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: Heavy component.
Heavy components can lead to injury or damage.

Remove and install heavy components with the aid of another person/other persons.

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
Check the exhaust system for tightness after installation.

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

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.

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Version without a gasoline particulate filter:
Open the weld seam (1) with a conventional tool.
Remove the previous left and right clamps (2) .
NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.
Check all rubber mounts (1) of the exhaust system for damage and replace, if necessary.

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Replace nuts (1) .
Parts: Nuts

Tighten the nuts (1) at left on the rear silencer.

TIGHTENING TORQUE SPECIFICATIONS

Rear silencer to bumper bracket/body
Nut M8 Replace nut.	Tightening torque	19 Nm

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Replace nuts (1) .
Parts: Nuts

Tighten the nuts (1) at right on the rear silencer.

TIGHTENING TORQUE SPECIFICATIONS

Rear silencer to bumper bracket/body
Nut M8 Replace nut.	Tightening torque	19 Nm

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Replace nut (1) .
Parts: Nut

Tighten the nut (1) at left on the rear silencer.

TIGHTENING TORQUE SPECIFICATIONS

Rear silencer to bumper bracket/body
Nut M8 Replace nut.	Tightening torque	19 Nm

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Replace nut (1) .
Parts: Nut

Tighten the nut (1) at right on the rear silencer.

TIGHTENING TORQUE SPECIFICATIONS

Rear silencer to bumper bracket/body
Nut M8 Replace nut.	Tightening torque	19 Nm

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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

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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

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Feed in and install the exhaust system with the help of 3 people.
Version without a gasoline particulate filter:
If necessary, replace clamp (1) .

Parts: cl
Connect exhaust system to catalytic converters.

Tighten the clamp (1) on the left.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system/front silencer to catalytic converter
cl. If necessary, replace clamp.	Tightening torque	55 Nm

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Version without a gasoline particulate filter:

Tighten the clamp (1) on the right.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system/front silencer to catalytic converter
cl. If necessary, replace clamp.	Tightening torque	55 Nm

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Version without a gasoline particulate filter:
Replace seal (1) on left catalytic converter.

Parts: Gasket

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Version without a gasoline particulate filter:
Replace seal (1) on right catalytic converter.

Parts: Gasket

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Version with a gasoline particulate filter:
Guide in gasoline particulate filter with three persons.
Connect gasoline particulate filter with the catalytic converters.

Tighten nuts (1) .

Parts: Nuts

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system/gas particulate filter to cat
M8 Nut Replace nuts.	Tightening torque	19 Nm

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Version with a gasoline particulate filter:

Tighten nuts (1) .

Parts: Nuts

TIGHTENING TORQUE SPECIFICATIONS

Exhaust system/gas particulate filter to cat
M8 Nut Replace nuts.	Tightening torque	19 Nm

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Connect the connector (1) to the actuator for the exhaust flap on the left and lock it audibly.

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Connect the connector (1) to the actuator for the exhaust flap on the right and lock it audibly.

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Version with a gasoline particulate filter:

Screw in and tighten exhaust temperature sensor (1) before the right gasoline particulate filter.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust-gas temperature sensor to exhaust system
Tightening torque		30 Nm

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Version with a gasoline particulate filter:

Screw in and tighten exhaust temperature sensor (1) before the left gasoline particulate filter.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust-gas temperature sensor to exhaust system
Tightening torque		30 Nm

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Version with a gasoline particulate filter:

Screw in and tighten exhaust temperature sensor (1) after the left gasoline particulate filter.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust-gas temperature sensor to exhaust system
Tightening torque		30 Nm

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Version with a gasoline particulate filter:

Screw in and tighten exhaust temperature sensor (1) after the right gasoline particulate filter.

TIGHTENING TORQUE SPECIFICATIONS

Exhaust-gas temperature sensor to exhaust system
Tightening torque		30 Nm

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Follow-up work

Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
Refer to INSTALLING BOTH TRIM PIECES FOR THE EXHAUST TAILPIPE .
Refer to INSTALLING THE TRIM ON THE REAR BUMPER PANEL .
Refer to INSTALLING THE REAR DIFFUSER .