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Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — VW

Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) on VW: 10 steps, engines CAVA, CAVB, CAVC, CAVD.

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

10 steps 4 engine codes

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009); platform code 5M1

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  • Operate hand vacuum pumpVAS 6213 several times. Vacuum must not build up.
  • Hold breather connection shut and operate vacuum pump again several times. Vacuum must build up.

🔧 Engine codes this applies to

CAVACAVBCAVCCAVD

📐 60 workshop diagrams for CAVA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 1
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 2
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 3
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 4
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 5
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 6
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 7
Checking fuel tank breather (engine codes CAVA, CAVB, CAVC, CAVD) — CAVA · diagram 8
+ 52 more diagrams
🔒 60 workshop diagrams for this job Ask about your VW CAVA — free or sign up free to see the drawings

📋 Procedure

  1. Pull off bleeder line (1). Detach push-on connectors
  2. Connect hand vacuum pumpVAS 6213 to breather line leading to activated charcoal filter as shown.
  3. Plug the connecting nippleVAS 6550/3-1 into breather line.
  4. Connect hand vacuum pumpVAS 6213 and connecting nippleVAS 6550/3-1 to each other using a commercially available hose (A).
  5. Move slide ring (1) on hand vacuum pumpVAS 6213 to position (A) for "„vacuum“".
CAVA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Operate hand vacuum pumpVAS 6213 several times. Vacuum must not build up.
  2. Check breather hose on activated charcoal filter for soiling and clean if necessary.
  3. Hold breather connection shut and operate vacuum pump again several times. Vacuum must build up.
  4. In addition, clamp off hose between activated charcoal filter and activated charcoal filter solenoid valve 1N80.
  5. Operate vacuum pump several times.
Workshop diagrams

Ask TorqFix about your VW CAVA — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.

Ask about your VW CAVA — free → or sign up free to see the drawings

Other VW procedures

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.