Exhaust Manifold, Front Exhaust Pipes with Catalytic Converters Overview
Exhaust Manifold, Front Exhaust Pipes with Catalytic Converters Overview
When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues:
• Route lines of all types (for example, fuel, hydraulic, Evaporative Emission (EVAP), coolant, refrigerant, brake fluid and vacuum) and electrical wiring so that the original path is followed.
• Ensure sufficient clearance to all moving or hot components.
• After exhaust system installation work, ensure the system is spaced far enough away from body. If necessary, loosen the double clamp on the front exhaust pipe and align the pipe again.
• Do not use sealants containing silicone. Traces of silicone components which are sucked into the engine are not burned there, and they damage the oxygen sensors.
• Replace the self-locking nuts.
Front exhaust pipe with catalytic converters, removing and installing. Refer to => [ Front Exhaust Pipe with Catalytic Converters ] Front Exhaust Pipe with Catalytic Converters.
1 Connector
• Black, 6-pin
2 Heated Oxygen Sensor (HO2S) (G39)
• 50 Nm
• Bank 1, sensor 1
• Installed in the exhaust gas stream of cylinders 1, 2 and 3.
• Only use hot bolt paste to grease the thread; do not let the paste get onto slits of the oxygen sensor body.
• Removing and installing, refer to => [ Heated Oxygen Sensor and Heated Oxygen Sensor 2 ] Heated Oxygen Sensor and Heated Oxygen Sensor 2.
3 Heated Oxygen Sensor (HO2S) 2 (G108)
• 50 Nm
• Bank 2, sensor 1
• Installed in the exhaust gas stream of cylinders 4, 5 and 6.
• Only use hot bolt paste to grease the threads; do not let paste get onto the slits of the oxygen sensor body.
• Removing and installing, refer to => [ Heated Oxygen Sensor and Heated Oxygen Sensor 2 ] Heated Oxygen Sensor and Heated Oxygen Sensor 2.
4 Connector
• Brown, 6-pin
5 Nut
• 40 Nm
• Replace
6 Oxygen Sensor (O2S) 2 after Catalytic Converter (G131)
• 50 Nm
• Bank 2, sensor 2
• Installed in the exhaust gas stream of cylinders 4, 5 and 6.
• Only use hot bolt paste to grease the threads; do not let the paste get onto the slits of the oxygen sensor body.
• Use ring spanner 7-piece set (3337) for removal and installation.
7 Connector
• Brown, 4-pin
8 Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) (G130)
• 50 Nm
• Bank 1, sensor 2
• Installed in the exhaust gas stream of cylinders 1, 2 and 3.
• Only use hot bolt paste to grease the threads; do not let the paste get onto the slits of the oxygen sensor body.
• Use ring spanner 7-piece set (3337) for removal and installation.
9 Connector
• Black, 4-pin
10 Heat Shield
11 Intake Manifold Support
12 Bolt
• 20 Nm
13 Gasket
• Replace
14 Bolt
• 25 Nm
15 Exhaust Manifold
16 Nut
• Replace
• 25 Nm
17 Front Muffler
18 To Middle Muffler
19 Bolt
• 25 Nm
20 Suspended Mount
• For the left and right front exhaust pipe.
21 Catalytic Converter
• Installed in the exhaust stream of cylinder 1, 2 and 3 on right side as well as 4, 5 and 6 on left side.
22 Front Exhaust Pipe with Catalytic Converter
• With the decoupling element.
• Do not bend the decoupling elements more than 20° during removal or they may be damaged.
• Removing and installing, refer to => [ Front Exhaust Pipe with Catalytic Converters ] Front Exhaust Pipe with Catalytic Converters.