Renault Koleos Service Repair Manual: Exhaust: Precautions for the repair

I - PARTS AND CONSUMABLES FOR THE REPAIR

1 - Parts always to be replaced:

• the seal or sealing ring on the connection between the catalytic converter or catalytic pre-converter and the rest of the exhaust system

2 - Consumables:

• surface cleaner
• abrasive pads

II - ADVICE TO OBSERVE

1 - During removal and refitting, the catalytic converter or catalytic pre-converter must not receive any knocks or impacts as this could damage it.

2 - The whole exhaust pipe is made of stainless steel.

3 - After working on the bracket between the catalytic converter or catalytic pre-converter and the rest of the exhaust system, ensure that the connection is perfectly sealed.

To do this:

• clean the pressure faces of the connection using the ABRASIVE PADS,
• degrease the pressure faces of the connection using SURFACE CLEANER and clean cloths,
• always replace the seal or sealing ring on the connection.

Check the following and deal with if necessary:

• no underbody contact between the exhaust system and the heat shields,
• all of the heat shields are present and secure.

Catalytic pre-converter: Removal - Refitting

2TR

• For removal or replacement of the catalytic pre-converter.