Fuel tank, draining

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Fig 1: Identifying Fuel Extraction Unit VAS 5190

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Fuel siphoning unit VAS 5190

Work procedure

Observe safety precautions → Safety precautions when working on fuel supply system .

Observe rules for cleanliness → Rules for cleanliness .

CAUTION:

Observe procedures for disconnecting battery →
- 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL
- 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL for ELECTRICAL EQUIPMENT, CABRIOLET
.

Fig 2: Pushing Cover Over Battery Toward Right And Removing It Upward

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Push cover over battery toward the right - arrow 1 - and remove it upward - arrow 2 -.

Fig 3: Locating Battery Ground Strap

Courtesy of VOLKSWAGEN UNITED STATES, INC.

With ignition switched off, disconnect Battery Ground (GND) strap - arrow -.

CAUTION: Secure Ground (GND) wire of fuel extraction unit VAS 5190 to a bare area of the chassis.

Fig 4: Pulling Cone Piece From Shaft Piece Of Fuel Siphoning Device VAS 5190

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Pull cone piece - 2 - from shaft piece - 1 - of fuel siphoning device VAS 5190.
Using insulating tape, apply a mark - arrow - on hose at length - a - = 1,465 mm from end of suction hose.

Fig 5: Installing Fuel Siphoning Device VAS 5190 Onto Fuel Filler Tube Of Fuel Tank

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove fuel filler cap from fuel filler tube.
Screw shaft piece - 1 - of fuel extraction unit VAS 5190 on to fuel filler tube of fuel tank.
Push suction hose as far into fuel tank until the mark applied earlier - arrow - is positioned on shaft piece.

Fig 6: Sliding Suction Hose As Far Into Fuel Tank Until Mark Applied Earlier Meets Fuel Filler Tube

Courtesy of VOLKSWAGEN UNITED STATES, INC.

NOTE:

If using a siphoning device without a shaft piece, proceed basically in the same manner.
In this case, apply a mark - arrow - using insulating tape on hose at length - a - = 1,400 mm from end of suction hose. The suction hose is inserted correctly when the marking applied earlier stands opposite the lip of fuel filler tube.
If the hose can only be inserted with difficulty, coat it thinly with engine oil. Never use lubricants containing silicon.

Drain fuel tank through fuel filler tube.
Carefully pull out suction hose.
Connect battery. Observe safety precautions after connecting battery →
- 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL
- 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL for ELECTRICAL EQUIPMENT, CABRIOLET
.