Removing and installing tensioner for poly V-belt: Audi A3 (ACV, AHY, AJT, ASB, …)

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

• Timing position: the crankshaft or camshaft is set and locked during this job

Don't miss

• Disregard items marked (1 and arrows).

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Release fasteners (1 and 2) and remove centre noise insulation.
2. Release fasteners (1, 2, 3) and remove noise insulation (right-side).
3. Remove bolt (2) at bracket for coolant pump for continued circulation V51. [Note: Disregard items marked (1 and arrows).]
4. Slacken clip (1) and remove bolt (2).
5. Detach exhaust silencer for auxiliary heater.

6. Secure lifting eye 2024 A /2 to engine lifting eye using flange nut (arrow).
7. Position support bracket10 - 222 A on top of body flanges using the following tools:
8. Take up weight of engine with spindle.
9. Remove bolts (arrows) of assembly mounting at engine.
10. Lower engine by approx. 55 mm.
11. ⚠ If a used belt runs in the opposite direction when it is refitted, this can cause breakage.Before removing, mark direction of rotation of poly V-belt with chalk or felt-tip pen for re-installation. — To slacken poly V-belt turn tensioner in direction of (arrow).
12. Lock tensioner with locking pin T10060 A.
13. Detach poly V-belt from tensioner.
14. Move clear electrical wiring harness (arrow).
15. Remove bolt (1) and take off tensioner for poly V-belt from bracket for ancillaries.
16. Insert tensioner (1) for poly V-belt in bracket for ancillaries (3) and tighten bolt (5).
17. Install poly V-belt .
18. Install continued coolant circulation pump V51.
19. Adjust assembly mountings .

Other AUDI procedures

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• Checking thermal switch and coolant circulation pump or continued coolant circulation pump
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• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
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