TorqFix

Removing and installing poly V-belt (engine codes BLG, BMY) — VW

Removing and installing poly V-belt (engine codes BLG, BMY) on VW: 10 steps, engines BLG, BMY. 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.

10 steps 2 engine codes

🧭 Before you start

Fits: VW Touran I (1T, 2003–2015), VW Golf V / Jetta (1K, 2003–2009); platform code 5M1

  • Timing position: the crankshaft or camshaft is set and locked during this job
  • Special tools named: 16 mm open-end spanner

Don't miss

  • Mark direction of rotation of poly V-belt.

🔧 Engine codes this applies to

📋 Procedure

  1. Remove securing bolts (arrows) of engine splash protection.
  2. Remove front right wheel housing liner General body repairs66Wheel housing liner; Removing and installing front wheel housing liner.
  3. Mark direction of rotation of poly V-belt.
  4. To slacken poly V-belt, swing tensioning element in (direction of arrow) from below using 16 mm open-end spanner.
  5. Lock tensioning element with a 4 mm Allen key (1).
BLG? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. To slacken poly V-belt, swivel tensioning element in direction of (arrow) from above using 16 mm open-end spanner T10447.
  2. Lock tensioning element using locking pin T10060 A.
  3. Remove poly V-belt (2).
  4. ⚠ Ensure, before installing poly V-belt, that all ancillaries (alternator, air conditioner compressor) are secured tightly.When installing poly V-belt, observe direction of rotation and make sure it is properly seated on pulleys and tensioning elements. — Fit poly V-belt first over crankshaft belt pulley. Finally, push belt onto tensioning roller.
  5. Start engine and check that belt runs properly.

🎬 Video walkthrough

Independent video tutorial by AUTODOC (YouTube) — a helpful visual companion to the steps above.

How to change serpentine belt / v-ribbed belt on VW TOURAN 1 (1T1, 1T2)

How to change serpentine belt / v-ribbed belt on VW TOURAN 1 (1T1, 1T2)

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.