Removing and installing high-pressure accumulator: VW Polo 6R (CLNA)

🧭 Before you start

Fits: VW Polo 6R (2009–2014)

• Renewed: retaining clips

Don't miss

• Always read rules for cleanliness and instructions for working on fuel system .Always follow these rules for cleanliness and instructions before starting work and while working on the fuel system. — Remove engine cover panel .
• The lifting eye (for engine mounting) must be movable in order to unscrew union nut on high-pressure pump; loosen bolts (4) to do this.
• Counterhold on high-pressure union (A) when loosening high-pressure line.

🔧 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.

📐 62 workshop diagrams for CLNA

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

📋 Procedure

1. ⚠ Always read rules for cleanliness and instructions for working on fuel system .Always follow these rules for cleanliness and instructions before starting work and while working on the fuel system. — Remove engine cover panel .
2. Unscrew bolt (3) from retainer for high-pressure line.
3. Remove fuel high-pressure line (2). To do this, release union nuts on high-pressure pump (4) and high-pressure accumulator (1). [Note: The lifting eye (for engine mounting) must be movable in order to unscrew union nut on high-pressure pump; loosen bolts (4) to do this.]
4. Open cable guide fasteners (arrows) to free wiring harness.
5. Position pliers3314 with groove (arrow A) on support sleeve shoulder (arrow B).

6. Carefully pull connectors off glow pin plugs in direction of (arrow).
7. Pull off electrical connectors (1 and 4).
8. Pull off fuel return hose (2).
9. Disconnect electrical connectors (1, 6 and 7).
10. ⚠ Mark allocation of high-pressure lines to cylinders. They must always be re-installed on the same cylinders.Observe rules for cleanliness when working on the injection system.Plug open connections with suitable sealing caps immediately. — Remove high-pressure lines between high-pressure accumulator and injectors. [Note: Counterhold on high-pressure union (A) when loosening high-pressure line.]
11. After removal, lay high-pressure lines on a clean cloth.
12. Remove high-pressure accumulator, for this purpose unscrew two bolts.
13. Initially tighten securing bolts (arrows) to just max. 1 - 2 Nm. — 2 Nm (1.5 lb-ft)
14. Install high-pressure lines . [Note: Renew retaining clips.Observe cylinder specific markings when reusing high-pressure lines.The high-pressure lines may be re-used after the following checks:Check taper seat of respective high-pressure line for deformation and cracks.The line hole must not be deformed, constricted or damaged.Corroded lines should no longer be used.]

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