Middle silencer failures

• housing surface defects;
• burning-out of the element;
• functional characteristics worsening;
• perforated pipes clogging.

Signs of middle silencer failures

• steady smell of exhaust gases in the passenger compartment;
• exhaust sound loudness increasing;
• strong vibration at engine rotation;
• appearance of soot traces at the car bottom surface;
• breakage of the catalytic converter or its melting;
• reduction of engine performance;
• significant increasing of the engine temperature;
• clunking during the middle silencer operation.

Causes of Middle Exhaust failures

• mechanical damages;
• breaking of the part metal component;
• overheating of the medium silencer;
• strong variations of temperature rates;
• inflow of moisture or oil into the system;
• road reagents impact;
• use of poor-quality fuel.

Diagnostics

Visual diagnostics of the Middle Exhaust can be accomplished without service station specialists assistance. It is necessary to pay attention to the presence of mechanical damages, traces of  soot, metal breaking and its oxidation. Any of these signs testifies to failure of the element. Detailed diagnostics of the resonator is carried out by skilled technicians. They check the operability of the resonator by means of the capacity and temperature rates analysis.

The service life of the silencer is 20 000 operational kilometers. The negative factors arising during operation can reduce life cycle by 50%. It is undesirable to exceed the recommended operation period. Wearing out of the spare part causes strengthening of vibration and increases the temperature of exhaust gases, thereby influencing operation of the catalyst converter.

Replacement of Middle Exhaust

As the component has the all-metal body, it can't be repaired. Damaging of the body integrity for repair purposes, will not lead to desired result but only worsen the condition of the part.

It is necessary to separate the middle silencer from the pipe to replace it. High temperatures may cause adhesion of the component to the fastenings. If it happened, it is necessary to use the specialized equipment and to cut off the part together with the fastenings. Resonator repair works are performed at a service station only.