Emptying petrol tank with fuel pump intact — AUDI
Emptying petrol tank with fuel pump intact on Audi: 12 steps, engines CPWA. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Caddy IV (SA, 2015–2020)
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- The fuel pump is being activated when engine is not running.
- Risk of damage to fuel system pressurisation pump G6 when the fuel tank is empty. The fuel system pressurisation pump G6 must not run »dry«.
🔧 Engine codes this applies to
📋 Procedure
- Observe safety instructions .
- Observe rules for cleanliness .
- Pull off supply line (2) and catch escaping fuel with a cloth .
- Collect escaping fuel with a cleaning cloth.
- ⚠ Fuel line is pressurised.Risk of injury to eyes and skin caused by fuel.Wear safety goggles and protective clothing to avoid possible injury and skin contact. Before opening hose connections wrap a cloth around the connection. Then relieve pressure by carefully opening the connection. — Connect fuel extractorVAS 5190 with adapter for fuel extractorVAS 5190 /3 to fuel supply line.
- Connect vehicle diagnostic tester. [Note: The fuel pump is being activated when engine is not running.]
- Switch ignition on.
- Remove cap from fuel filler neck.
- Perform function "“Draining fuel system”" in "“Guided functions”".
- Operate shut-off tap on fuel extractorVAS 5190, until the fuel tank is emptied. [Note: Risk of damage to fuel system pressurisation pump G6 when the fuel tank is empty. The fuel system pressurisation pump G6 must not run »dry«.]
- Connect vehicle diagnostic tester.
- Perform the function "“Bleeding fuel system”" in "“Guided functions”".
Other AUDI procedures
- Removing and installing gas rail with gas injector N366/N367/N368/N369
- Removing and installing magnetic coils for fuel tank shut-off valves N361/N362
- Removing and installing filler connection for natural gas tank
- Checking gas system for leaks – Audi 2.0 BSX/CPWA
- Removing and installing bottom section of sump
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.