Why is there water leaking under a new car?
2 Answers
There are two possible reasons for water dripping under the car chassis: 1) Air conditioning condensation water - most vehicles don't have water collection hoses underneath, so the condensation from AC operation drains directly from the chassis. 2) It could also be caused by damage to the windshield washer fluid pipe due to chassis scraping. Additional information about car chassis: 1) Introduction: The automotive chassis consists of four systems - the transmission system, running gear, steering system, and braking system. Its functions include supporting and installing the engine and other components, forming the vehicle's overall shape, receiving engine power to enable movement, and ensuring normal operation. 2) Main components: The transmission system typically includes the clutch, gearbox, universal transmission device, final drive, differential, and half shafts.
I recently encountered the same issue after buying a new car and specifically consulted a mechanic. It's very common for the chassis to drip water when using AC in summer—that's just condensate from the evaporator drain hole, located beneath the engine bay near the passenger side. Exhaust pipe dripping is also normal, especially during cold starts, as water vapor from fuel combustion condenses. However, be alert if the leaking fluid has color: coolant is usually green or pink with a slippery feel, while brake fluid resembles vegetable oil and feels sticky. Once I noticed a puddle under my car in the garage, dabbed it with my finger, and detected a sweet smell—turned out the coolant hose wasn't secured properly. Quick tip: blot the fluid with a white tissue. If colorless and odorless, no worries; if colored, immediately check pipe seals at a repair shop.
