Removing and installing fuel delivery unit: engine code AWT — VW

🧭 Before you start

Fits: VW Passat B5 (3B)

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• To release fuel lines press together circlip on face side of angled connection at bottom.
• If delivery unit is to be renewed, drain old delivery unit before disposal.

🔧 Engine codes this applies to

📋 Procedure

1. First check whether a coded radio is fitted. If so, obtain anti-theft coding.
2. Switch off ignition and all electrical consumers.
3. Disconnect battery earth strap Electrical system27Battery; Removing and installing battery.
4. Open fuel filler cap briefly, then close it again.
5. Remove luggage compartment floor covering.

6. Remove cover from fuel delivery unit.
7. ⚠ 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. — Pull 4-pin connector and supply and return lines (arrows) off flange. [Note: To release fuel lines press together circlip on face side of angled connection at bottom.]
8. Unscrew union nut with union nut tool3217.
9. Pull fuel delivery unit and seal out of opening in fuel tank. [Note: If delivery unit is to be renewed, drain old delivery unit before disposal.]
10. Installation of fuel delivery unit is carried out in reverse order. [Note: Do not bend fuel gauge senderG when installing.Moisten inside of seal with fuel only when installing fuel delivery unit.Ensure that fuel lines are tight.Do not interchange supply and return lines.Note Installation position of fuel delivery unit flange: Mark (1) on flange must align with mark (2) on fuel tank.After installing fuel delivery unit, check that supply, return and breather lines are still clipped onto fuel tank.]
11. Read fault memories of all control units, rectify faults as necessary and then erase fault memories Vehicle diagnosis, test and information systemVAS 5051; Guided fault finding; Vehicle system test, or Vehicle diagnosis and service information systemVAS 5052; Vehicle self-diagnosis.

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