BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. The engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
- 7. An exhaust system
   + 7.1.2. An exhaust system of cars 318i
   - 7.2. System of decrease in toxicity of the fulfilled gases
      7.2.2. Self-diagnostics of system of injection Motronic
      7.2.3. The processor block (block ESU)
      7.2.4. Gauges of system of automatic control of the engine
      7.2.5. System of compulsory ventilation картера (PCV-system)
      7.2.6. System of catching of steams of gasoline (EVAP-system)
      7.2.7. Katalitichesky neutralizer
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. A running gear
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice

7.2.7. Katalitichesky neutralizer

Katalitichesky neutralizer of engine M10

For decrease in emissions in atmosphere of hydrocarbons, carbonic oxide and nitrogen oxides all cars considered in a management, are equipped with the neutralizer providing at the expense of oxidation-reduction reactions decomposition of specified three components, transforming them in harmless nitrogen, carbonic gas and water.


Periodically check a condition of fastenings of the converter and its case. Be convinced of absence of leak of gases. Check up integrity теплоизоляционного the screen.

Safety measures

In order to avoid a neutralizer exit out of operation observe following rules:

1. It is forbidden to use этилированным gasoline.

2. Regularly check serviceability of systems of ignition and a food.

3. Car operation at faults in cylinders categorically is forbidden.

4. It is forbidden to switch off ignition at the big turns of the engine, or to stop the engine sharp pressing a pedal throttle заслонки at the switched off ignition.

5. The parking in places with inflammable subjects Is forbidden.

6. At serviceable power supply systems and ignitions the unit is calculated on run of 90-160 thousand in km. Under the maintenance WITH in exhaust gases it is possible to estimate a converter condition approximately.

7. "The sulphurous" smell from an exhaust pipe on the new car is supposed.