7L0919673F Fuel Tank Sender Unit For Volkswagen Touareg 7L 2002-2010

7L0919673F fuel level sender for Volkswagen Touareg 7L (2002-2010), the first generation SUV built on the PL71 platform. This is the in-tank sender that feeds the fuel gauge on the 3.0 V6 TDI, 3.6 V6 FSI, 4.2 V8 FSI and 6.0 W12 versions, and the same insert is used whether the car runs petrol or diesel.

The design is a float on a bent wire arm, swinging on a metal pivot inside a plastic carrier, with the wiper pressing on a thick film resistor track. Because the Touareg tank is saddle shaped and sits under the rear bench, the sender has a longer arm than a passenger car unit and a wider sweep angle, and the arm bend must not be altered during fitting. The carrier is located by two moulded lugs and held by a bayonet ring, sealed by a dedicated O-ring that swells slightly in contact with diesel.

The part is listed for the 7LA, 7L6 and 7L7 body codes with the 2002 to 2010 build window, and for the 2004 to 2010 diesel and petrol engine variants. Access is under the rear seat base: release the cushion, peel back the sound mat, unclip the electrical connector, then rotate the retaining ring. A strap wrench works better than a screwdriver here, since the plastic ring cracks easily when the teeth are loaded on one side.

Typical failure is a gauge that sticks at three quarters and then falls sharply, or a fuel light that comes on early. On the W12 and V8 cars the sender is often blamed for a gauge fault that is actually a dirty ground connection at the left rear chassis stud, so verify the earth before replacement.

Each sender is flow checked on a test rig that sweeps the arm through its full arc and logs the resistance at ten points. Supplied with a new flange O-ring. The float must be allowed to settle for a minute after installation before the gauge is trusted.