Checking delivery rate of fuel pumps: Audi A3 2.0 TDI (CBAA, CBAB, CBBB, CBEA, …)

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

Don't miss

• Check fuel system for leaks.

🔧 Engine codes this applies to

📐 48 workshop diagrams for CBAA

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

📋 Procedure

1. Remove engine cover panel .
2. Take noise insulation off cylinder head cover.
3. ⚠ Always read rules for cleanliness and instructions for working on fuel system .Follow these instructions and rules for cleanliness before starting work and while working on the fuel system.To reduce the pressure in the fuel system, wrap a clean cloth around the connection and carefully loosen the connection. — Disconnect fuel supply line (arrow) at high-pressure pump.
4. Hold fuel supply line (1) into a measuring container (2).
5. Connect a .

6. Switch on ignition.
7. Select "“Engine electronics”" in vehicle self-diagnosis.
8. Then select "“Basic setting”".
9. Select "“Display group 35”".
10. Press "“activate”" button.
11. The fuel pumps start running.
12. Let fuel pumps run for 15 seconds and exit activation function. [Note: Check fuel system for leaks.]

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