Exhaust System Component Overview
Exhaust System Component Overview
• After exhaust system repairs, make sure exhaust system is not under stress and is far enough from the body. If necessary, loosen clamping sleeves and align mufflers and exhaust pipes so that there is adequate distance to vehicle body, and weight is evenly distributed among the exhaust hangers.
With FWD
1 Center muffler
• Original equipment as one unit with rear muffler. For repairs, replace each separately.
• Separating point => [ Separate exhaust pipes at a right angle
at separating point using. ] Service and Repair
• Install exhaust system, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
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 Front exhaust pipe with catalytic converter and front muffler
• For cylinder bank 1 (right)
• With decoupling element; do not bend decoupling element more than 10° or it may be damaged
• Protect from shocks and impact stress
• Removing and installing, refer to => [ Right Front Exhaust Pipe with Catalytic Converter ] Right Front Exhaust Pipe With Catalytic Converter
• Individual components of mounting: Vehicles with manual transmission => [ Individual right mounting components - vehicles
with manual transmission ] , vehicles with multitronic transmission => [ Individual right mounting components for vehicles
with multitronic transmission 01J ]
• Install exhaust system => [ Exhaust System, Installing ] Exhaust System, Installing
8 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.
• Removing and installing, refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
• Tighten to 55 Nm.
9 27 Nm
• Replace
10 Exhaust Manifold
• For cylinder bank 2 (left)
• Removing and installing, refer to => [ Left Exhaust Manifold ] Left Exhaust Manifold
11 Gasket
• Replace
12 Front exhaust pipe with catalytic converter and front muffler
• For cylinder bank 2 (left)
• With decoupling element; do not bend the decoupling element more than 10° or it may be damaged
• Protect from shocks and impact stress
• Removing and installing, refer to => [ Left Front Exhaust Pipe with Catalytic Converter ] Left Front Exhaust Pipe With Catalytic Converter
• Individual components of mounting: Vehicles with manual transmission => [ Individual left mounting components - vehicles
with manual transmission ] , vehicles with multitronic transmission => [ Individual left mounting components - vehicles
with multitronic transmission 01J ]
• Install exhaust system free of stress => [ Exhaust System, Installing ] Exhaust System, Installing
13 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.
14 Front clamping sleeves
• Installed location => [ Installed position of front double clamps ]
• Before tightening, align exhaust system so that it is tension-free => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
15 23 Nm
16 Rear muffler with tailpipe
• Left side of vehicle
• Original equipment as one unit with center muffler
• In case of repairs, center muffler end muffler and tailpipe should be replaced individually
• Separating point center muffler/rear muffler => [ Separate exhaust pipes at a right angle
at separating point using. ] Service and Repair
• Rear muffler/tailpipe separating point, refer to => [ Tail Pipe, Replacing ] Tail Pipe, Replacing
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
17 Suspended mount
• Replace if damaged
18 23 Nm
19 Rear muffler with tailpipe
• Right side of vehicle
• Original equipment as one unit with center muffler
• In case of repairs, center muffler end muffler and tailpipe should be replaced individually
• Separating point center muffler/rear muffler => [ Separate exhaust pipes at a right angle
at separating point using. ] Service and Repair
• Rear muffler/tailpipe separating point, refer to => [ Tail Pipe, Replacing ] Tail Pipe, Replacing
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
20 23 Nm
• Replace
21 Rear clamping sleeves
• For individual replacement of center and rear mufflers
• Position clamping sleeve centrally to separation point
• Installed location => [ Installed position of rear double clamps ]
• Before tightening, align exhaust system so that it is tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
22 23 Nm
23 Suspended mount
• Replace if damaged
24 23 Nm
With AWD
1 23 Nm
2 Suspended mount
• Replace if damaged
3 Center muffler
• Original equipment as one unit with rear muffler. For repairs, replace each separately.
• Separating point => [ Separate exhaust pipes at a right angle
at separating point using. ] Service and Repair
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
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 Front exhaust pipe with catalytic converter and front muffler
• For cylinder bank 1 (right)
• With decoupling element; do not bend the decoupling element more than 10° or it may be damaged
• Protect from shocks and impact stress
• Removing and installing:
• Vehicles with manual transmission, refer to => [ Right Front Exhaust Pipe with Catalytic Converter ] Right Front Exhaust Pipe With Catalytic Converter
• Vehicles with multitronic transmission, refer to => [ Right Front Exhaust Pipe with Catalytic Converter ] Right Front Exhaust Pipe With Catalytic Converter
• Vehicles with automatic transmission, refer to => [ Right Front Exhaust Pipe with Catalytic Converter ] Right Front Exhaust Pipe With Catalytic Converter
• Individual components of mounting: Vehicles with manual transmission => [ Individual right mounting components - vehicles
with manual transmission ] , vehicles with automatic transmission => [ Individual right mounting components - vehicles
with automatic transmission 09L ]
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
8 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.
