Auxiliary belt replacement: Retrofitting auxiliary drive (genuine parts set) — AUDI
Auxiliary belt replacement — Retrofitting auxiliary drive (genuine parts set) on Audi: 19 steps, engines CKTB, CKTC, CKUB, CKUC.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: platform codes 2EA, 2FC
- Opens: brake fluid
Don't miss
- Align position of hub relative to vibration damper (arrows), and make a corresponding mark on vibration damper.
- Pay attention to the marks indicating the position of the pulley relative to the hub and that of the vibration damper.The auxiliary drive belt pulley fits in one position only. If incorrectly positioned, the bolt holes are offset.
📐 25 workshop diagrams for CKTB
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- ⚠ When doing any repair work, especially in the engine compartment, pay attention to the following due to the cramped conditions:Route all the various lines (e.g. for fuel, hydraulics, activated charcoal filter system, coolant and refrigerant, brake fluid and vacuum) and electrical wiring in their original positions.To avoid damage to lines, ensure sufficient clearance from all moving or hot components. — Cut out cowling in marked area (1).
- Deburr sharp edges if there are any.
- Remove poly V-belt for viscous fan .
- Remove poly V-belt .
- Remove vibration damper .
- Align position of hub relative to vibration damper (arrows), and make a corresponding mark on vibration damper.
- Install hub (1) with vibration damper (2).
- Tighten bolts to specified torque. [Note: The hub fits in one position only. If positioned incorrectly, the bolt holes are offset.Installation is possible in one position only, i.e. when the hole in the vibration damper is located over the projection on the toothed belt pulley .]
- Install poly V-belt .
- Install poly V-belt for viscous fan .
- Install auxiliary drive pulley (1).
- Tighten bolts to specified torque. [Note: Pay attention to the marks indicating the position of the pulley relative to the hub and that of the vibration damper.The auxiliary drive belt pulley fits in one position only. If incorrectly positioned, the bolt holes are offset.]
- Clip plug (arrow) into place.
- Mount bracket (5) on cylinder crankshaft, observing following procedure:
- Install air conditioner compressor or alternator.
- Tighten bolt (4) to specified torque.
- Fit tensioning element (2) to bracket (1).
- Tighten bolts (arrows).
- Install poly V-belt for auxiliary drive .
Ask TorqFix about your Audi CKTB — 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.
Ask about your Audi CKTB — free → or sign up free to see the drawingsOther AUDI procedures
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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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.