Muffler, Replacing - BMW 5251 Service Manual

/Exhaust System
Muffler, replacing
BMW offers individual mufflers as replacement parts for the
original one-piece assembly. Replacement of a rear muffler
may be possible with the system installed on the car. Re-
placement of the front or middle muffler should only be done
with the exhaust removed from the car.
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Mark length of new muffler pipe(s) on old system.
-
Use exhaust pipe cutter to cut pipe(s). Deburr cut pipe
end@).
4
Use clamping sleeves to join new pipe(s) to old.
Make sure pipe ends are centered inside sleeve.
Point clamping sleeve bolt threads (arrows) down.
-
Reinstall exhaust system.