Removing and installing delivery module: VW Touareg II 3.0 TDI (CATA)

🧭 Before you start

Fits: VW Touareg II (7P, 2010–2018)

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• Fit delivery module into tank for reduction agent, note markings (A). The marks (A) must align when inserting.
• Carefully grasp in cup of delivery module and engage it by turning it clockwise. The marks (B) must align when engaged correctly.
• Moisten sealing pin of cover with water and press it carefully into seal. The marks (1) must align.

🔧 Engine codes this applies to

📐 18 workshop diagrams for CATA

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

📋 Procedure

1. ⚠ The reduction agent can irritate skin, eyes and respiratory organs.After skin contact with this agent, wash immediately with plenty of water.If necessary seek advice from a doctor. — Remove tank for reduction agent .
2. ⚠ Protect separated electrical connections against wetting from reduction agent by suitable means, e.g. plastic bag and cable ties. Electrical connections may be damaged due to the high penetration ability of the reduction agent along with subsequent crystallisation of the reduction agent. — Pull off breather line (arrows).
3. Unscrew securing bolts (A) and pull pump for reduction agent V437 off upwards.
4. Cut through cable ties (arrows) on sealing ring.
5. Pull connector (arrow) off right side of reduction agent tank.

6. Pull connector (arrow) off evaluation unit for reduction agent tank G698.
7. Fit special wrench T50014 onto sealing ring as shown and unscrew it.
8. ⚠ When open, only tilt cover a max. of 30° this prevents damage to electrical cables and suction probe of delivery module. — Open cover of delivery module, if necessary use wedge3409.
9. Carefully grasp in cup of delivery module and release it from the locking device by turning it anti-clockwise.
10. Remove delivery module upwards out of tank for reduction agent.
11. Fit seal to opening of tank for reduction agent.
12. Fit delivery module into tank for reduction agent, note markings (A). The marks (A) must align when inserting.
13. Carefully grasp in cup of delivery module and engage it by turning it clockwise. The marks (B) must align when engaged correctly.
14. Moisten sealing pin of cover with water and press it carefully into seal. The marks (1) must align.
15. Fit sealing ring and tighten it hand-tight.
16. ⚠ Ensure sealing ring is not cross threaded on threads of tank for reduction agent. This will cause leaks along with serious corrosion damage. — Fit special wrench T50014 onto sealing ring as shown and tighten it. Specified torque .
17. Wash off excessive reduction agent using water.

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