Volkswagen Workshop Service and Repair Manuals

Removing and installing catalytic converters with front exhaust pipe Removing: –  Remove air filter → Chapter.

–  Disconnect connector for Lambda probe -G39--arrow- and lay cable to side.

–  Remove nuts (accessible from above) -arrows- securing front exhaust pipe to turbocharger. –  Unscrew nuts (accessible from below) securing front exhaust pipe to turbocharger.

–  Unscrew nuts -arrows- and pull underbody cover down slightly.

Engine codes BZB, CAWA, CAWB, CCTA, CCTB, CGYA, CCZA, CCZB, CDAA: –  Separate electrical connection -arrow- on right of underbody. –  Remove electrical connector from bracket and lay electrical line to Lambda probe to side.

Engine code CBFA: –  Unclip lines -arrows-, pull off retainer -2- and separate connectors -1 and 3-.

All: –  Unbolt bracket for exhaust system -arrows-.

–  Remove cross member for underbody -arrows-.   Caution Avoid damage to flexible joints. Do not bend flexible joint in front exhaust pipe more than 10°. –  Loosen clamp -1- and push to rear. –  Remove catalytic converters with front exhaust pipe. Installing: Installation is carried out in the reverse order. When installing, note the following: t  Coat studs of turbocharger with high-temperature paste -G 052 112 A3-. t  Renew seals, gaskets and self-locking nuts. t  Aligning exhaust system free of stress → Chapter. Specified torques

Component		Nm
Tunnel cross-piece to body		25