Fuel Pump Delivery Quantity, Checking

2008 Audi A3 Base, 2.0 E, Automatic DCTSECTION Fuel Pump Delivery Quantity, Checking

Special tools and workshop equipment required 

  • Switched remote control (jumper).
  • Multimeter.
  • Electrical connector test lead set.
  • Fuel pressure test set.
  • Measuring container, fuel-resistant.

Test conditions 

  • Battery voltage 12.5 V
  • Fuel filter OK
  • Fuel tank at least 1 /4 filled.
  • Fuel pressure regulator OK.
  • Ignition switched off.

Test procedure 

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK 

Start diagnosis 

-- Remove the fuel filler cap from fuel filler tube.

-- Remove rear seat bench. Refer to appropriate service information.

-- Remove the floor sealing cover -1-.

Fig 1: Identifying Fuel Pump Control Module, Retaining Clips & Floor Sealing Cover
GWWM20-0321Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the electrical harness connector -arrow- from the fuel delivery unit.

Fig 2: Identifying Fuel Delivery Unit Connector
GWWA20-1067Courtesy of AUDI OF AMERICA, LLC

-- Connect a switched remote control (jumper) to terminal -1- of the fuel delivery unit and to vehicle battery (+).

-- Connect a jumper wire from terminal -5- of the fuel delivery unit to vehicle Ground (GND).

Fig 3: Identifying Jumper Cable From Electrical Test Lead Set Connected To Fuel Delivery Unit Terminal And Vehicle Ground
GWWA20-1120Courtesy of AUDI OF AMERICA, LLC
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.