Install exhaust system

CAUTION: Component with heavy weight .
Injury hazard!

Note component's center of gravity.
Support component using a jack.
Secure component against falling off the jack.

CAUTION: Grinding dust from grinding of components .
Hazardous to health!

Directly draw off the grinding dust.
Ensure adequate ventilation.
Conduct all work in appropriate personal protective equipment only.

NOTE: TECHNICAL INFORMATION
Mount the exhaust system in a de-energized state, following the tightening sequence from the rear silencer towards the exhaust manifold.

NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.

Check all the rubber mounts (1) of the exhaust system for damage.
Replaced damaged rubber mounts.
Parts: Rubber mount

Courtesy of BMW OF NORTH AMERICA, INC.
CAUTION:
Shavings resulting from sawing or grinding components .
Injury hazard!
- Conduct all work in appropriate personal protective equipment only.
- Wear safety goggles and hand protection.
Courtesy of BMW OF NORTH AMERICA, INC.
Version A:
Open the weld seam (1) with a conventional tool.
Remove the circlip (2).
Replace the clamps to the left and right.
Parts: Clamps
Feed in exhaust system with three persons.
Connect exhaust system to catalytic converters.
Replace nuts (2).
Parts: Nuts

Tighten nuts (2).

TIGHTENING TORQUE SPECIFICATIONS

Rear silencer to body/bumper support
M8 Replace nuts.	Tightening torque	19 Nm

G14241142

Courtesy of BMW OF NORTH AMERICA, INC.

Connect and lock the connectors (1) at left and right.
The connectors (1) must engage audibly.
Replace the screw (1).
Parts: Screw

Tighten the screw (1) to the left of the rear axle support.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system to rear axle carrier
M8x25 Replace screw.	tightening torque	28 Nm

G14241140

Courtesy of BMW OF NORTH AMERICA, INC.

Replace the screw (1).
Parts: Screw

Tighten the screw (1) to the right of the rear axle support.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system to rear axle carrier
M8x25 Replace screw.	tightening torque	28 Nm

G14193009

Courtesy of BMW OF NORTH AMERICA, INC.

Version A:

Tighten the clamp (1) on the left.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system/front silencer to catalytic converter
cl. If necessary, replace clamp.	tightening torque	47 Nm

G14241134

Courtesy of BMW OF NORTH AMERICA, INC.

Version A:

Tighten the clamp (1) on the right.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system/front silencer to catalytic converter
cl. If necessary, replace clamp.	tightening torque	47 Nm

G14241135

Courtesy of BMW OF NORTH AMERICA, INC.

Version B:
Replace the seals (1).

Parts: Seals

Courtesy of BMW OF NORTH AMERICA, INC.
Version B:
Replace nuts (1).

Parts: Nuts
Tighten nuts (1).

Courtesy of BMW OF NORTH AMERICA, INC.
Version B:
Replace nuts (1).

Parts: Nuts
Version B:
Tighten nuts (1).

Courtesy of BMW OF NORTH AMERICA, INC.
Version B:
Tighten the union nuts (1).

Courtesy of BMW OF NORTH AMERICA, INC.
Version B:
Tighten the union nuts (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE LEFT AND RIGHT REAR DIFFUSER .
Refer to INSTALLING THE REAR LEFT AND RIGHT TENSIONING STRUT .
Refer to INSTALLING THE LEFT AND RIGHT UNDERSHIELD (TANK COVER) .