As any driver can understand, what exactly broke in the car, even without knowing his device
A modern car is a very complex technical system, managed by an on-board computer. However, even the best cars sometimes break down. At the same time, it is sometimes very difficult to diagnose them and identify faults. But to identify the problems of the "iron horse", using only his senses, can almost any driver.
In the search for problems with the car a person is well helped by his feelings. So, even the most inattentive driver will smell the smoke. Exhaust gas inside the cabin should be cause for concern. Most likely, there is an exhaust leak somewhere under the bottom. In this case, it is not necessary to continue driving in the car, because carbon monoxide, which is collected in the cabin, can cause loss of consciousness and even death.
The smell of gasoline or oil usually indicates that one of these liquids is leaking. Gasoline can flow from the tank, as well as from under the leaky hose clamps, forming smelling puddles on the pavement. And the oil begins to drip from the seals in the worn engine and the joints in the suspension.
Coolant (antifreeze) has a clearly distinguishable sweetish smell. It may appear in case of leakage from the system, as well as overheating of the motor.
In the event of failure of the catalyst, there is a lack of purification of exhaust gases, and they smell of sulfur. It can also smell a battery that works under excessive load.
The smell of burnt wood or rubber can mean one of several problems. The reason may be a long braking, driving with a tightened handbrake, jamming the brake caliper, burnt clutch.
If the car began to smell like mold or old socks, then you should check the cabin filter, as well as the lack of water under the floor mats.