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Removing and installing exhaust gas temperature sender 3G495 — VW

Removing and installing exhaust gas temperature sender 3G495 on VW: 12 steps, engines CASA, CASD, CATA, CFFA.

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

12 steps 37 engine codes engine codes merged from 10 documented variants

🧭 Before you start

Fits: VW Touareg II (7P, 2010–2018)

Don't miss

  • Coat thread of exhaust gas temperature sender with high-temperature paste; high-temperature paste Electronic Parts Catalogue.

📋 Procedure

  1. Remove engine cover panel .
  2. Remove electrical connector (4) for exhaust gas temperature sender 3G495 from retainer and detach connector.
  3. Move electric cable downwards.
  4. Remove rear noise insulation General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
  5. Remove exhaust temperature sender 3G495(arrow).
CASA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove connector (6) from retainer and disconnect.
  2. Expose wiring to exhaust gas temperature sender 3G495.
  3. Remove rear noise insulation: General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
  4. Unscrew exhaust temperature sender 3G495(1) and remove.
  5. Unclip, release and pull off connector (brown) on underbody in left area of subframe.
  6. Expose wiring to exhaust gas temperature sender 3G495.
  7. Unscrew exhaust temperature sender 3G495(1) and remove. [Note: Coat thread of exhaust gas temperature sender with high-temperature paste; high-temperature paste Electronic Parts Catalogue.]

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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.

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Workshop data on this page last updated 20 Sep 2026.