Removing and installing air conditioner compressor, engine codes BDN and BDP — VW

🧭 Before you start

Fits: VW Passat B5 (3B)

Don't miss

• Observe the two upper dowel sleeves when removing vane pump bracket .
• The subframe must be supported before engine bracket is removed.
• Connect the refrigerant lines using new seals before installing air conditioner compressor. When installing the air conditioner compressor, make sure the dowel sleeves are securely seated (2).

🔩 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.

📋 Procedure

1. Remove poly V-belt 13.
2. Separate retaining clamps for refrigerant lines on sump.
3. Remove washer reservoir.
4. Unbolt power steering vane pump at bracket and lay it to side; hoses remain connected 48. [Note: Observe the two upper dowel sleeves when removing vane pump bracket .]
5. Unbolt vane pump bracket.

6. Unbolt anti-roll bar at the two front retaining clamps (2) and pull anti-roll bar downwards 40. [Note: The subframe must be supported before engine bracket is removed.]
7. Remove left engine bracket 40.
8. Remove left hydraulic mounting from engine support.
9. Remove radiator fan control unit from left longitudinal member (arrow).
10. Remove electrical wiring and connectors as necessary.
11. Remove bolts (6) (25 Nm) for refrigerant lines (5). — 25 Nm (18 lb-ft)
12. Remove bolts (4) (23 Nm) for compressor (3) from bracket (1). [Note: Connect the refrigerant lines using new seals before installing air conditioner compressor. When installing the air conditioner compressor, make sure the dowel sleeves are securely seated (2).] — 23 Nm (17 lb-ft)
13. Install hydraulic mounting.
14. Tighten threaded connections for engine bracket 40.

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