Checking vacuum unit for intake manifold flaps: VW Golf V / Jetta (AXZ, BHK, BHL, BLV, …)

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009)

• Renewed: vacuum unit

Don't miss

• Check vacuum lines to make sure they are connected properly.

🔧 Engine codes this applies to

📋 Procedure

1. Start engine and run at idling speed.
2. Have second person abruptly increase engine speed (throttle burst). Observe vacuum unit for intake manifold change-over:
3. Check vacuum system for leaks including vacuum reservoir on intake manifold.
4. Check mechanical change-over components for ease of movement. To do this, operate rods by hand.
5. Check vacuum lines to make sure they are connected properly.

6. Check vacuum hoses for porosity.
7. Remove air filter .
8. Pull vacuum hose off vacuum actuator.
9. Connect hand vacuum pumpVAS 6213 to vacuum actuator.
10. Move slide ring (1) on hand vacuum pumpVAS 6213 to position (A) for "“vacuum”".
11. Operate hand vacuum pump repeatedly.
12. Pull hand vacuum pump off vacuum actuator.
13. Renew vacuum unit.

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