Removing and installing Y-thermostat . — AUDI
Removing and installing Y-thermostat . on Audi: 12 steps, engines CKTB, CKTC, CKUB, CKUC. What to remove, in what order, and what to check after.
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: coolant
📐 25 workshop diagrams for CKTB
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Remove air filter .
- Remove any noise insulation General body repairs, exterior66Exterior equipment; Noise insulation.
- Drain coolant .
- Loosen clip (2) from exhaust gas recirculation cooler (3) and pull coolant hose (1) off.
- Loosen clip (2) and pull coolant hose (1) off.
- Loosen clip (2) and pull coolant hose (1) off.
- Release coolant hoses from retainers.
- Remove Y-thermostat together with hoses.
- Clip coolant hoses into retainers.
- Replenish coolant .
- Install air filter .
- Install any noise insulation General body repairs, exterior66Exterior equipment; Noise insulation.
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.