Clear and watery
Water dripping near the front passenger side after using the air conditioning is normal condensation.
Green, pink, orange or blue, sweet smell
Coolant. Watch the temperature gauge and check the coolant level when the engine is cold. Coolant leaks can lead to overheating.
Brown or black, oily
Engine oil. Check the dipstick. Small seeps are common on older engines, but a steady drip or low oil level needs attention.
Red or reddish-brown
Automatic transmission or power steering fluid on many vehicles. Note whether the gearbox or steering feels different.
Clear to yellow-brown, slippery, near a wheel
Possibly brake fluid. Do not drive if you suspect a brake fluid leak or the pedal feels soft.
Safe to drive?
Suspected brake fluid leak, or a large coolant or oil leak with warning lights: do not drive. Small seeps: book in and keep an eye on levels.
General guidance only, not a diagnosis. If in doubt, do not drive it and have it inspected. In an emergency, call 111.
Who can help
Get quotes for car repairs near you
Questions
How do I tell where it is coming from?
Put a sheet of cardboard under the car overnight. The position of the spots, front, middle or rear, helps the mechanic.
What should I put in the job?
The colour, where the spots are, how big, and any warning lights or changes in how the car drives.