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Removing and installing fuel delivery unit, vehicles with four-wheel drive — VW

Removing and installing fuel delivery unit, vehicles with four-wheel drive on VW: 11 steps, engines AGZ.

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

11 steps 1 engine code

🧭 Before you start

Fits: VW Passat B5 (3B)

  • Special tools named: 3087

Don't miss

  • If delivery unit is to be renewed, drain old delivery unit before disposal.

🔧 Engine codes this applies to

AGZ

📋 Procedure

  1. Note safety precautions before beginning work .
  2. First check whether a coded radio is fitted. If so, obtain anti-theft coding.
  3. With ignition switched off, disconnect earth strap from battery.
  4. Remove rear bench seat.
  5. Remove cover in floor.
AGZ? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Pull 4-pin connector and supply and return lines (arrows) off flange.
  2. ⚠ Fuel supply lines are under pressure! Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection. — Unscrew locking ring using fuel tank sender unit tool 3087.
  3. Pull flange and seal out of opening in fuel tank.
  4. Unclip fuel gauge sender (G) from baffle housing in fuel tank and remove it.
  5. Turn fuel delivery unit towards left by approx. 15° as far as stop using fuel pump tool 3307 and remove it. [Note: If delivery unit is to be renewed, drain old delivery unit before disposal.]
  6. Installation of fuel delivery unit is carried out in reverse order. [Note: Do not bend fuel gauge sender when installing.Coat flange seal with fuel when fitting.Do not interchange supply and return hoses (return line -blue-).Secure fuel hoses with spring-type clips.Note Installation position of fuel delivery unit flange: Mark on flange (1) must align with mark on fuel tank (2).After installing fuel delivery unit flange, check that the supply, return and breather pipes are still clipped onto fuel tank.]

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.