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Removing and installing fuel tanks 1 and 2 from and to support, 7-seater, natural gas — VW

Removing and installing fuel tanks 1 and 2 from and to support, 7-seater, natural gas on VW: 32 steps, engines BSX, CDGA.

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

32 steps 2 engine codes

🔧 Engine codes this applies to

📋 Procedure

  1. Observe safety precautions .
  2. Observe rules for cleanliness .
  3. Observe safety precautions when working on natural gas system .
  4. ⚠ Release pressure in the system before working on the natural gas system. — Release pressure in high-pressure line .
  5. Ensure not to damage the painted surface when working on the fuel tanks.
BSX? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. If necessary, protect painted surface with suitable workshop equipment.
  2. Remove fuel tanks 1 and 2 with support .
  3. Remove support with fuel tanks from engine and gearbox jackV.A.G 1383 A.
  4. Place support with fuel tanks on a suitable surface, and secure it.
  5. Measure and note dimension (a) between fuel tank shut-off valve 1N361(1) and inner edge of support (2).
  6. Release securing straps of fuel tanks (arrow).
  7. Remove securing straps.
  8. Remove solenoids from fuel tank shut-off valve 1N361 and fuel tank shut-off valve 2N362.
  9. Unscrew union nuts (arrows), and remove line (3) from fuel tanks (1) and (2).
  10. To do this, push fuel tanks towards rear.
  11. Remove fuel tanks from support.
  12. Use brackets T10351 to store the fuel tanks.
  13. Place brackets T10351 on a suitable surface, and secure them.
  14. Secure bracket T10351 and fuel tank to prevent them from falling down. [Note: If the fuel tanks have to be stored temporarily, do so using bracket T10351.] [Note: Renew securing straps after each removal.New securing straps are delivered in non-preformed condition.For allocation of securing straps, refer to the parts catalogue.The securing straps must be bent in order to ensure secure installation.The securing straps vary in length depending on the diameter of the fuel tanks.]
  15. Install fuel tank shut-off valve.
  16. Check the damper strips on the support for damage, and make sure that all damper strips are present. Renew them if necessary .
  17. Check securing strap pads for damage, and renew them if necessary .
  18. Place securing strap pads around fuel tanks .
  19. New securing straps must first be pre-formed. To do this, use the old securing straps as a template.
  20. Make sure to not damage the surface.
  21. Position fuel tank (1) in support (2), and align it.
  22. Adjust dimension (a) between fuel tank shut-off valve 1N361 and inner edge of support (2).
  23. Align the two fuel tanks (1) and (2) by turning and moving so that the union nuts (arrow) can be screwed on.
  24. Fuel tank (1) must not be moved in horizontal direction while doing so.
  25. Line (3) must be installed free of stress.
  26. Screw on line with union nuts (arrows) by hand as far as stop.
  27. Renew and tighten securing straps.

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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.