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Removing and installing fuel temperature sender G81: Audi A3 2.5 TDI (AXD, AXE, BLJ, BNZ, …)

Step-by-step removing and installing fuel temperature sender G81 for the Audi A3 2.5 TDI: 9 steps. What to remove, in what order, and what to check after.

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

9 steps 40 engine codes engine codes merged from 13 documented variants

🧭 Before you start

Fits: Audi A3 (8V, 2012–2020)

Don't miss

  • Disregard (item 2).

🔧 Engine codes this applies to

AXDAXEBLJBNZBPCCCGACLHACNHACNHCCRBCCRBDCRFACRFCCRKBCRLBCRLCCRTCCRUACSUACSUBCSUDCSUECSWBCUNACUUBCUUCCUUDCUUECUUFCUVBCUVCCUVDCUWACVMDCVZACXMACXXBCYLACZJACZZA

📋 Procedure

  1. Remove engine cover panel .
  2. Unplug electrical connector (1).
  3. Remove fuel temperature sender G81(arrow).
  4. Catch escaping fuel with a cloth. [Note: Disregard (item 2).]
  5. Renew seal (3).
AXD? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Check that seal (2) is correctly seated.
  2. Screw fuel temperature sender G81(1) into adapter (4).
  3. Check fuel system for leaks .
  4. Install engine cover panel .

Other AUDI procedures

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.