Petrol models
1.Measure the length (A) pipe end on a new additional muffler.
2. Transfer the resulting value to the additional muffler to be replaced and cut off the exhaust pipe in this place using a pipe cutter.
3. On models with engines M60, M62 and M73 remove additional (behind the main) muffler (see Section Removal and installation of system of release OG) and install a rubber-metal hinge on the new muffler to hang it on the rear axle beam.
4. On models with an engine M52 remove additional (behind the main) muffler (see Section Removal and installation of system of release OG).
5. Slide the coupling onto the new additional muffler so that the muffler pipe cut is in the middle of the coupling.
6. Connect the muffler to the exhaust system with a coupling.
Diesel models
1.Measure the length (B) pipe ends on a new intermediate muffler.
2. Transfer the resulting value to the intermediate muffler to be replaced and cut off the exhaust pipes at this point using a pipe cutter.
3. Cut both pipes between the catalytic converter and the intermediate muffler with a cutter along the weld and clean the cut. Sand off the remains of the weld on the intermediate muffler, remove the remains of the pipes from the pipes of the catalytic converter.
If pipe residue cannot be removed from the catalytic converter pipes, cut to the appropriate length the pipes of the new intermediate muffler.
4. The openings on the new catalytic converter are covered with a self-adhesive film - completely remove it.
5. Connect the new intermediate silencer to the catalytic converter using couplers.
Clamp nuts must face down.
6. Connect both additional mufflers.