Where is this water coming from?

November 12th, 2021 by

Mercedes-Benz London’s

Service Tips & Tricks

Your vehicle leaking fluid onto your driveway is usually not very serious. Often it’s just condensation from your A/C, pooling near the back of your engine then down your front tires, or from under the tailpipe. Sometimes however it can be serious, which is why we’ve explained the different signs and when to come in to see our experts at Mercedes-Benz London.


Identifying the Cause of Water Leaking from Under Your Car

Whether your car is leaking water or your car is leaking another fluid, read our handy guide to get the bottom of whatever issue is causing the fluids leaking from your car. The first thing you need to do is:

  • Take a sheet of paper and place it under the leak. Verify that it is clear like water. If it even has a hint of some other hue, it may be something other than water.
  • If a considerable amount of water is coming from your exhaust, you probably blew a gasket. In this case, that large amount of water will usually be accompanied by white smoke. That’s because coolant is leaking into your combustion chamber and being burned along with the fuel.
  • If there’s a possibility that you’re leaking coolant, you can double-check by examining your coolant levels. If they’re low, get your car over to our service centre pronto.
  • Your leak could also be windshield wiper fluid. Oftentimes, your wiper fluid reservoir will crack during the winter. If this is the case, you’ll find a light green or blue fluid pooling by your front tires.

What Fluid is Leaking from My Car?

If you found that the fluid leaking from your car wasn’t water, follow our colour glossary for help with determining what type of fluid your car is leaking:

  • Orange – Transmission Fluid or Radiator Coolant
  • Yellow – Radiator Coolant
  • Blue – Windshield Wiper Fluid
  • Red – Transmission Fluid or Power Steering Fluid
  • Pink – Power Steering Fluid or Transmission Fluid
  • Dark Brown – Brake Fluid or Older Engine Oil
  • Green – Antifreeze from Water Pump, Hoses, or Radiator
  • Light Brown – Newer Engine Oil or Gear Lubricant

Reach Out to Our Service Department for Help

Now that you’ve likely got a better idea of what type of fluids are leaking from your car, if you’re not so sure that the water leaking from under your car really is water, reach out for help. If your car is leaking fluid, Mercedes-Benz London can figure out exactly what issue you’re having. Simply call our service department at service tips and tricks for other helpful reads about how to change a flat tire and more!