A8L V8-4.2L (BFM) (2004)
Leak Detection Pump Filter: All Technical Service Bulletins
Fuel System - Difficulty Filling Fuel Tank
20 07 03
March 19, 2007
2014357/1
Affected Vehicles
Fuel-filling problems
Condition
Customer may report difficulty filling the fuel tank due to the pumping station repeatedly shutting off before the tank is full.
This condition does not result in any fuel spillage or kick-back. This condition is solely for the convenience of the customer.
Technical Background
Filtration element was too fine in the original in-line filter (part number 4F0 201 801 A) for the leak detection pump. In some cases, the filter becomes
obstructed by particulate build-up that impedes tank pressure normalization. This condition may lead to refuelling difficulty.
Production Solution
Vehicles produced after the specified VIN break are equipped with an improved filter for (part number 4F0 201 801 B).
Service