Removing and Installing Front Pipe

18 31 090 Replacing front pipe (M57T2 TOP)







WARNING: Risk of burning.

This repair work may only be carried out on an exhaust system which has cooled down.







NOTE:
If the separation point is not marked by a punch mark on the pipe, determine the separation point by means of the pipe length on the new front pipe.
Carry over separation point to defective front pipe and mark.
Secure front pipe against falling off.
Cut through exhaust pipes at marked point with a suitable tool and deburr.







Unfasten nut.

Installation note:
Tightening torque 18 20 8AZ.







Release screws.

Installation note:
Tightening torque 18 20 4AZ.

Lower and remove front pipe with the assistance of a second person.







Installation note:
Connect and align front pipe with centre silencer using clamps.
Align and tighten clamps.
Tightening torque 18 20 9AZ.
Align clamps so that:
- Nuts point downwards.
- Cutting line is in middle of clamping sleeve.
- There is sufficient spacing to adjoining components.







Installation note:
Check rubber mount for damage.
If necessary, replace damaged rubber mounts.
Check exhaust system for leak tightness.