18 31 015
(Cylinder bank 1… 6)
Remove rear splash guard.
Remove heat baffle plate from front axle support and from positive battery lead.
Unfasten screws on top exhaust pipe.
Installation: Replace sealing ring, refer to 18 11 015
Unfasten screw connection on flanges (1 and 2).
Remove exhaust pipes.
Check seals (1 and 2) and replace if necessary.
Replace self-locking nuts.
Coat thread with copper paste -CRC-, refer to BMW Parts Service.