Person Checking Coolant Levels 

Whether you're wondering, "what is coolant?", or you're trying to figure out how to check the coolant levels in your radiator, Nashua drivers are in the right place. First things first, coolant is the fluid in your radiator and is used to transfer heat and regulate temperature throughout your engine block. Engine coolant contains an additive that both ensures your engine doesn't drop below 32 degrees Fahrenheit and doesn't go above 212 degrees Fahrenheit. It obviously serves an important role in your vehicle's performance. 


Read on to learn about how to check your coolant levels to make sure you're regularly topped off. If you're running low, explore our service specials to see if you can save on your next change and schedule an appointment

What to Look for 

Now that Manchester drivers know what coolant is, it's time to learn about how to check your coolant levels. First, you'll want to turn off your engine and wait for it to cool down. Then pop your hood and find your radiator. You'll notice a reservoir of fluid attached to it. No need to open the radiator cap to check the levels. Just look on the side of the reservoir. There should be a line marking the "full" point.

If the coolant isn't below that level, top it off with a 50/50 mixture of coolant and water. Make sure to read the bottle of the coolant you use to see if it's premixed or not. While you're down there, inspect the hoses connected to your radiator for leaks. 

When to See a Service Technician 

Typically, your coolant will be thicker than water but thinner than oil. If it's sludgy, you need to get in touch with us ASAP. Your vehicle likely has an internal gasket leak. This means that your car is leaking coolant, which puts you at risk for overheating your engine and catastrophic engine failure. 

Let Audi Stratham Help! 

If Concord drivers have any lingering questions about what coolant is or how to check coolant levels, don't hesitate to give Audi Stratham a call at (603) 775-4044. You can also explore our site for more informative guides about how to check brake fluid, how often to change your air filter, and more!