Removing and installing tank for reduction agent — AUDI

🧭 Before you start

Fits: platform codes 2EA, 2FC

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• Pull protective cap off hydraulic connection of pressure line; then connect hydraulic connector (4), and make sure it is securely engaged.

🔧 Engine codes this applies to

📐 25 workshop diagrams for CKTB

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

📋 Procedure

1. ⚠ Immediately seal all open lines and connections using suitable plugs to prevent ingress of dirt. The smallest particle of dirt can cause extensive damage to the system.Protect disconnected connectors against wetting from reducing agent by suitable means, e.g. a plastic bag and cable ties. Electrical connections may be damaged due to the high penetration ability along with subsequent crystallisation of the reducing agent. — Emptying tank for reduction agent .
2. Remove front bumper cover General body repairs, exterior63Front bumper; Removing and installing front bumper cover on vehicles as of 2012.
3. Push connection (3) as far as stop onto coupling point; then press catch (arrow), and pull off connection. Seal open connections to prevent ingress of dirt.
4. Open spring-type clip (2), and pull moulded hose of filler neck (1) off tank for reducing agent.
5. Pull control unit for reducing-agent heater J891(3) towards rear ((arrow)) off catch on reducing agent tank, and lay it to one side ensuring that lines (1) and (2) remain connected.

6. Disconnect reducing agent supply line (1) and wiring harness (2) from tank by releasing securing clamps (arrows).
7. Push hydraulic connection of delivery line (2) as far as stop onto delivery module; then press securing clips (arrows), and pull off connection. Seal open connections to prevent ingress of dirt.
8. Release and disconnect connectors (1) and (3).
9. Unscrew securing bolts (arrows).
10. Unscrew securing bolt from longitudinal member (arrow), and remove tank for reducing agent downwards.
11. Install tank for reducing agent, and connect filler neck.
12. Fit control unit for reducing-agent heater J891, and engage it.
13. Pull protective cap off hydraulic connection of pressure line; then connect hydraulic connector (4), and make sure it is securely engaged.
14. Fit and engage connectors (3) and (5).
15. Fill reducing agent tank 1.2.

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