Note: For more information about the exhaust system, see Chapter 4.
1. The check should be carried out with a cold engine, so it is best to do it before the first trip of the day or no earlier than three hours after turning off the engine. Check the condition of the entire exhaust system, starting from the engine and ending with the cut of the exhaust pipe. Ideally, this check should be carried out with the vehicle raised and easily accessible from below. Jack up the car and place it on secure stands.
2. Check the pipes and their connections for exhaust gas leaks, severe corrosion and damage. Check the condition and reliability of fastening of all clamps and rubber suspensions of the system.
3. At the same time, inspect the bottom of the car for holes, corrosion. open seams and other defects that allow the penetration of exhaust gas into the vehicle interior. Seal all openings with a suitable sealant.
4. The exhaust system, especially its supports and suspensions, are often the source of rumbling and other unpleasant sounds. Shake and yank the pipes, mufflers and catalytic converter. If these components are in contact with bodywork or suspension parts, replace their fasteners.
5. Inspect the electrical wiring of the lambda probes installed on the exhaust pipes and behind the catalytic converter. If necessary, replace the wiring together with the sensors.
6. Inspection of the inside surface of the exhaust pipe allows you to determine the current operating condition of the engine. The composition of the deposits in the pipe indicates the quality of the engine settings. If the inside of the pipe is black and smoky, this may indicate that the power system needs to be checked.