Removing and installing fuel pump control unit J538 — VW

🧭 Before you start

Access work first: ignition off, front seats fully forward, right rear seat and bench removed, carpet cover folded up at its parting line. Then the flange cover comes off with removal wedge 3409, the sealing grommet and cover are moved back along the harness, the retaining tab is pressed up from between floor panel and tank and the unit is drawn out by its harness and unplugged. On refitting, the harness is connected and pull-tested, the unit pushed into its bracket on the tank until it clicks and pull-tested again, then covers and seats go back.

Fits: VW Golf VII Variant (BA), VW Golf Sportsvan (AM1, 2014–2020), VW Golf VII (5G, 2012–2020)

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• Detach the carpet cover only partly, at the parting line; fully removed it will not go back in position.
• Unclip the flange cover at its retaining tabs with removal wedge 3409.
• The retaining tab (arrow A) is pressed up by hand from between the floor panel and the tank.
• Pull the unit out by the wiring harness in direction B while the tab is held up.
• After connecting, pull on the connector; after fitting, pull on the unit. Both must hold, and the unit must click in.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📋 Procedure

1. Move front seats to foremost position.
2. Switch off ignition.
3. Remove right rear seat General body repairs, interior72Rear seats; Removing and installing bench seat/individual seats.
4. Partially detach cover (1) in floor covering at parting line (arrow).
5. Do not detach cover completely from floor covering in order to ensure it is reinstalled in the correct installation position.

6. Detach it just enough that the cover can be folded upwards.
7. Fold up cover in (direction of arrow).
8. Remove rear bench seat General body repairs, interior72Rear seat; Removing and installing bench seat / individual seats.
9. Unclip cover (1) for flange at retaining tabs (arrows), using removal wedge3409.
10. Unclip sealing grommet (1) downwards from cover (2).
11. Push cover (2) back along wiring harness (3).
12. Press up tab (2)(arrow A); to do so, reach between floor panel and fuel tank with your finger.
13. At the same time, carefully pull fuel pump control unit(1) out of mounting (in direction of arrow B) by grasping wiring harness (3).
14. Guide fuel pump control unit J538 out towards interior between fuel tank and floor panel.
15. Disconnect electrical connector and remove fuel pump control unit J538.
16. Connect wiring harness to fuel pump control unit J538.
17. Check if connector is secured properly by pulling.
18. Insert fuel pump control unit J538 into mounting bracket on fuel tank and push it in until it audibly engages.
19. Pull fuel pump control unit J538 to check if it is secured properly.

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