• Removing and installing, refer to => Fuel Delivery and Air Induction Fuel Delivery and Air Induction
• Tighten to 55 Nm.
9 27 Nm
• Replace
10 Exhaust Manifold
• For cylinder bank 2 (left)
• Removing and installing, refer to => [ Left Exhaust Manifold ] Left Exhaust Manifold
11 Gasket
• Replace
12 Front exhaust pipe with catalytic converter and front muffler
• For cylinder bank 2 (left)
• With decoupling element; do not bend the decoupling element more than 10° or it may be damaged
• Protect from shocks and impact stress
• Removing and installing:
• Vehicles with manual transmission, refer to => [ Left Front Exhaust Pipe with Catalytic Converter ] Left Front Exhaust Pipe With Catalytic Converter
• Vehicles with multitronic transmission, refer to => [ Left Front Exhaust Pipe with Catalytic Converter ] Left Front Exhaust Pipe With Catalytic Converter
• Vehicles with automatic transmission, refer to => [ Left Front Exhaust Pipe with Catalytic Converter, Automatic Transmission ] Left Front Exhaust Pipe With Catalytic Converter, Automatic Transmission
• Individual components of mounting: Vehicles with manual transmission => [ Individual left mounting components - vehicles
with manual transmission ] , vehicles with automatic transmission => [ Individual left mounting components - vehicles
with automatic transmission 09L ]
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
13 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.
14 Front clamping sleeves
• Installed location => [ Installed position of front double clamps ]
• Before tightening, align exhaust system so that it is tension-free. Refer to => [ Exhaust System, Installing ] Exhaust System, Installing.
• Tighten threaded connections evenly.
15 23 Nm
16 Rear muffler with tailpipe
• Left side of vehicle
• Original equipment as one unit with center muffler
• In case of repairs, center muffler end muffler and tailpipe should be replaced individually
• Separating point center muffler/rear muffler => [ Separate exhaust pipes at a right angle
at separating point using. ] Service and Repair
• Rear muffler/tailpipe separating point, refer to => [ Tail Pipe, Replacing ] Tail Pipe, Replacing
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
17 Suspended mount
• Replace if damaged
18 23 Nm
19 Rear muffler with tailpipe
• Right side of vehicle
• Original equipment as one unit with center muffler
• In case of repairs, center muffler end muffler and tailpipe should be replaced individually
• Separating point center muffler/rear muffler => [ Separate exhaust pipes at a right angle
at separating point using. ] Service and Repair
• Rear muffler/tailpipe separating point, refer to => [ Tail Pipe, Replacing ] Tail Pipe, Replacing
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
20 23 Nm
• Replace
21 Bracket
22 23 Nm
23 Rear clamping sleeves
• For individual replacement of center and rear mufflers
• Position clamping sleeve centrally to separation point
• Installed location => [ Installed position of rear double clamps ]
• Before tightening, align exhaust system so that it is tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
Installed position of front double clamps
- Install double clamps so that the bolt ends do not project over lower edge of double clamp.
• Threaded connections face each other.
Installed position of rear double clamps
- Install double clamps so that the bolt ends do not project over lower edge of double clamp.
• Threaded connections point toward outside.
Individual left mounting components - vehicles with manual transmission
1. Nut - 25 Nm
2. Spacing sleeve
3. Tab
4. Buffer
5. Spacing sleeve
6. Bolt - 25 Nm
7. Bolt
8. Washer
9. Spring
10. Spacing sleeve
Individual right mounting components - vehicles with manual transmission
1. Bolt - 25 Nm
2. Spacing sleeve
3. Buffer
4. Tab
5. Spacing sleeve
6. Nut - 25 Nm
7. Spacing sleeve
8. Spring
9. Washer
10. Bolt
Individual left mounting components - vehicles with multitronic transmission 01J
1. Bolt - 25 Nm
2. Washer
3. Spring
4. Spacing sleeve
5. Nut, self-locking - 25 Nm
6. Bolt - 25 Nm
7. Spacing sleeve
8. Buffer
9. Tab
10. Spacing sleeve
Individual right mounting components for vehicles with multitronic transmission 01J
1. Nut, self-locking - 25 Nm
2. Bolt - 25 Nm
3. Spacing sleeve
4. Buffer
5. Tab
6. Spacing sleeve
7. Bolt - 25 Nm
8. Washer
9. Spring
10. Spacing sleeve
Individual left mounting components - vehicles with automatic transmission 09L
1. Nut - 25 Nm
2. Spacing sleeve
3. Spring
4. Washer
5. Bolt
6. Bolt - 25 Nm
7. Spacing sleeve
8. Buffer
9. Tab
10. Spacing sleeve
Individual right mounting components - vehicles with automatic transmission 09L
1. Nut - 25 Nm
2. Bolt - 25 Nm
3. Spacing sleeve
4. Buffer
5. Tab
6. Spacing sleeve
7. Bolt
8. Washer
9. Spring
10. Spacing sleeve