Note. If necessary, each of the sections of the exhaust system can be removed individually.
Petrol models
M111
Details of installation of components of system of release of the fulfilled gases on models 163.136 (111 series engine)
7/2 - Clamp for fastening the rear section; 8/1 - Thermal protection screen; 8/2 - Bolts; 9/1 - Rubber suspension; 10 - Suspension bracket for the exhaust gas system on the transmission housing; 11/1 - Bolts; 11/2 - Nuts; 158 - Catalytic converter
1. Details of installation of components of system of release of the fulfilled gases on models 163.136 (111 series engine) shown in the illustration, which includes all references in the text.
2. Remove the heat shield (8/1).
3. Release clamp (7/2) fixing the rear section of the exhaust system, - the clamp is welded to the connecting pipe of the section.
4. Remove the rear section of the system from the rubber hangers (9/1), evaluate the condition of the latter, if necessary, replace.
5. Separate the front section of the exhaust system from the rear.
6. Remove the rear section and visually inspect the condition of the underbody heat shields.
7. Support the transmission and remove the rear powertrain mount (see chapter Engine).
8. Give nuts (11/2) on support bracket (10), - nuts must be replaced without fail.
9. Remove the front section of the exhaust system from the rubber hangers (9/1), replace the failed suspensions.
10. Turn out bolts (11/1) flange connecting the intake pipe to the exhaust manifold, - if necessary, replace the manifold nuts.
11. Remove the front section assembly with the catalytic converter (158) and visually assess the condition of the underbody heat shields.
12. Installation is carried out in the reverse order.
Attention! Disposal of failed catalytic converters must be carried out in compliance with legal regulations!
M112/113 (except ML 55 AMG)
Details of installation of components of system of release of the fulfilled gases on models with engines of series 112 and 113, except ML 55 AMG
7/2 - Clamps for fastening the rear section; 8/1 - Thermal protection screen; 8/2 - Bolts; 9/1 - Rubber suspension; 11/1 - Bolts; 11/2 - Nuts; 158 - Catalytic converter; G3 / 3 - Left pre-catalytic lambda probe; G3 / 3x1 - Contact connector for the wiring of the left pre-catalytic lambda probe; G3 / 4 - Right pre-catalytic lambda probe; G3 / 4x1 - Contact connector for the wiring of the right pre-catalytic lambda probe; G3 / 5 - Left post-catalytic lambda probe; G3 / 5x1 - Contact connector for the wiring of the left post-catalytic lambda probe; G3 / 6 - Right post-catalytic lambda probe; G3 / 6x1 - Contact connector for the wiring of the right post-catalytic lambda probe
1. Installation details of the exhaust system components on models equipped with 112 and 113 series engines (except ML 55 AMG), are shown in the illustration, which includes all references in the text.
2. Jack up the front of the car and place it on jack stands.
3. Remove the front suspension torsion springs (see chapter Suspension and steering).
4. Disconnect the electrical wiring from the sensors.
5. Remove the heat shield (8/1).
6. Release clamps (7/2) fixing the rear section of the exhaust system.
7. Remove rear section from hangers (9/1), - replace the failed suspensions.
8. Separate the rear section from the front and remove it from under the car.
9. Visually assess the condition of the bottom heat shields, replace defective components.
10. Give nuts (11/2) fastenings of the front sections of the exhaust system, - the nuts must be replaced without fail.
11. Turn out bolts (11/1) flanges connecting the intake pipes to the exhaust manifolds, - if necessary, replace the manifold nuts.
12. Remove forward sections in gathering with catalytic converters.
13. Installation is carried out in the reverse order.
Attention! Disposal of failed catalytic converters must be carried out in compliance with legal regulations!
Models ML 55 AMG
Details of installation of components of system of release of the fulfilled gases on models ML 55 AMG
6 - Nut; 12 - Bolt; 13 - Nut; 14 - Front sections of the exhaust system
1. Installation details of the components of the exhaust system on ML 55 AMG models are shown in the illustration, which includes all references in the text.
2. Release clamp (1) mountings of the rear section of the exhaust system, - the clamp nut must be replaced without fail.
3. Remove the rear section complete with muffler (2), evaluate the condition of the rubber suspensions (3 and 4), replace the failed components.
4. Disconnect from the main muffler (8) ground bus (7).
5. Loosen welded clamps (9) muffler mounts (8), - collar nuts (13) must be replaced without fail.
6. Separate the muffler from the front sections of the exhaust system and remove it from under the car, - damaged suspensions (10 and 11) replace.
7. Separate from final collectors and remove forward sections of system of release of the fulfilled gases.
8. Installation is carried out in the reverse order.
Attention! Disposal of failed catalytic converters must be carried out in compliance with legal regulations!
Diesel models
M612
Details of installation of components of system of release of the fulfilled gases on models 163.113 (612 series engine)
1 - Threaded plate; 2 - Suspension bracket for the exhaust gas system on the transmission housing; 3 - Self-locking nut; 4 - Rubber suspension; 5 - Rear section with silencer; 6 - Sealing cone; 7/2 - Mounting clamp; 8/1 - Thermal protection screen; 8/2 - Bolts; 9/1 - Rubber suspension; 111 - Three-function catalytic converter (TWC)
1. Details of installation of components of system of release of the fulfilled gases on models 163.113 (612 series engine) shown in the illustration, which includes all references in the text.
2. Remove the bottom section of the soundproofing.
3. Remove the heat shield (8/1).
4. Loosen the clamp welded to the connection pipe (7/2), separate the back section (5) exhaust system from the front and remove it from under the car.
5. Visually evaluate the condition of the bottom heat shields, replace the failed elements.
6. Release the spring connection securing the primary catalytic converter to the three-function (TWC - 111), - sealing cone (6) must be replaced during assembly.
7. Give nuts (3) support bracket (2), - nuts must be replaced without fail.
8. Supporting the front section of the exhaust system with a jack, unbolt the support bracket (2) from the transmission case.
9. Remove the front section of the exhaust system assembly with TWC (111) from under the car and visually assess the condition of the underbody heat shields - replace the defective components.
10. Installation is carried out in the reverse order.
Attention! Disposal of failed catalytic converters must be carried out in compliance with legal regulations!
M628
Information not provided.
Optional AMG package exhaust pipe - all models except ML 55 AMG
Installation details of the optional exhaust pipe of the AMG package, - all models except ML 55 AMG
A = 140 mm
H = At least 15 mm
1. Installation details of the optional exhaust pipe of the AMG package for all models except the ML 55 AMG are shown in the illustration, to which all references in the text refer - proceed in the order indicated in the illustration.
2. Remove the exhaust system (see above), failed components, replace.
3. Saw off the standard exhaust pipe at a distance A = 140 mm from the center of the weld, in the area of changing the diameter of the nozzle (arrow).
4. Cut the suspension ring studs (arrows).
5. Sticking self-adhesive foil on the rear bumper trim in the area of the decorative cover of the towing eye (arrow), make a cutout in the petticoat along its contour - the exhaust pipe should fit freely in the cutout.
6. Treat the edges of the cutout with sandpaper and varnish them.
7. Fasten the nozzle purchased from the AMG package to the rear section of the exhaust system - the overlap of the mounting clamp must be at least 50 mm.
8. Install the exhaust system and make sure that the exhaust nozzle is parallel to the bottom at a distance of at least 15 mm below the cut of the skirt.