to do with each other. They share a blower motor, and climate control switches. With the heater working we can assume that these...
The temperature gauge is fluctuating but not over heating, I have changed the thermostat, the sender, and it still dose the same
Hello, thank you for writing in. The vehicle's cooling system may be having more of a technical error. With the sensor and thermostat both giving correct measurements, the issue is an actual temperature fluctuation. This can also be caused by...
Will a faulty crank position sensor affect my auto trans function? 2003 Dodge Grand Caravan
Hello - No, the crankshaft position sensor will not affect your transmission at all - except when it fails, and the engine ceases to run. Check your transmission fluid for the correct level and condition (pinkish, with no burned smell)....
Valve cover gasket leaking
Anytime you have an oil you should have the repairs needed as soon as possible. An oil leak getting on the hot exhaust can cause an increase risk of fire and also leaking oil can damage components and wiring harnesses....
Car sounds like golf cart when revving and braking; also leaking fluid; sound fades as car warms up
Hello, There are a number of things that could make an engine noisy when starting up. Depending on the specific type of sound you are referring to, this will determine how to properly diagnose. If there is a bit of...
Question
Scion models, as a Toyota "brand", were discontinued in August, 2016. All 2017 Scion models that carried forward were marketed under the Toyota brand. To discuss the historical reliability data of discontinued Scion models versus "Toyota" in general, or versus...

Related articles

How Long Does a Cooling Fan Relay Last?
The The purpose of the cooling fan relay is to pull air through the A/C condenser and the radiator. Most vehicles have two fans, one for the radiator and one for the condenser. Once you turn on the air conditioning,...
How to Quickly Cool Down a Hot Car
Knowing Knowing how to cool off a hot car that has been sitting in the heat and sun can save you the discomfort of having to sit in your vehicle's hot interior while driving to your destination. By taking a...
Top Automotive News & Stories: October 1-7
BMW i5 images leak, an ultra-lux Jeep, hydrogen-fueled Colorado ZH2, Fisker's electric future, record plug-in sales, NHTSA Road to Zero, and more.