Q: Antifreeze emptying out fast

asked by on August 19, 2016

I put in a new thermostat, upper and lower hose in my BMW. But now my antifreeze is emptying out quickly, and I have to keep filling it back up. Do you know why my antifreeze keeps disappearing so fast?

Thermostat Replacement $157.20 - $759.78 Get a Quote
Coolant is leaking Inspection $94.99 - $114.99 Get a Quote

Hello. If this happened right after the work was done, then it is typically caused by a hose that is loose or the thermostat not being installed right. If you cannot see the leak, then the system will need to be pressure tested to find the leak. If you need to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to detect the leak and perform needed repairs.

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

What does the brake system Warning Light mean in a 2012 Ford Explorer?
The brake system Warning Light is located on the instrument panel. This light illuminates when the parking brake is engaged, when there is a problem with the brake system, or when the brake fluid is low. As soon as you...
How do I replace a remote keyless entry (RKE) transmitter?
If you want a new remote keyless entry (RKE) transmitter, you will need to purchase one at a dealership. If the new RKE transmitter is replacing a lost transmitter, the entire RKE system will need to be reprogrammed for all...
Slight knocking while driving
If your car has been leaking oil for an extended period and you hear knocking, it's possible that an engine bearing has either spun, or is about to spin in its bore. After fixing the oil leak (https://www.yourmechanic.com/services/oil-fluid-leak-inspection), I would...
Brake pedal vibration and noises in Honda Pilot
Basically, when you get loud noises and the brake pedal vibrates, one of two things is wrong--sometimes the rotors are worn. If the rotors are worn, you replace them. But, on those, a lot of time, the ABS system acts...
Black flakes in oil
It depends on where the black flakes are. If you are talking about when you change the oil and there are black flakes, then you will need to have them analyzed. If those are pieces of metal, it means that...
No crank at all, changed the starter & crankshaft position sensor still nothing.
Changing out parts for the no start may lead to replacing the correct part, but it may take a few parts and money. I suggest having a qualified mechanic come and diagnose the no start (https://www.yourmechanic.com/services/car-is-not-starting-inspection) by checking fuel pressures...
My Toyota Corolla 2015 EPS came on when I just drove about a minute from my house. The brakes of the car are hard
Hello, thank you for writing in. It sounds like you may have a voltage problem going on. I usually check the connection me at the battery first. If the battery connections are fine then the alternator and battery must be...
clutch stuck halfway.
Hello, the clutch system has a hydraulic and mechanical operation. You could have two issues. The hydraulics assist in releasing and applying the clutch. There is a pressure plate that reacts to the clutch pedal, if the pressure plate...
i was driving and my car all of a sudden turned off and i started smelling gas
Hi Angel. Thanks for contacting us tonight. Usually when your car stops running and you can smell gasoline, this means that either a fuel line has broken, the fuel pump stopped working or there is a problem with one of...

Related articles

A Buyer’s Guide to the 2012 BMW 3-Series
The The 2012 BMW 3-Series has been wildly popular in the US since it was first introduced in 1975. This series of luxury sedans sets itself apart from other luxury models with its superior performance and driving dynamics. No matter...
How to Buy a Good Quality Thermostat
While While many people are familiar with the major parts in their vehicle, there are all kinds of smaller parts that play a vital role as well. The thermostat is one of those parts that many don't think about, but...
Symptoms of a Bad or Failing Thermo Coolant Fan Switch
Common signs include engine overheating, the Check Engine Light coming on, and a broken or shorter signal wire.