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Fuel tank - vehicles with front-wheel drive > < Rules for cleanliness

A4 Cabriolet Mk2

Test conditions
Test conditions
For checking fuel pump
l  Battery voltage at least 12.5 V.
l  Fuel pump fuse OK → Current flow diagrams, Electrical fault finding and Fitting locations.
l  Fuel pump relay -J17- OK → Current flow diagrams, Electrical fault finding and Fitting locations.
l  Fuel tank at least 1/4 full.
l  Fuel filter OK (not obstructed with dirt).
l  Fuel lines OK (not obstructed or crushed).
For checking tandem pump
l  Fuel tank at least 1/4 full.
l  Fuel filter OK (not obstructed with dirt).
l  Fuel lines OK (not obstructed or crushed).
l  Coolant temperature at least 85 °C.
l  Unit injectors OK
l  Electric fuel pump OK (pump runs)
   

Fuel tank - vehicles with front-wheel drive > < Rules for cleanliness