Engine Codes BGP and CBUA

Exhaust Pipe with Catalytic Converter Overview






1 Exhaust Manifold

• Coat the stud bolts with hot bolt paste.

2 Gasket

• Always replace.

• Note the installed position:

Gasket recess - arrow A - must be located at exhaust manifold recess - arrow B -.

3 Connector

• Black, 4 pin

4 Oxygen Sensor in Bank 1 Center Three Way Catalytic Converter (G465)

• 55 Nm

• When reusing an old oxygen sensor again, only use hot bolt paste to grease the threads. Do not let the paste get onto the slits of the oxygen sensor body.

5 Spring Nut

• Insert from the front.

6 Clamp

• Before tightening, ensure the exhaust system is free of tension. Refer to => [ Exhaust System, Aligning ] Service and Repair.

• Installed position, refer to => [ Installed Position of the Clamp ].

7 Nut

• 25 Nm

• Tighten the nuts evenly.

8 Nut

• 23 Nm

9 Oxygen Sensor after Three Way Catalytic Converter (G130)

• 55 Nm

• When reusing an old oxygen sensor again, only use hot bolt paste to grease the threads. Do not let the paste get onto the slits of the oxygen sensor body.

10 Connector

• Brown, 4 pin

• Installed position, refer to => [ Oxygen Sensor Connector Installed Position ].

11 Front Cross Member

12 Bolt

• 5 Nm

13 Heat Shield

• For the catalytic converter.

14 Bolt

• 25 Nm

15 Suspended Mount

• Replace if damaged.

16 Bolt

• 10 Nm

17 Exhaust Pipe with Catalytic Converter

• Protect from shocks and impact stress.

• With the coupling element.

• Do not bend the coupling element more than 10° - otherwise it may get damaged.

• Removing and installing, refer to => [ Exhaust Pipe with Catalytic Converter ] Exhaust Pipe With Catalytic Converter.

• Align the exhaust system free of tension. Refer to => [ Exhaust System, Aligning ] Service and Repair.

18 Nut

• 25 Nm

• Always replace.

Installed Position of the Clamp





The - arrow - points in the direction of travel.

- Align the clamp - 1 - to the mark on the pipe - 2 -.

- a - = 5 mm

The bolts must not project beyond the lower edge of the clamp.

Oxygen Sensor Connector Installed Position





The connector is located to the right, on the vehicle floor under the cover.

1. Oxygen sensor after three way catalytic converter connector, brown

2. Bracket

3. Oxygen sensor in bank 1 center three way catalytic converter connector, black