Opel Vectra A

since 1988-1995 release

Repair and operation of the car

Vektr's Opel And
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. The fuel and exhaust system of models with system of injection of fuel
- 8. Exhaust system and system of decrease in toxicity of exhaust gases
   8.2. System of decrease in toxicity of exhaust gases
   8.3. System of repeated combustion of exhaust gases (EGR)
   8.4. The EGR valve (models with the Multec system)
   8.5. EGR valve (Simtec system)
   8.6. EGR module (X16 SZ models)
   8.7. Knot of the air pump (Simtec system)
   8.8. Valve of a cut-off of system of reduction of toxicity
   8.9. The switching-off valve of system of reduction of toxicity
   8.10. Tube and unidirectional valve of system of reduction of toxicity
   8.11. Catalyst
   8.12. A canister with coal
   8.13. The oxygen sensor (models with the catalyst)
   8.14. Final collector
   - 8.15. Exhaust system
      8.15.1. A reception exhaust pipe on models with the SOHC engine
      8.15.2. A reception exhaust pipe on models with the DOHC engine
      8.15.3. Forward muffler or catalyst
      8.15.4. Central section
      8.15.5. Back section
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
+ 15. Brake system
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions


8.15. Exhaust system



At installation of the exhaust system use new laying and sealing rings.

Problem of the exhaust system is removal of the fulfilled gases in the atmosphere so that they even in the minimum quantity did not get to interior of the car, and also reduction of noise of the engine to low level. That the exhaust system could perform the functions, it has to be in good repair. The condition of the exhaust system exerts impact also on the engine capacity and fuel consumption.


The exhaust system installed at the plant consists of four parts which replacement can be made separately.

On models with the catalyst in a reception exhaust pipe the oxygen sensor is installed. The catalyst is installed in a forward part of the exhaust system.

Before replacement of separate parts of the exhaust system it is recommended to check a condition of all exhaust system as it is often more favorable to replace all exhaust system, than to make replacement it periodically in parts.