Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
- 13. Fuel system of diesel engines
   13.2. General information
   13.3. Catching system паров fuels
   13.4. System of ventilation of a case
   13.5. Final collector
   13.6. System of repeated burning of exhaust gases (EGR)
   13.7. Turbonagnetatel
   13.8. Exhaust system
   13.9. Katalichesky converter
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






13.8. Exhaust system

GENERAL INFORMATION

Arrangement of rubber suspension brackets of fastening of an exhaust pipe

The exhaust system on all models consists of three parts: a reception exhaust pipe in which the catalyst is established, to an average part with the intermediate exhaust silencer and a back part with the exhaust silencer.

Fastening of average and back parts of an exhaust system is carried out with application of rubber suspension brackets. The reception exhaust pipe fastens through an arm to a transmission.

Problem of an exhaust system is removal of the fulfilled gases in the atmosphere so that they even in the minimum quantity did not get to car salon, and also decrease in noise of the engine to low level. That the exhaust system could carry out the functions, it should be in good repair. The condition of an exhaust system influences also engine capacity and fuel consumption.

Removal

PERFORMANCE ORDER
1. The exhaust system can act in film from the car as assembled, and by separate parts.
2. Before removal of any part of an exhaust system lift the corresponding part of the car and fix on supports or establish the car over a viewing hole.

Reception exhaust pipe

PERFORMANCE ORDER
1. Using wooden whetstones or a jack, support the catalytic converter or a reception exhaust pipe in its lowest point. Remove from a reception exhaust pipe the Lambda sensor.
2. Unscrew the nuts, fixing flange connections of a reception exhaust pipe with an average part of an exhaust pipe.
3. Unscrew the bolts, fixing an arm of a reception exhaust pipe to a transmission (see fig. An arrangement of bolts of fastening of an arm of a reception exhaust pipe to a transmission).
4. Unscrew nuts and disconnect a reception exhaust pipe from a turbonagnetatel or a final collector. Take a reception exhaust pipe from under the car.

Catalytic converter

PERFORMANCE ORDER
1. Unscrew nuts of flange connection of the catalytic converter with a reception exhaust pipe.
2. Unscrew a nut and take a coupling bolt from a ring, fixing the catalytic converter to an intermediate pipe.
3. Disconnect catalytic преобразо a vatel from an intermediate pipe and take it from under the car.

Back part of an exhaust system

PERFORMANCE ORDER
1. Unscrew a nut and take a bolt from the coupling ring, fixing a back part of an exhaust system to an average part.
2. Remove from an exhaust pipe rubber suspension brackets and take an exhaust pipe from under the car.

Exhaust system assembled

PERFORMANCE ORDER
1. Using boards, support the catalytic converter or a reception exhaust pipe in its lowermost point. Remove from a reception exhaust pipe the Lambda sensor.
2. Unscrew nuts of the flange connection, fixing a reception exhaust pipe to an average part of an exhaust pipe.
3. Unscrew the bolts, fastenings of a reception exhaust pipe fixing an arm to a transmission.
4. Using the assistant, release an exhaust system from rubber suspension brackets and take it from under the car.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal taking into account the next moments.
2. Remove from connecting flanges all traces of corrosion and replace sealing laying.
3. Check a condition of rubber suspension brackets of an exhaust system and, if necessary, replace them.
4. Replace consolidation on connection of average and back parts of an exhaust system.
5. On connections with coupling rings before connection of pipes of an exhaust system apply a thin film special paste for connection sealing.
6. At installation of an exhaust system leave a sufficient and uniform gap between details of an exhaust system and the body bottom.