Removing and installing charge air cooling pump V188: VW Passat B8 (CHPA, CJZA, CJZB, CJZC, …)

🧭 Before you start

Noise insulation off, drip tray or cloth under the pump, connector and harness released. Depending on the layout, the coolant hoses are either left on the pump and freed from their retainers, or clamped off with hose clamps up to 25 mm, the hose clips released and the hoses pulled. The pump is removed with its bracket after the two bolts are undone, or lifted out after the retaining arm is opened. Installation reverses this, with the retaining arm attached to the bracket at the bottom, hose connections secured with clips to production standard, and the coolant level checked.

Fits: VW Passat B8 (3G, 2014–)

• Special tools named: 3094

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• Clamp hoses (1) and (5) with clamps up to 25 mm before releasing the clips; coolant drains otherwise.
• Place a cloth or the hoist drip tray under the pump before unplugging it.
• Projection on the rubber bracket must sit in the groove of the retaining arm.
• Attach the retaining arm to the bracket at the bottom before closing it.
• Secure all hose connections with hose clips to production standard.
• Check the coolant level once everything is back together.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📐 34 workshop diagrams for CHPA

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

📋 Procedure

1. Remove noise insulation General body repairs, exterior66Noise insulation; Assembly overview - noise insulation.
2. Release and unplug electrical connector (3).
3. Place a cloth underneath to absorb escaping coolant.
4. Unclip wiring harness from retainer.
5. Open retainer for coolant hose leading to radiator. Detach coolant hose.

6. Unclip retainer (6) for coolant hose leading to water radiator for charge air cooling circuit.
7. Unscrew the two bolts (2), and remove charge air cooling pump V188 together with bracket.
8. Lay charge air cooling pump V188 to one side.
9. Set drip tray for workshop hoistVAS 6208 underneath.
10. Release and unplug electrical connector (3). [Note: Place a cloth underneath to absorb escaping coolant.]
11. Clamp off coolant hoses (1) and (5) with hose clamps, up to 25 mm 3094.
12. Release hose clips (arrows) and detach coolant hoses.
13. Unclip wiring harness from retainer.
14. Open retainer for coolant hose leading to radiator. Detach coolant hose.
15. Unclip retainer (6) for coolant hose leading to water radiator for charge air cooling circuit.
16. Unscrew the two bolts (2), and remove charge air cooling pump V188 together with bracket.
17. Unscrew bolt , and open retaining arm .
18. Remove charge air cooling pump V188.
19. Attach retaining arm at bottom to bracket .
20. Remove charge air cooling pump V188.
21. Make sure that the projection on the rubber bracket is seated in the respective groove in the retaining arm . [Note: Secure all hose connections with hose clips meeting production standard Electronic Parts Catalogue.]
22. Check coolant level .

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