Table of contents: Oil pan ↓ Oil leaking from filter ↓ Checkpoint ↓ Antifreeze ↓ Brake fluid ↓ Power steering fluid ↓
Puddles where the car is parked, traces of liquid under the hood or on parts in the lower part of the car indicate leaks and the need to find the cause. Sometimes it is very difficult to determine the location of the leak, especially if the engine compartment and the engine itself are covered in dirt. Oil or liquid leaks in the lower part of the car can be carried back by the air flow when driving and mislead as to the true location of the leak.
Oil pan

Oil may leak from the oil pan drain plug.
Oil leaking from filter

Oil may leak from under the oil filter.
Checkpoint

Transmission oil may leak from the axle shaft seals where they exit the differential protective boot.
Antifreeze

Antifreeze leaks can often be identified by these crystalline deposits.
Brake fluid

Brake fluid leaks leaving marks on the tire.
Power steering fluid

Leaks of hydraulic power steering fluid may develop from the fittings.