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Checking control line to turbocharger: VW Jetta VI / Golf V / Jetta (CAYB, CAYC, CBAA, CBAB, …)

Step-by-step checking control line to turbocharger for the VW Jetta VI / Golf V / Jetta: 11 steps. 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.

11 steps 28 engine codes engine codes merged from 10 documented variants

🧭 Before you start

Fits: VW Jetta VI (16, 2010–2018), VW Golf V / Jetta (1K, 2003–2009); platform code AJ5

  • Renewed: vacuum hose

Don't miss

  • Do not use screws or threaded bolts.

📐 80 workshop diagrams for CAYB

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

Checking control line to turbocharger — CAYB · diagram 1
Checking control line to turbocharger — CAYB · diagram 2
Checking control line to turbocharger — CAYB · diagram 3
Checking control line to turbocharger — CAYB · diagram 4
Checking control line to turbocharger — CAYB · diagram 5
Checking control line to turbocharger — CAYB · diagram 6
Checking control line to turbocharger — CAYB · diagram 7
Checking control line to turbocharger — CAYB · diagram 8
+ 72 more diagrams

📋 Procedure

  1. Pull off vacuum hose on middle union from charge pressure control solenoid valve N75 and from turbocharger vacuum unit .
  2. Detach vacuum hose from middle connector of charge pressure control solenoid valve N75 and from turbocharger vacuum unit .
  3. Seal one opening of hose with a suitable sealing plug. [Note: Do not use screws or threaded bolts.]
  4. Connect hand vacuum pumpVAS 6213 to other end of hose and generate a vacuum of 0.6 bar.
  5. Observe gauge of hand vacuum pumpVAS 6213 for approx. 30 seconds.
CAYB? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Renew vacuum hose.
  2. Reconnect all disconnected vacuum hoses.
  3. Install engine cover .
  4. Reconnect all disconnected vacuum hoses.
  5. Install engine cover .
  6. Checking control line to vacuum unit for exhaust gas recirculation cooler changeover function .
Workshop diagrams

Ask TorqFix about your VW CAYB — 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.

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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.