TorqFix

Removing and installing evaporator with heater and air conditioning unit installed — VW

Removing and installing evaporator with heater and air conditioning unit installed on VW: 14 steps. What to remove, in what order, and what to check after.

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

14 steps

🧭 Before you start

Fits: VW Touareg II (7P, 2010–2018)

Don't miss

  • Observe risk category of high-voltage system 93General warning instructions for work on the high-voltage system.
  • Install seals in same position as old ones.

📋 Procedure

  1. Observe safety precautions when working on the high-voltage system Safety precautions when working on high-voltage system.
  2. Observe safety precautions when working in the vicinity of high-voltage components Safety precautions when working in the vicinity of high-voltage components.
  3. Observe risk category of high-voltage system 93General warning instructions for work on the high-voltage system.
  4. Comply with notes Working on refrigerant circuit.
  5. Extract refrigerant with air conditioning service station. Comply with notes .
VW? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove rear expansion valve .
  2. Move rear heating and air conditioning unit to service position .
  3. Remove bolts (A).
  4. Release catches (B).
  5. Remove evaporator housing (C) with evaporator and rear heating and air conditioning unit.
  6. When installing, ensure that seals are correctly seated. [Note: Install seals in same position as old ones.]
  7. Refill the refrigerant circuit Air conditioner with refrigerant R134a.
  8. Read event memory of Climatronic control unit J255 and of rear Climatronic operating and display unit E265. Clear any faults displayed vehicle diagnostic tester.
  9. If necessary, check operation of air conditioning system vehicle diagnostic tester.

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.

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Workshop data on this page last updated 20 Sep 2026.