Check of system of removal of the fulfilled gases external survey

1. To check reliability of fastening of collars.
2. To examine by means of a lamp lack of the openings which rusted and the wiped parts.
3. To replace strongly rumpled exhaust pipes.
4. To check twisting and extension rubber support for porosity, if necessary to replace.
5. Petrol engines: to check a cable a lambda probe. In the presence of damages to replace. The probe is screwed in in an exhaust pipe in front of the catalyst.