Auxiliary belt replacement: Detaching and attaching air conditioner compressor at bracket, vehicles with 4-cyl. or 6-cyl. engine — AUDI

🧭 Before you start

Fits: Audi TT Mk2 (8J, 2006–2014)

Don't miss

• Mark the direction of the poly V-belt (the illustration shows the layout for a 4-cyl. engine).
• The version of the air conditioner compressor with pulley shown in this illustration is not installed on the Audi TT.

🔩 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. Remove engine cover panel (top) 10Engine cover panel; Removing and installing engine cover panel (e.g. on vehicle with 2.0 ltr. TFSI engine).
2. Mark the direction of the poly V-belt (the illustration shows the layout for a 4-cyl. engine).
3. Detach poly V-belt 13Cylinder block (pulley end); Removing and installing poly V-belt.
4. Remove noise insulation (centre) General body repairs, exterior66Noise insulation; Exploded view - noise insulation.
5. Remove noise insulation (right-side) General body repairs, exterior66Noise insulation; Exploded view - noise insulation (e.g. on vehicle with 2.0 ltr. TFSI engine).

6. If fitted, remove frame for noise insulation (currently installed on e.g. Audi TT Roadster) General body repairs, exterior50Lock carrier; Exploded view - lock carrier.
7. Remove right air hose (from air pipe between turbocharger and charge air cooler) 21Charge air system; Exploded view - charge air system (e.g. on vehicle with TFSI engine).
8. Unplug the connector (1) at the air conditioner compressor regulating valve N280.
9. Unscrew bolts (arrow) for air conditioner compressor.
10. Detach the air conditioner compressor and attach it to the vehicle with a piece of wire for example .
11. Before attaching air conditioner compressor, check position of both dowel sleeves (arrow) in bracket or in compressor. [Note: The version of the air conditioner compressor with pulley shown in this illustration is not installed on the Audi TT.]
12. Fit the bolts (A), (B) or (C).
13. ⚠ Different bolts and thus different tightening torques depending on the engine and production periodEnsure correct allocation Electronic parts catalogue.Use aluminium bolts only once; they must always be renewed (in this case: item (A)).Tightening torque for aluminium bolts (here Item (A)) 8 Nm +180°Tightening torque for steel bolts (here (B) and (C)) 25 Nm — Tighten the bolts (arrows). — 8 Nm (5.9 lb-ft) + 180°
14. Plug in the connector (1) at the air conditioner compressor regulating valve N280.
15. Position poly V-belt on poly V-belt pulley 13Cylinder block (pulley end); Removing and installing poly V-belt. [Note: After attaching air conditioner compressor, check routing of refrigerant lines. They must be inserted in the brackets provided (if fitted, depends on engine).Check that refrigerant lines and corresponding brackets have adequate clearance to other components, ensuring sufficient distance between belt, bracket and pulley.]

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