TorqFix

Removing and installing left catalytic converter (bank 2): VW Touareg II (CGNA, CJTA, CMKA, CMKB, …)

Step-by-step removing and installing left catalytic converter (bank 2) for the VW Touareg II: 12 steps.

Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.

12 steps 5 engine codes engine codes merged from 2 documented variants

🧭 Before you start

Fits: VW Touareg II (7P, 2010–2018)

  • Renewed: gaskets

🔧 Engine codes this applies to

📋 Procedure

  1. Remove left air hose (A) with air filter upper section. Loosen hose clip (1) and open retaining clips (2) to do so.
  2. Remove hoses (1) and (2). Unscrew bolts (arrows), loosen clip (3) on throttle valve module and swing out air pipe (A).
  3. Place cable for lambda probe 2G108 and lambda probe 2 after catalytic converter G131 to one side.
  4. Unscrew nut (accessible from above) (2) with articulated wrench T40220.
  5. Remove noise insulation General body repairs, exterior 50. Assembly overview - noise insulation.
CGNA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Unscrew bolts (1) and (2) and remove catalytic converter support.
  2. Remove left front silencer (A).
  3. Unscrew nuts (accessible from below) (1) and (3) from connection of front exhaust pipe to exhaust manifold.
  4. Swivel out catalytic converter downwards.
  5. Attach all cable ties in the same places when installing.
  6. Renew gaskets, self-locking nuts and clamping sleeves.
  7. Aligning exhaust system free of stress (see the separate procedure).

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.