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Removing and installing upper part of fuel filter — VW

Removing and installing upper part of fuel filter on VW: 13 steps, engines CAYB, CAYC, CBAA, CBAB. What to remove, in what order, and what to check after.

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

13 steps 22 engine codes engine codes merged from 7 documented variants

🧭 Before you start

Fits: platform codes 5C7, 5C1

Don't miss

  • If upper part of fuel filter is tight or seized, loosen upper part of fuel filter as follows:
  • Do NOT tighten the bolts for the upper part until it is fully in contact with the lower part. — Screw bolts into lower part of fuel filter and tighten hand-tight.

📋 Procedure

  1. ⚠ Do not detach fuel hoses from fuel filter.Do NOT lever on unions.Levering/pulling leads to leaks and damage to the upper part of the fuel filter.Ensure that no diesel comes into contact with other components in the engine compartment. If necessary clean immediately. — Observe safety precautions .
  2. Observe rules for cleanliness .
  3. Remove engine cover 10Engine cover; Removing and installing engine cover.
  4. Pull engine cover upwards in areas of (arrows) and in sequence shown.
  5. To do this, grip beneath engine cover as far as possible.
CAYB? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. ⚠ Bracket for engine cover on cylinder head cover may break off if removed improperly. Remove engine cover according to following instructions under all circumstances. — Unscrew all bolts (arrows) of upper part of fuel filter and remove upper part of fuel filter. [Note: If upper part of fuel filter is tight or seized, loosen upper part of fuel filter as follows:]
  2. Insert respective end of angled screwdriverVAS 6543 into assembly groove (arrow A).
  3. Turn angled screwdriverVAS 6543.
  4. Remove seal (2) from upper part of fuel filter (1) by levering seal out of the groove (arrow).
  5. Moisten new seal (1) with diesel and insert seal into upper part of fuel filter (arrows).
  6. Insert upper part of fuel filter with seal correctly onto lower part of fuel filter and press on evenly until the upper part of fuel filter seats completely.
  7. ⚠ Do NOT tighten the bolts for the upper part until it is fully in contact with the lower part. — Screw bolts into lower part of fuel filter and tighten hand-tight.
  8. Tighten bolts to specified torque in sequence according to illustration (arrows).

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.

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Workshop data on this page last updated 20 Sep 2026.