Removing and installing coolant distributor housing with thermostat, engine code BVY, BVZ — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

• Renewed: o-ring

🔧 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.

📐 50 workshop diagrams for AXW

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

📋 Procedure

1. Remove alternator Electrical system27Alternator.
2. Remove coolant pipes .
3. Detach coolant hose (2) from coolant distributor housing; to do so, pull out retaining clip (1).
4. Unscrew bolts (arrows) and remove coolant distributor housing with thermostat from engine.
5. Clean sealing surface for O-ring.
6. Renew O-ring and lubricate with coolant.
7. Fit coolant distributor housing on cylinder block and tighten bolts evenly to 15 Nm. — 15 Nm (11 lb-ft)
8. Further assembly is basically carried out in reverse order of dismantling.

Other AUDI procedures

• Removing and installing fuel rail – Audi 2.0
• Removing and installing accelerator module (Touran) · 1 torque figures
• Removing and installing air filter element – Audi
• Removing and installing ignition coils with output stages
• Checking current draw – VW Polo 6R
• Removing and installing toothed belt – Audi · 56 torque figures
• 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
• Removing and installing camshaft timing chain · 29 torque figures