FWD
Exhaust System Component Overview
1 Center muffler
• Original equipment as one unit with rear muffler. For repairs, replace each separately.
• Separating point => [ Cut exhaust pipe using at right angle at separating point. ] Service and Repair
• Install exhaust system free of stress, refer to => [ Exhaust System, Aligning ] Procedures
2 23 Nm
3 Suspended mount
• Replace if damaged
4 27 Nm
• Replace
5 Exhaust manifold
• For cylinder bank 1 (right)
• Removing and installing, refer to => [ Right Exhaust Manifold ] Right Exhaust Manifold
6 Gasket
• Replace
7 Heated Oxygen Sensor (HO2S) (G39)
• For cylinder bank 1 (right)
• The threads of new oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body
• When re-using the old oxygen sensor, grease the threads with hot bolt paste; the paste must not get into slots of oxygen sensor body; hot bolt paste.
• Removing and installing, refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
• Tighten to 55 Nm
8 Heated Oxygen Sensor (HO2S) 2 (G108)
• For cylinder bank 2 (left)
• The threads of new oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body
• When re-using the old oxygen sensor, grease the threads with hot bolt paste; the paste must not get into slots of oxygen sensor body; hot bolt paste.
• Removing and installing. Refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
• Tighten to 55 Nm
9 Exhaust manifold
• For cylinder bank 2 (left)
• Removing and installing, refer to => [ Left Exhaust Manifold ] Left Exhaust Manifold
10 Gasket
• Replace
11 27 Nm
• Replace
12 Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)
• For cylinder bank 2 (left)
• The threads of new oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body
• When re-using the old oxygen sensor, grease the threads with hot bolt paste; the paste must not get into slots of oxygen sensor body; hot bolt paste.
• Removing and installing. Refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
• Tighten to 55 Nm
13 Front exhaust pipe with catalytic converter
• For cylinder bank 2 (left)
• With decoupling element, decoupling element must not be bent more than 10° - otherwise it may be damaged
• Protect from shocks and impact stress
• Install exhaust system free of stress, refer to => [ Exhaust System, Aligning ] Procedures
• Individual components of mounting: Vehicles with manual transmission => [ Individual components for left mount, vehicles
with manual transmission ] Exhaust System Component Overview, vehicles with 01J automatic transmission => [ Individual components of left mount for vehicles
with 01J automatic transmission ] Exhaust System Component Overview
• Removing and installing, refer to: Vehicles with manual transmission => [ Left Front Exhaust Pipe with Catalytic Converter, Manual Transmission ] Left Front Exhaust Pipe With Catalytic Converter, Manual Transmission, vehicles with 01J automatic transmission => [ Left Front Exhaust Pipe with Catalytic Converter, Multitronic Transmission 01J ] Left Front Exhaust Pipe With Catalytic Converter, Multitronic Transmission 01J
14 Front clamping sleeve
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Aligning ] Procedures
• Installed location => [ Installation position of front double clamps ] Exhaust System Component Overview
• Tighten threaded connections evenly.
15 40 Nm
16 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
• For cylinder bank 1 (right)
• The threads of new oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body
• When re-using the old oxygen sensor, grease the threads with hot bolt paste; the paste must not get into slots of oxygen sensor body; hot bolt paste. Refer to
• Removing and installing, refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
• Tighten to 55 Nm
17 Front exhaust pipe with catalytic converter
• For cylinder bank 1 (right)
• With decoupling element, decoupling element must not be bent more than 10° - otherwise it may be damaged
• Protect from shocks and impact stress
• Install exhaust system free of stress, refer to => [ Exhaust System, Aligning ] Procedures
• Individual components of mounting: Vehicles with manual transmission => [ Individual components for right mount, vehicles
with manual transmission ] Exhaust System Component Overview, vehicles with 01J automatic transmission => [ Individual components for right mount for vehicles
with 01J automatic transmission ] Exhaust System Component Overview
• Removing and installing, refer to: Vehicles with manual transmission => [ Right Front Exhaust Pipe with Catalytic Converter, Manual Transmission ] Right Front Exhaust Pipe With Catalytic Converter, Manual Transmission, vehicles with 01J automatic transmission => [ Right Front Exhaust Pipe with Catalytic Converter, Multitronic Transmission 01J ] Right Front Exhaust Pipe With Catalytic Converter, Multitronic Transmission 01J
18 Rear muffler
• For left side of vehicle
• Original equipment as one unit with center muffler. For repairs, replace each separately.
• Separating point => [ Cut exhaust pipe using at right angle at separating point. ] Service and Repair
• Replacing end pipe, refer to => [ Tail Pipe, Replacing ] Tail Pipe, Replacing
• Install exhaust system free of stress, refer to => [ Exhaust System, Aligning ] Procedures
19 Suspended mount
• Replace if damaged
20 23 Nm
21 Rear muffler
• For right side of vehicle
• Original equipment as one unit with center muffler. For repairs, replace each separately.
• Separating point => [ Cut exhaust pipe using at right angle at separating point. ] Service and Repair
• Replacing end pipe, refer to => [ Tail Pipe, Replacing ] Tail Pipe, Replacing
• Install exhaust system free of stress, refer to => [ Exhaust System, Aligning ] Procedures
22 23 Nm
23 Rear clamping sleeve
• For individual replacement of center and rear mufflers
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Aligning ] Procedures
• Installed location => [ Installation position of rear double clamps ] Exhaust System Component Overview
• Tighten threaded connections evenly.
24 40 Nm
25 Suspended mount
• Replace if damaged
26 23 Nm