How to Check Coolant Levels


Oakville and Milton drivers frequently ask our Mercedes-Benz Burlington mechanics, “what is coolant?” Coolant is a liquid that helps to transfer heat across your engine block and regulates your engine’s temperature so that it doesn’t overheat. Too much heat can cause catastrophic engine failure, so it’s crucial that you’re regularly replenishing your coolant.  If you’re unsure of how to check your coolant level and top off your reservoir, read our guide. If you come up against any obstacles, don’t hesitate to take your vehicle into a centre. Our service specials make this maintenance very affordable.

What to Look for

Open the hood of your car. The reservoir for your coolant is on your radiator. It should be labelled, but if it isn’t, consult the owner’s manual for your vehicle in order to locate it. Check the markings along the side. If it is below the “full” line, then you should remove your radiator cap and fill it up with a mixture that is 50% coolant and 50% water. That said, many coolants are premixed with water, so be sure to double-check.

While you’re under the hood, Mississauga and Hamilton drivers should inspect the hoses extending from the radiator to ensure that there aren’t any leaks. Now that you have answers to the question, “what is coolant?” and know how to check your coolant levels, let’s take a look at the signs that you should take your vehicle into our garage.

When to See a Service Technician

In terms of consistency, your coolant should be thinner than oil and thicker than water. If your coolant appears “mucky” or “sludgy,” take your car in immediately. This indicates a probable leak in a gasket. If all of your coolant leaks out, your engine will overheat, in which case, you can expect to buy a new car—not to mention, it isn’t safe to drive when you’re at risk of catastrophic engine failure.

Get More Service Tips from Mercedes-Benz Burlington!

Now you know how to check your coolant levels and you know what coolant is. If you have any more questions, we’re happy to answer them for you, and we can always handle this service if you don’t feel up to it yourself. You don’t even need to schedule an appointment as our express service team can handle this in a jiff. If you suspect you’re having more holistic radiator issues, be sure to get in touch with our parts department.

More From Mercedes-Benz Burlington

  • 2022 EQS Price & Specs

    Wondering how much a Mercedes-EQ electric car costs? The EQS is available in the one trim, the EQS 580 4MATIC sedan, and the EQS price in Canada is $146,500 (MSRP)*. With an AIRMATIC® air suspension, intelligent navigation, and more, the EQS innovates in every category. Take a moment to learn more about the track-ready specs…

  • 2022 Mercedes-Benz GLC Dimensions

    If you’re looking for a roomy luxury midsize SUV near Oakville, take a moment to learn about the Mercedes-Benz GLC dimensions and Mercedes-Benz GLC cargo space. Then, apply for financing and contact Mercedes-Benz Burlington to schedule for a test drive in Burlington! Current OffersGLC Inventory Mercedes-Benz GLC Interior Dimensions With seating for 5 Milton passengers, the…

  • 2021 Mercedes-Benz GLA Interior

      Are you shopping for a luxury crossover near Oakville? You’ll want to take a look at the Mercedes-Benz GLA 250 interior. Complete with premium materials and futuristic technologies, it has everything you could want from a top-shelf SUV. The Mercedes-Benz GLA dimensions are also quite impressive. Take a moment to learn about some of…



Your garage is empty.
Save some vehicles to get started!
Schedule Service
My Garage


Your garage is empty.
Save some vehicles to get started!
Chat With Us
Mercedes-Benz Burlington 43.3239022, -79.851676.