Renewing seal on injector: VW 1.4 (CDGA)

🧭 Before you start

Fits: VW Touran I (1T, 2003–2015), VW Passat B6 (3C, 2005–2010), VW Passat B7 saloon (362, 2010–2014), VW Passat B7 Variant (365, 2010–2014)

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• Make sure that the tank shut-off valve on each of the natural gas tanks is closed. — Remove O-ring (3).
• Natural gas system may not be operated until tested accordingly.

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📐 41 workshop diagrams for CDGA

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

📋 Procedure

1. ⚠ Make sure that the tank shut-off valve on each of the natural gas tanks is closed. — Remove O-ring (3).
2. Check support washer (2) and spring element (1) for damage.
3. Moisten new O-ring with oil, and fit new O-ring (3) in front of support washer (2).
4. Place lower part of intake manifold carefully on injectors and tighten securing bolts to 20 Nm Removing and installing lower part of intake manifold. — 20 Nm (15 lb-ft)
5. Install intake manifold Assembly overview - intake manifold.

6. Install regulating flap control unit J808 and throttle valve module J338Removing and installing regulating flap control unit J808 and throttle valve module J338. [Note: Natural gas system may not be operated until tested accordingly.]
7. ⚠ Operating the natural gas system without having tested it for leaks according to specifications may result in severe injuries or death.The necessary scope of the leakage test depends on the pressure section which has been worked on.Note the following allocation! — Open fuel tank shut-off valves N361/N362/N363/N429 (depending on vehicle model and equipment level) using hand wheel T50026.
8. Check gas system Checking natural gas supply system for leaks
9. Install air filter Removing and installing air filter housing.

Other VW procedures

• Separating plug-in connectors
• Removing and installing solenoids from tank shut-off valve 2N362 · 1 torque figures
• Removing and installing pulley – VW 1.4 CDGA · 1 torque figures
• Emptying fuel tank when fuel pump is intact, petrol
• Removing and installing regulating flap control unit J808 and throttle valve module J338
• Removing engine · 41 torque figures
• Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
• Adjusting valve timing – VW Passat B5 · 83 torque figures
• Removing and installing camshafts – VW Passat B6 · 39 torque figures
• Removing and installing coolant pump · 53 torque figures