Muffler Assembly Overview

Muffler Assembly Overview

• Heat shield lock washers can be loosened and tightened with a screwdriver. Tightening Specification: 2 Nm






1 Bolt

• 23 Nm

2 Bracket for Exhaust System

3 Center Muffler

• Unit with rear muffler

• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Removal and Replacement

4 Retaining Loop

• Replace if damaged

5 Nut

• 23 Nm

6 Bracket for Exhaust System

7 Bolt

• 23 Nm

8 Suspended Mount

• Replace if damaged

9 Bolt

• 23 Nm

10 Tunnel Brace

11 Nut

• Replace

• 40 Nm

12 Seals

• Replace

13 Oxygen Sensors Before Catalytic Converter

• Threads on new oxygen sensors are coated with assembly paste

• When re-installing a used oxygen sensor, coat threads with hot bolt paste; hot bolt paste

• Assembly paste or hot bolt paste must not get onto slots of sensor body.

14 Oxygen Sensors Behind Catalytic Converter

• Threads on new oxygen sensors are coated with assembly paste

• When re-installing a used oxygen sensor, coat threads with hot bolt paste; hot bolt paste

• Assembly paste or hot bolt paste must not get onto slots of sensor body.

15 Front Exhaust Pipe with Catalytic Converters and Front Muffler

Risk of damaging decoupling elements.

• Do not bend decoupling element in front exhaust pipe more than 10°.

• Do not load decoupling element on cable

• Do not damage wire mesh at decoupling element

• Protect catalytic converter from shocks and impact stress

• Removal and installation, refer to => [ Front Exhaust Pipe with Catalytic Converters and Front Muffler ] Service and Repair

• Remove decoupling element guard on replacement part as late as possible

• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Removal and Replacement

16 Nut

• 23 Nm

17 Clamping Sleeve

• Before tightening, ensure exhaust system is tension-free => [ Exhaust System, Installing ] Removal and Replacement

• Installed location, refer to => [ Clamping Sleeve Location ]

• Tighten threaded connections evenly.

18 Rear Muffler

• Unit with center muffler

• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Removal and Replacement

19 Retaining Loop

• Replace if damaged

20 Nut

• 23 Nm

Clamping Sleeve Location





- Install clamping sleeve in angle position shown.

• Threaded connections point toward the right.

• Nuts face up.

• alpha = approximately 20°