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Fuel system, bleeding Audi A6 С6

3.2 v6 4v Fuel Injection Ignition, Engine Code(s): Bkh ~129 words

Fuel system, bleeding

To prevent damage to catalytic converter the fuel system must be bled after repair work on fuel lines or on fuel filter.

Work procedure

  1. Start engine and let engine run a few minutes at average RPM and then turn off again.

Note. At the beginning, engine may run roughly due to air in fuel supply system.

  1. Check fuel supply system for leaks.
  2. Check DTC memory and, if necessary, erase.
  3. Then perform a road test with at least one acceleration at Wide Open Throttle (WOT), then fuel supply system must be checked again for leaks.
  4. Check DTC memory and, if necessary, erase it. After DTC memory is erased, a readiness code must be generated for the engine control module using operating mode "Guided Fault-Finding".