General description of the exhaust system The exhaust system consists of a front pipe with a catalytic converter, an additional silencer and a main silencer (see illustrations 1.0a, 1.0b, 1.0c). Gasoline engines with variable catalyst have an oxygen sensor...
The principle of operation of the catalyst The catalyst consists of a ceramic monolith 3 having a honeycomb structure, covered with a protective layer. The protective layer contains noble metal salts, which ensure the exhaust gas cleaning process. Catalyst...
Servicing vehicles with a catalyst To avoid damage to the lambda probe and catalyst, the following recommendations must be strictly followed: Gasoline engines A) Refuel with unleaded gasoline only; b) Forced starting of a warm engine by pushing or towing...
Exhaust system — leak test On vehicles with an adjustable catalyst, leaks in the exhaust system in the part located in front of the oxygen sensor can lead to the following malfunctions: A) difficulty starting the engine; b) engine shaking at...
System of release of the fulfilled gases — removal and installation Removing Attention! All parts of the exhaust system can be replaced individually. Attention! When reinstalling the parts of the exhaust system, ensure that they fit snugly together. Otherwise, when checking the CO...
Silencers — removal and replacement Despite the fact that the exhaust system is one-piece (except for vehicles with 1.4-/1.6-litre petrol engines (K4J/ K4M), mufflers and catalytic converter can be changed separately by cutting the connecting pipe at the...
Catalyst — removal and installation SCENIC vehicles with a 1.4-/1.6-litre petrol engine. Removing Attention! Removal requires a special tool RENAULT Tav. 1233-01 for lowering the base frame. 1 Disconnect the ground wire terminal (-) from the battery....
Lambda probe — removal and installation The lambda probe is designed to regulate harmful impurities in the CO of gasoline engines. It is installed in the exhaust pipe before the catalytic converter or on the exhaust manifold. The procedure for removing and...