Removing and installing tank for reducing agent, Tiguan — VW

🧭 Before you start

Fits: VW Tiguan I (5N, 2007–2016), VW CC (358, 2012–2017), VW Sharan II / SEAT Alhambra (7N, 2010–)

Don't miss

• Danger due to escaping reducing agent.Observe safety precautions when working with reducing agent . — Emptying tank for reducing agent .
• For reasons of clarity, the engine and gearbox jack is not shown.
• Ensure lines are secured properly by pulling.

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ Danger due to escaping reducing agent.Observe safety precautions when working with reducing agent . — Emptying tank for reducing agent .
2. Remove cover (1) on tank for reducing agent (2).
3. To do this, unscrew nuts (arrows).
4. Release and pull off connectors (1) and (3).
5. Release and pull off reducing agent line (2). Disconnect reducing agent line .

6. Place a cloth underneath coupling point to catch any escaping reducing agent.
7. Seal off all open lines and connections with clean plugs from engine bung setVAS 6122.
8. Unclip all lines on tank for reducing agent (arrows).
9. Place engine and gearbox jackVAS 6931 equipped with a soft foam padding under tank for reducing agent (1) to support the tank.
10. Unscrew bolts (2).
11. Pull tank for reducing agent out of guide.
12. Carefully lower tank for reducing agent. [Note: For reasons of clarity, the engine and gearbox jack is not shown.]
13. Lower tank for reducing agent with engine and gearbox jackVAS 6931.
14. Additionally support tank for reducing agent by hand while doing so.
15. Ensure lines are secured properly by pulling.
16. Check that all lines are clipped into tank for reducing agent.
17. Adapt learnt value for SCR system after reducing agent has been drained or after components have been renewed .

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