Service life of the exhaust system (Mercedes-Benz E-Class W210)

The service life of the exhaust system depends on the operating conditions. When driving mainly short distances, condensation, soot and aggressive acids form inside the system to a greater extent than when driving long distances with a well-warmed engine.

1. The exhaust manifold with the catalytic converter is the least susceptible to corrosion compared to other parts, since exhaust gases pass through here at temperatures from +800°C to +1000°C.

2. In the resonator and muffler, the exhaust gases are cooled down significantly, their temperature reaches +150...+300°C. The muffler accumulates the most condensate. It mixes with the remains of fuel combustion to aggressive acids, which "eat away" the metal of the muffler from the inside.

3. The front components of the exhaust system can be damaged by temperature stresses during long trips, when rain gets on hot metal. In this case, the material may break or break.

4. Splashes of water and road treatment fluids in winter promote corrosion from the outside. Impacts from rocks or hard ground also shorten the life of the system, as does vibration from a damaged muffler suspension system.