• Professional Automotive Working HoursMon - Fri: 7:30 am - 5:30 pm
  • Professional Automotive Address19 Mechanic St,
    Marlborough, Ma 01752
  • Contact Professional Automotive(508) 485-8633

Are you constantly topping up your BMW’s coolant? It might be trying to tell you something: that there’s a leak. A coolant leak happens when the liquid that is in the cooling system that circulates through the engine escapes from its intended path into places it was not meant to be. Coolant (or antifreeze) helps to control your BMW engine’s temperature by absorbing heat and releasing it in the radiator. A coolant system leakage may cause a number of issues, like engine overheating, and can potentially cause a complete engine failure if it is not repaired quickly. Continue reading to find out some of the warning signs of coolant leaks that you must not ignore.

Warning Signs of a Coolant Leak

  • Low Coolant Level: A common symptom of coolant leaks in a BMW is a low coolant level in either the reservoir or the radiator. If you discover that you need to top up the coolant on a regular basis, it may be a sign of a leak somewhere in the system.
  • Visible Leaks: Check around your BMW for puddles or traces of coolant when the car has been parked. Coolant is the most commonly used antifreeze, and it is easy to identify because it is brightly colored— often green, orange, or pink. If you find any signs of coolant on the ground, you should investigate the cause of the leak.
  • Overheating: A rising coolant temperature gauge or an overheating warning light on the dashboard may mean you have a coolant leak. If the coolant flow is not sufficient to cool the engine down, it is like not having a regulator and this leads to overheating.
  • White Exhaust Smoke: If coolant enters the combustion chamber, it will mix with fuel and burn, producing white exhaust gas from your BMW’s tailpipe. This smoke means that some coolant is leaving the cooling system. Prevention is better than cure, so it is best to deal with the issue now before it gets worse.
  • Sweet Smell: Coolant gives off a particular sweet smell. If you smell this scent either inside or outside your BMW, it could be a warning sign of a coolant leak. Do not let this problem slide as it might end up causing more issues than just a sweet smell.

What To Do If You Suspect a Coolant Leak

If you see any of the symptoms of coolant leakage specified above, then make sure you act quickly to deal with the problem. Here are some steps you can take.

  • Inspect the Cooling System: Manually examine the hoses, connections, radiator, and water pump for any signs of leakage or damage. Check for wet spots or stains from the coolant.
  • Top Up Coolant: If the coolant level of your BMW is below the ‘low’ mark on the gauge, add the correct type of coolant for your car to the radiator. Make sure you add the right amount and don’t overfill the system.
  • Address the Leak: The type of repair and cost involved will vary depending on the severity of the leak and its location. Whether it is a minor or a more complex problem, make sure you get it fixed correctly.
  • Visit a Mechanic: If you can’t diagnose or repair the coolant leak by yourself, the only option is to let a professional mechanic or BMW dealership take care of it. Professional knowledge and diagnostic tools are available for them to repair the problem in the correct way.

Get Help From Our Trusted BMW Specialists

At Professional Automotive we are BMW Coolant Filling the leading repair shop for BMW owners in the Marlborough MA area. Our mission is to develop a community of happy customers who feel at home when they bring their cars to us. If you notice some signs of a coolant leak in your car and you want a BMW specialist to trace the problem, we are here for you.

Our ASE-certified technicians will make sure that the best tools are used to run the diagnosis and repair. Book your appointment with us right now, and together we will make sure that your BMW will be in excellent shape for miles to come.